CN108994557A - A kind of manufacturing process of polycrystalline diamond process tool - Google Patents
A kind of manufacturing process of polycrystalline diamond process tool Download PDFInfo
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- CN108994557A CN108994557A CN201811116404.1A CN201811116404A CN108994557A CN 108994557 A CN108994557 A CN 108994557A CN 201811116404 A CN201811116404 A CN 201811116404A CN 108994557 A CN108994557 A CN 108994557A
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- polycrystalline diamond
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- knife handle
- cutter head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0485—Helix angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/31—Diamond
- B23C2226/315—Diamond polycrystalline [PCD]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of manufacturing process of polycrystalline diamond process tool, comprising: fixes polycrystalline diamond cutter head blank and knife handle blank using welding fixture contraposition, then carries out vacuum welding；The polycrystalline diamond cutter head blank is cut by laser to form equally distributed 72~80 cutting edges in a ring far from one end of the knife handle blank, forms chip space between adjacent cutting sword；The tread of each cutting edge is 0.03~0.1mm, and the edge surface roughness Ra of each cutting edge is 0.1~0.4 μm, and the helical angle of each cutting edge is 45~65 °.72~80 sword polycrystalline diamond process tools of manufacturing process preparation of the invention have wearability good, long service life, for the more efficient of work pieces process, process time is shorter, the product size stability processed with the polycrystalline diamond process tool is good, reduces detection frequency, and rejection rate is low.
Description
Technical field
The present invention relates to tooling cost fields, in particular to a kind of manufacture of polycrystalline diamond process tool
Technique.
Background technique
Diamond cutter have extreme hardness and wearability, high heat conductance, low thermal coefficient of expansion, low-friction coefficient, with it is non-
The features such as ferrous metal affinity is small makes it obtain very high machining accuracy and processing efficiency in high-speed cutting.Diamond cutter
Processing characteristics be to be determined by the crystal structure of diamond, in diamond crystal, each carbon atom is adjacent with four
Carbon atom forms covalent bond, is spatially in positive tetrahedron structure, binding force is high between the carbon atom of this structure, macroscopically
Show high hardness.
Currently, diamond cutter mainly has single-crystal diamond (MCD) cutter, polycrystalline diamond (PCD) cutter and diamond
Coated cutting tool.Due to the characteristic of diamond lattic structure, the directionality of performance is very strong, and single-crystal diamond is easily along its cleavage facial cleft；
Polycrystalline diamond is formed by the different fine diamond of orientation is grained sintered, is shown as isotropy, is not easy along its cleavage facial cleft；
Diamond-coated tools also can get isotropic diamond coatings, so being not easy along its cleavage by controlling depositing operation
Facial cleft.
And polycrystal diamond cutter compares with diamond-coated tools, diamond-coated tools there are diamond coatings with
Cement carbide substrate binding force is weak, between coating and substrate difference of thermal expansion coefficients it is larger and the problems such as generate internal stress, diamond
In high-speed milling disbonding easily occurs for coated cutting tool, leads to coating failure.And traditional polycrystal diamond cutter is will to gather
Diamond cutting edge is welded direct on carbide chip or cutter hub and forms, and is also weld tabs pcd profile cutter, but there are sword numbers
The problem of polycrystalline diamond process tool of more complicated shape is difficult to cannot achieve the need of high-precision and long-life
It asks.At present for the processing method report of the polycrystalline diamond process tool of the complicated shape of sword number more (sword number is more than or equal to 10)
Road is less.
Summary of the invention
In view of this, a kind of manufacturing process of polycrystalline diamond process tool provided by the invention, preferably overcomes
State problem and defect of the existing technology, the manufacturing process of the polycrystalline diamond process tool is by by polycrystalline diamond cutter head
Blank and knife handle blank are fixed using welding fixture contraposition, then carry out vacuum welding, and polycrystalline diamond cutter head blank is remote
One end from the knife handle blank is cut by laser to form equally distributed 72~80 cutting edges in a ring and be located at and cut
Chip space between sword, makes 0.04~0.1mm of tread of each cutting edge, and the edge surface roughness Ra of each cutting edge is
The helical angle of 0.1~0.4 μm and the cutting edge is 45~65 °, thus obtained 72~80 sword polycrystalline diamond process tool
Good, the long service life with wearability, for the more efficient of work pieces process, process time is shorter, is added with the polycrystalline diamond
The product size stability that work tool sharpening goes out is good, reduces detection frequency, and rejection rate is low.
Specifically, the invention proposes embodiments in detail below:
A kind of manufacturing process of polycrystalline diamond process tool, comprising:
Polycrystalline diamond cutter head blank and knife handle blank are fixed using welding fixture contraposition, then carry out vacuum welding；
The polycrystalline diamond cutter head blank is cut by laser to be formed in a ring far from one end of the knife handle blank
Equally distributed 72~80 cutting edges, form chip space between adjacent cutting sword, and the tread of each cutting edge is 0.04
The edge surface roughness Ra of~0.1mm, each cutting edge are 0.1~0.4 μm, and the helical angle of each cutting edge is
45~65 °.
As a further improvement of the above technical scheme, the depth of the chip space is 0.06~0.15mm；It is each described
The sword length of cutting edge is 1~3mm.
As a further improvement of the above technical scheme, the vacuum welding temperature is 600 DEG C~700 DEG C, the vacuum
Weld interval is 2~3h.
As a further improvement of the above technical scheme, the polycrystalline diamond cutter head blank is by by basal layer and plycrystalline diamond
Diamond layer compacting sintering forms；One end vacuum welding of the basal layer far from the polycrystalline diamond layer is in the knife handle embryo
On part, equally distributed 72~80 cutting edges in a ring are formed by laser processing on polycrystalline diamond layer.
As a further improvement of the above technical scheme, it is hard to be all made of tungsten carbide-base for the basal layer and the knife handle blank
Matter alloy material is made.
As a further improvement of the above technical scheme, the polycrystalline diamond layer is by synthetic diamond micropowder and function gold
Belong to powder to form in the basal layer far from one end forming and sintering of knife handle blank.
As a further improvement of the above technical scheme, the function metal powder includes cobalt powder, nickel powder, chromium powder and tungsten carbide
Powder；The partial size of the synthetic diamond micropowder is 300~500 μm；The partial size of the function metal powder is 150~300 μm.
As a further improvement of the above technical scheme, by the polycrystalline diamond cutter head blank and the knife handle blank into
It further include the welding surface of the welding surface to the polycrystalline diamond cutter head blank and the knife handle blank respectively before row vacuum welding
Carry out sanding and polishing.
As a further improvement of the above technical scheme, the manufacturing process of the polycrystalline diamond process tool further include:
Pass through laser processing one groove of molding among the one end of the polycrystalline diamond cutter head blank far from the knife handle blank.
As a further improvement of the above technical scheme, by the polycrystalline diamond cutter head blank far from the knife handle embryo
One end of part is cut by laser to form equally distributed 72~80 cutting edges in a ring before, further include using accurate digital control bed
The polycrystalline diamond cutter head blank and the knife handle blank are refined to required precision respectively.
Compared with prior art, a kind of beneficial effect of the manufacturing process of polycrystalline diamond process tool of the invention is:
The manufacturing process of polycrystalline diamond process tool of the invention is by by polycrystalline diamond cutter head blank and knife handle embryo
Part is fixed using welding fixture contraposition, then carries out vacuum welding, and by polycrystalline diamond cutter head blank far from the knife handle embryo
One end of part is cut by laser to form equally distributed 72~80 cutting edges and the chip removal between cutting edge in a ring
Slot makes 0.03~0.1mm of tread of each cutting edge, and the edge surface roughness Ra of each cutting edge is 0.1~0.4 μm,
And the helical angle of the cutting edge is 45~65 °, thus obtained 72~80 sword polycrystalline diamond process tool has wearability
Good, long service life is at least one times of the service life of weld tabs pcd profile cutter, is used for the more efficient of work pieces process, when processing
Between it is shorter, the product size stability processed with the polycrystalline diamond process tool is good, reduces detection frequency, and rejection rate
It is low.
In conclusion the structure that the present invention is special, has the advantages that above-mentioned many and practical value, and in similar product
In there are no similar method and publish or use and really belong to innovation, produce handy and practical effect, more existing skill
Art has effects that the multinomial of enhancement, thus more suitable for practical, and there is extensive industrial value.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the polycrystalline diamond process tool of preparation of the embodiment of the present invention；
Fig. 2 is that a kind of structure of the polycrystalline diamond cutter head of the polycrystalline diamond process tool of preparation of the embodiment of the present invention is shown
It is intended to；
Fig. 3 is the partial enlarged view of A in Fig. 2；
Fig. 4 is a kind of structural schematic diagram of the polycrystalline diamond process tool of preparation of the embodiment of the present invention.
Drawing reference numeral explanation:
1 polycrystalline diamond process tool
100 polycrystalline diamond cutter heads
110 basal layers
120 polycrystalline diamond layers
121 cutting edges
122 chip spaces
123 grooves
200 knife handles
Specific embodiment
To facilitate the understanding of the present invention, conductive nano paper and preparation method thereof is carried out below with reference to relevant drawings more complete
The description in face.The embodiment of conductive nano paper and preparation method thereof is given in attached drawing.But conductive nano paper and its preparation side
Method can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these embodiments
Purpose be to keep the disclosure to conductive nano paper and preparation method thereof more thorough and comprehensive.
Hereinafter, various embodiments of the present invention will be described more fully.The present invention can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that: there is no various embodiments of the present invention are limited to spy disclosed herein
Determine the intention of embodiment, but should invention is construed as cover in the spirit and scope for falling into various embodiments of the present invention
All adjustment, equivalent and/or optinal plan.
Hereinafter, disclosed in the term " includes " that can be used in various embodiments of the present invention or " may include " instruction
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as existing
Used in various embodiments of the present invention, term " includes ", " having " and its cognate are meant only to indicate special characteristic, number
Word, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude first one or more other
Feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more features, number,
Step, operation, element, component or aforementioned item combination a possibility that.
In various embodiments of the present invention, statement " A or/and B " includes any combination or the institute of the text listed file names with
There is combination, such as, it may include A, it may include B or may include A and B both.
The statement (" first ", " second " etc.) used in various embodiments of the present invention can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, the above statement is not intended to limit the suitable of the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, the first user fills
It sets and indicates different user device with second user device, although the two is all user apparatus.For example, of the invention each not departing from
In the case where the range of kind embodiment, first element is referred to alternatively as second element, and similarly, second element is also referred to as first
Element.
It should also be noted that in the present invention, unless otherwise specific regulation and definition, the arts such as " installation ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection or being integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be and be directly connected to, and can be indirectly connected through an intermediary；It can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
In the present invention, those skilled in the art are it is to be appreciated that indicating position or positional relationship in text
Term be orientation based on the figure or positional relationship, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.
The term used in various embodiments of the present invention is used only for the purpose of describing specific embodiments and not anticipates
In limitation various embodiments of the present invention.Unless otherwise defined, otherwise all terms used herein (including technical term and
Scientific term) there is contain identical with the normally understood meaning of various embodiments of the present invention one skilled in the art
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in the various embodiments of invention.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of manufacturing process of polycrystalline diamond process tool 1, comprising:
(1) rigid 200 blank of knife handle and 100 blank of polycrystalline diamond cutter head are provided.
(2) 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle are fixed using welding fixture contraposition,
Then vacuum welding is carried out.
Preferably, before 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle being carried out vacuum welding, also
Welding surface including 200 blank of welding surface and the knife handle respectively to 100 blank of polycrystalline diamond cutter head is polished
Polishing, is more advantageous in this way by 100 blank of polycrystalline diamond cutter head and 200 blank rapid abutting joint positioning welding of knife handle.
(3) shape is cut by laser far from one end of 200 blank of knife handle in 100 blank of polycrystalline diamond cutter head
At equally distributed 72~80 cutting edges 121 in a ring, chip space 122, the chip space are formed between adjacent cutting sword 121
122 chips generated for machining to be discharged in time.
Preferably, 100 blank of polycrystalline diamond cutter head is being passed through into laser far from one end of 200 blank of knife handle
Before cutting forms equally distributed 72~80 cutting edges 121 in a ring, further including respectively will be described poly- using accurate digital control bed
100 blank of diamond cutter head and 200 blank of the knife handle, which are refined to, needs precision to be achieved.
Preferably, in the embodiment of the present invention, 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle are cylindrical shape.
It should be noted that the tread of cutting edge 121 refers to the edge width of cutting edge, each cutting edge of the invention
121 tread is 0.03~0.1mm, has not only guaranteed that the intensity of cutting edge 121 was sufficient, but also guarantee obtained process tool with longer
Service life, and guarantee preferable stock-removing efficiency.Surface roughness refers to the smaller spacing and minor peaks that finished surface has
The unevenness of paddy, value is smaller, then shows more smooth；The edge surface roughness Ra of each cutting edge 121 of the invention is 0.1
~0.4 μm, the cutting edge of the cutting edge 121 is smooth sharp, and the surface accuracy of the workpiece such as the glass being cut is enable to guarantee.This hair
The helical angle of bright each cutting edge 121 is 45~65 °, and the process tool which guarantees has preferably strong
Degree, wearability and the chip rate of outflow.
The manufacturing process of polycrystalline diamond process tool 1 of the invention is by by 100 blank of polycrystalline diamond cutter head and knife
200 blank of handle is fixed using welding fixture contraposition, then carries out vacuum welding, and 100 blank of polycrystalline diamond cutter head is separate
One end of 200 blank of knife handle is cut by laser to form equally distributed 72~80 cutting edges 121 in a ring and be located at
Chip space 122 between cutting edge 121 makes 0.03~0.1mm of tread of each cutting edge 121, the sword of each cutting edge 121
Discharge surface roughness Ra is 0.1~0.4 μm and the helical angle of the cutting edge 121 is 45~65 °, thus obtained 72~80
Sword polycrystalline diamond process tool 1 has wearability good, long service life, is at least one times of the service life of weld tabs pcd profile cutter,
It is used for the more efficient of work pieces process, and process time is shorter, the product size processed with the polycrystalline diamond process tool 1
Stability is good, reduces detection frequency, and rejection rate is low.
Preferably, 100 blank of polycrystalline diamond cutter head is by suppressing basal layer 110 and polycrystalline diamond layer 120
It is sintered；One end vacuum welding of the basal layer 110 far from the polycrystalline diamond layer 120 is in 200 blank of knife handle
On.Equally distributed 72~80 cutting edges 121 in a ring are formed by laser processing on polycrystalline diamond layer 120.
Preferably, it is laser machined in the end face of polycrystalline diamond layer 120 and side, 72~80 made cutting
Sword 121 extends to end face from the side of polycrystalline diamond layer 120, forms " 7 " font or " L " type.
Certainly, the present invention is not intended to limit the shape of cutting edge 121, and the shape of each cutting edge 121 can also be enumerated as triangle
Shape is trapezoidal etc..
Preferably, in the embodiment of the present invention, the groove depth of chip space 122 is 0.06~0.15mm；On the one hand chip space is avoided
122 intensity that are too deep and influencing cutting edge 121, make its weakened, and 122 depth of chip space is on the other hand avoided shallowly to influence to add excessively
Work guarantees ideal machining accuracy.Further, chip space 122 is located at the broad-ruler of the end face part of polycrystalline diamond layer 120
It is very little gradually to successively decrease from end face periphery to end face center direction.
The long land length for referring to cutting edge 121 of the sword of cutting edge 121, it is preferable that the sword length of each cutting edge 121 is
1~3mm guarantees effective cutting range of cutting edge 121.In the embodiment of the present invention, the long sword of each cutting edge 121 includes being located at
The sum of the side of polycrystalline diamond layer 120 and the length of end face.
As shown in figure 4, the length dimension of polycrystalline diamond layer 120 is a, the length of polycrystalline diamond layer 120 and basal layer 110
The length dimension of the sum of degree namely polycrystalline diamond cutter head 100 is b, the length dimension of polycrystalline diamond cutter head 100 and knife handle 200
The sum of that is, the length dimension of entire polycrystalline diamond process tool 1 be c；Preferably, a:b:c is 1:(2~2.2): (21.3~
23.5)。
Preferably, the diameter group dimension ratio of polycrystalline diamond cutter head 100 and knife handle 200 is (1.2~1.6): 1.Plycrystalline diamond
The radius size ratio of the chamfer radius size and polycrystalline diamond cutter head 100 of 120 end face of diamond layer and side is (0.068
~0.073): 1, the intensity of the polycrystalline diamond cutter head 100 obtained in this ratio is higher, and the quantity of the workpiece such as workable glass is more
It is more.
Preferably, the vacuum welding temperature is 600 DEG C~700 DEG C, and the vacuum welding time is 2~3h；The vacuum
Welding temperature and time can be such that 200 blank of knife handle is sufficiently welded in place with 100 blank of polycrystalline diamond cutter head, have and preferably connect
Connect intensity.
Preferably, the basal layer 110 and 200 blank of the knife handle are all made of tungsten carbide base carbide alloy material and are made.
It should be noted that tungsten carbide base carbide alloy is the sintering for cohering phase composition using tungsten carbide as hard phase and metal
Material, in the present embodiment, the mass percent in tungsten carbide base carbide alloy containing cobalt is no more than 12%, and grain size is 0.4 μm,
Hardness is HRA 92.5, density 14.10g/mm3, bending strength 4200N/mm2。
Preferably, the polycrystalline diamond layer 120 is by the compound of synthetic diamond micropowder and function metal powder described
One end forming and sintering of basal layer 110 forms.The function metal powder may include cobalt powder, nickel powder, chromium powder and tungsten carbide powder.It is preferred that
Ground, synthetic diamond micropowder account for the 78~95% of the gross mass of synthetic diamond micropowder and function metal powder.The artificial diamond
The partial size of stone micro mist is preferably 300~500 μm；The partial size of the function metal powder is preferably 150~300 μm；What is made is poly-
More common 120 structural strength of polycrystalline diamond layer of diamond layer 120 is higher, and wear-resisting property is more preferable.
Preferably, the manufacturing process of the polycrystalline diamond process tool 1 further include: in the polycrystalline diamond cutter head
100 blank form a groove 123 far from laser processing is passed through among one end of 200 blank of knife handle.
It should be noted that by the one end of 100 blank of polycrystalline diamond cutter head far from 200 blank of knife handle
Centre setting fluted 123, avoids the workpiece such as the end face of polycrystalline diamond layer 120 and glass material from contacting, and is convenient for each cutting edge
121 be located at polycrystalline diamond layer 120 end face parts can more preferably to workpiece such as glass materials machining.The groove
123 can also first pass through laser processing molding 72~80 with 72~80 cutting edges 121 simultaneously by laser processing molding
A cutting edge 121, then the groove 123 is formed by laser processing.Further, in the present embodiment, the groove 123 is transversal
Face is circle, and 72~80 cutting edges 121 are uniformly annularly distributed in the opening periphery of the groove 123, i.e. 72~80 cutting edges 121 with
Groove 123 is same central axis.
It should be noted that the process tool obtained using the manufacturing process of polycrystalline diamond process tool 1 of the invention
Numerous types, for example, the polycrystalline diamond process tool 1 can be profile milling cutter, for workpiece carry out milling and form
Required profile；The polycrystalline diamond process tool 1 can also be form grinding knife, for carrying out grinding-shaping to institute to workpiece
The precision needed.
Embodiment 1
A kind of manufacturing process of polycrystalline diamond process tool 1, comprising the following steps:
(1) rigid 200 blank of knife handle and 100 blank of polycrystalline diamond cutter head are provided, 200 blank of knife handle uses tungsten carbide-base
Hard alloy material is made；100 blank of polycrystalline diamond cutter head is by burning basal layer 110 and the compacting of polycrystalline diamond layer 120
It ties, basal layer 110 is made of tungsten carbide base carbide alloy material, and polycrystalline diamond layer 120 is by synthetic diamond micropowder
It is made with the compound of function metal powder, wherein the partial size of synthetic diamond micropowder is 300 μm, and function metal powder is cobalt powder, nickel
Powder, chromium powder and tungsten carbide powder are the mixed-powder of 0.5:3:3:3.5, the quality containing cobalt in tungsten carbide base carbide alloy in mass ratio
Percentage is no more than 12%.
(2) first the welding surface of 200 blank of the welding surface to 100 blank of polycrystalline diamond cutter head and knife handle carries out polishing throwing
Then 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle are fixed using welding fixture contraposition, then carry out vacuum welding by light
It connects, temperature used by the vacuum welding is 600 DEG C, and the vacuum welding time is 3h.
(3) 100 blank of polycrystalline diamond cutter head and 200 blank of the knife handle are carried out respectively by finishing using accurate digital control bed
Work, then shape is cut by laser in the end face of one end by 100 blank of polycrystalline diamond cutter head far from 200 blank of knife handle and side
At equally distributed 72 cutting edges 121 in a ring, 72 cutting edges 121 made are from the side of polycrystalline diamond layer 120
Face extends to end face, forms " 7 " font or " L " type, forms chip space 122 between adjacent cutting sword 121, and in polycrystalline diamond
A circular groove 123 is formed by laser processing among the end face of layer 120,72 cutting edges 121 is made uniformly to be annularly distributed in the groove
123 opening periphery.
Wherein, the tread of each cutting edge 121 is 0.03mm；The sword length of each cutting edge 121 is 1mm；Each cutting
The edge surface roughness Ra of sword 121 is 0.1 μm；The helical angle of each cutting edge 121 is 65 °；The groove depth of chip space 122 is
0.06mm。
The length dimension of polycrystalline diamond layer 120 is a, the sum of length of polycrystalline diamond layer 120 and basal layer 110 namely
The length dimension of polycrystalline diamond cutter head 100 is b, the sum of polycrystalline diamond cutter head 100 and the length dimension of knife handle 200 that is, whole
The length dimension of a polycrystalline diamond process tool 1 is c；Preferably, a:b:c 1:2:21.3,1；Polycrystalline diamond cutter head 100
Diameter group dimension ratio with knife handle 200 is (1.2~1.6): 1 such as 1.2:1；120 end face of polycrystalline diamond layer and side are fallen
The radius size ratio of 100 blank of angular radius size and polycrystalline diamond cutter head is 0.068:1.
Process tool and existing welding type PCD profile cutter and hard alloy profile cutter to the embodiment 1 preparation into
Row performance test comparison, as a result as shown in table 1 below.
Table 1
Embodiment 2
A kind of manufacturing process of polycrystalline diamond process tool 1, comprising the following steps:
(1) rigid 200 blank of knife handle and 100 blank of polycrystalline diamond cutter head are provided, 200 blank of knife handle uses tungsten carbide-base
Hard alloy material is made；100 blank of polycrystalline diamond cutter head is by burning basal layer 110 and the compacting of polycrystalline diamond layer 120
It ties, basal layer 110 is made of tungsten carbide base carbide alloy material, and polycrystalline diamond layer 120 is by synthetic diamond micropowder
It is made with the compound of function metal powder, wherein the partial size of synthetic diamond micropowder is 400 μm, and function metal powder is cobalt powder, nickel
Powder, chromium powder and tungsten carbide powder are the mixed-powder of 0.5:3:3:3.5, the quality containing cobalt in tungsten carbide base carbide alloy in mass ratio
Percentage is no more than 12%.
(2) first the welding surface of 200 blank of the welding surface to 100 blank of polycrystalline diamond cutter head and knife handle carries out polishing throwing
Then 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle are fixed using welding fixture contraposition, then carry out vacuum welding by light
It connects, temperature used by the vacuum welding is 650 DEG C, and the vacuum welding time is 2.5h.
(3) 100 blank of polycrystalline diamond cutter head and 200 blank of the knife handle are carried out respectively by finishing using accurate digital control bed
Work, then shape is cut by laser in the end face of one end by 100 blank of polycrystalline diamond cutter head far from 200 blank of knife handle and side
At equally distributed 76 cutting edges 121 in a ring, 76 cutting edges 121 made are from the side of polycrystalline diamond layer 120
Face extends to end face, forms " 7 " font or " L " type, forms chip space 122 between adjacent cutting sword 121, and in polycrystalline diamond
A circular groove 123 is formed by laser processing among the end face of layer 120,76 cutting edges 121 is made uniformly to be annularly distributed in the groove
123 opening periphery.
Wherein, the tread of each cutting edge 121 is 0.06mm；The sword length of each cutting edge 121 is 2mm；Each cutting
The edge surface roughness Ra of sword 121 is 0.3 μm；The helical angle of each cutting edge 121 is 55 °；The groove depth of chip space 122 is
0.1mm。
The length dimension of polycrystalline diamond layer 120 is a, the sum of length of polycrystalline diamond layer 120 and basal layer 110 namely
The length dimension of polycrystalline diamond cutter head 100 is b, the sum of polycrystalline diamond cutter head 100 and the length dimension of knife handle 200 that is, whole
The length dimension of a polycrystalline diamond process tool 1 is c；Preferably, a:b:c 1:2.2:22.5；Polycrystalline diamond cutter head 100
Diameter group dimension ratio with knife handle 200 is 1.4:1；The chamfer radius size of 120 end face of polycrystalline diamond layer and side and poly-
The radius size ratio of 100 blank of diamond cutter head is 0.070:1.
Process tool and existing welding type PCD profile cutter and hard alloy profile cutter to the embodiment 2 preparation into
Row performance test comparison, as a result as shown in table 2 below.
Table 2
Embodiment 3
A kind of manufacturing process of polycrystalline diamond process tool 1, comprising the following steps:
(1) rigid 200 blank of knife handle and 100 blank of polycrystalline diamond cutter head are provided, 200 blank of knife handle uses tungsten carbide-base
Hard alloy material is made；100 blank of polycrystalline diamond cutter head is by burning basal layer 110 and the compacting of polycrystalline diamond layer 120
It ties, basal layer 110 is made of tungsten carbide base carbide alloy material, and polycrystalline diamond layer 120 is by synthetic diamond micropowder
It is made with the compound of function metal powder, wherein the partial size of synthetic diamond micropowder is 300 μm, and function metal powder is cobalt powder, nickel
Powder, chromium powder and tungsten carbide powder are the mixed-powder of 0.5:3:3:3.5, the quality containing cobalt in tungsten carbide base carbide alloy in mass ratio
Percentage is no more than 12%.
(2) first the welding surface of 200 blank of the welding surface to 100 blank of polycrystalline diamond cutter head and knife handle carries out polishing throwing
Then 100 blank of polycrystalline diamond cutter head and 200 blank of knife handle are fixed using welding fixture contraposition, then carry out vacuum welding by light
It connects, temperature used by the vacuum welding is 600 DEG C, and the vacuum welding time is 3h.
(3) 100 blank of polycrystalline diamond cutter head and 200 blank of the knife handle are carried out respectively by finishing using accurate digital control bed
Work, then shape is cut by laser in the end face of one end by 100 blank of polycrystalline diamond cutter head far from 200 blank of knife handle and side
At equally distributed 80 cutting edges 121 in a ring, 80 cutting edges 121 made are from the side of polycrystalline diamond layer 120
Face extends to end face, forms " 7 " font or " L " type, forms chip space 122 between adjacent cutting sword 121, and in polycrystalline diamond
A circular groove 123 is formed by laser processing among the end face of layer 120,80 cutting edges 121 is made uniformly to be annularly distributed in the groove
123 opening periphery.
Wherein, the tread of each cutting edge 121 is 0.1mm；The sword length of each cutting edge 121 is 3mm；Each cutting edge
121 edge surface roughness Ra is 0.4 μm；The helical angle of each cutting edge 121 is 45 °；The groove depth of chip space 122 is
0.15mm。
The length dimension of polycrystalline diamond layer 120 is a, the sum of length of polycrystalline diamond layer 120 and basal layer 110 namely
The length dimension of polycrystalline diamond cutter head 100 is b, the sum of polycrystalline diamond cutter head 100 and the length dimension of knife handle 200 that is, whole
The length dimension of a polycrystalline diamond process tool 1 is c；Preferably, a:b:c 1:2.2:23.5；Polycrystalline diamond cutter head 100
Diameter group dimension ratio with knife handle 200 is (1.2~1.6): 1 such as 1.6:1；120 end face of polycrystalline diamond layer and side are fallen
The radius size ratio of 100 blank of angular radius size and polycrystalline diamond cutter head is 0.073:1.
Process tool and existing welding type PCD profile cutter and hard alloy profile prepared by the embodiment of the present invention 3
Knife is tested for the property comparison, as a result as shown in table 3 below.
Table 3
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of manufacturing process of polycrystalline diamond process tool, it is characterised in that: include:
Polycrystalline diamond cutter head blank and knife handle blank are fixed using welding fixture contraposition, then carry out vacuum welding；
The polycrystalline diamond cutter head blank is cut by laser to be formed in a ring uniformly far from one end of the knife handle blank
72~80 cutting edges of distribution, form chip space between adjacent cutting sword, and the tread of each cutting edge is 0.03~
0.1mm, the edge surface roughness Ra of each cutting edge are 0.1~0.4 μm, and the helical angle of each cutting edge is 45
~65 °.
2. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: the chip space
Depth is 0.06~0.15mm；The sword length of each cutting edge is 1~3mm.
3. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: the vacuum welding
Temperature is 600 DEG C~700 DEG C, and the vacuum welding time is 2~3h.
4. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: the plycrystalline diamond Buddha's warrior attendant
Stone cutter head blank is by forming basal layer and polycrystalline diamond layer compacting sintering；The basal layer is far from the polycrystalline diamond
One end vacuum welding of layer forms uniform point in a ring by laser processing on polycrystalline diamond layer in the knife handle blank
72~80 cutting edges of cloth.
5. the manufacturing process of polycrystalline diamond process tool according to claim 4, it is characterised in that: the basal layer and
The knife handle blank is all made of tungsten carbide base carbide alloy material and is made.
6. the manufacturing process of polycrystalline diamond process tool according to claim 4, it is characterised in that: the plycrystalline diamond Buddha's warrior attendant
Rock layers are formed in the basal layer far from one end forming and sintering of knife handle blank by synthetic diamond micropowder with function metal powder.
7. the manufacturing process of polycrystalline diamond process tool according to claim 6, it is characterised in that: the function metal
Powder includes cobalt powder, nickel powder, chromium powder and tungsten carbide powder；The partial size of the synthetic diamond micropowder is 300~500 μm；The function
The partial size of metal powder is 150~300 μm.
8. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: by the plycrystalline diamond gold
It further include respectively to the polycrystalline diamond cutter head blank before diamond tool bit blank and the knife handle blank carry out vacuum welding
Welding surface and the welding surface of the knife handle blank carry out sanding and polishing.
9. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: further include: in institute
It states polycrystalline diamond cutter head blank and forms a groove far from laser processing is passed through among one end of the knife handle blank.
10. the manufacturing process of polycrystalline diamond process tool according to claim 1, it is characterised in that: described will gather
Diamond cutter head blank is cut by laser to form in a ring equally distributed 72~80 far from one end of the knife handle blank
It further include respectively being carried out the polycrystalline diamond cutter head blank and the knife handle blank using accurate digital control bed before a cutting edge
Finishing.
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| CN113231898A (en) * | 2021-04-23 | 2021-08-10 | 西北工业大学 | SiC difficult to processfUltrasonic vibration auxiliary processing method for/SiC ceramic matrix composite material |
| WO2021190529A1 (en) * | 2020-03-25 | 2021-09-30 | 广东工业大学 | Pcd cutter for realizing machining by means of milling instead of grinding, and preparation method therefor and use thereof |
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