CN107433329A - Carbide twist drill bit straight forming method - Google Patents
Carbide twist drill bit straight forming method Download PDFInfo
- Publication number
- CN107433329A CN107433329A CN201710609540.3A CN201710609540A CN107433329A CN 107433329 A CN107433329 A CN 107433329A CN 201710609540 A CN201710609540 A CN 201710609540A CN 107433329 A CN107433329 A CN 107433329A
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- CN
- China
- Prior art keywords
- drill bit
- mould
- mold
- bit
- mold base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to powder compacting technical field,Particularly a kind of carbide twist drill bit straight forming method,Compared with prior art,The carbide twist drill bit straight forming method is using first making drill bit original mold,Urethane foundry is used into Bit Mould by drill bit original mold again,Then batch micro operations drill bit mold base,In drill bit mold base manufacturing process,First tungsten-carbide powder is poured into the drill bit mold base in dry mould cold isostatic compaction machine,Reach certain pressure shaping through the pressurization of overdrying mould cold isostatic compaction machine,Then the elasticity and intensity of polyurethane are utilized,Pressure release rear mold is rebounded,It can be taken off drill bit mold base,Then finished after being sintered shaping to drill bit mold base again,Specification drill bit needed for can obtaining,Save substantial amounts of process equipment and diamond,Improve efficiency,Time saving and energy saving less manpower,Save raw material and may be up to more than 35%,Saved for 25% time,The drill bit stay in grade of production,High yield rate,And longer thinner special requirement drill bit can be produced.
Description
Technical field
The present invention relates to powder compacting technical field, particularly a kind of carbide twist drill bit straight forming method.
Background technology
Carbide drill of the prior art is all to pass through the bearing linkage motion cutting center of three axle five using hard alloy bar
It is machined, and is ground using different in nature diamond emery wheel, it is a large amount of to waste diamond and alloy material, especially
Some Special drilling bits, such as the Step drill and straight shank drill in fluted drill, there is difficulty of processing is big, long processing time, into
The problems such as type rate is low, delivery man-hour is long, big compared with long drill bit processing technology difficulty.
The content of the invention
To solve the defects of present in powder former in the prior art and problem, there is provided a kind of carbide twist drill bit
Straight forming method.
The present invention is that technical scheme is used by solving its technical problem：The carbide twist drill bit of the present invention is direct
Method of forming technique is as follows：
(1) a drill bit original mold first, is made by art methods, the size of the drill bit original mold and required drill bit finished product
It is consistent with model；
(2) and then drill bit original mold is fixed on base and external diameter is adapted in the mould of dry mould iso-static pressure shaping machine, then toward mould
Liquid polyurethane is poured into tool, after liquid polyurethane solidification after take out drill bit original mold, formed a urethane foundry into drill bit
Mould, and the Bit Mould possesses certain elasticity and intensity；
(3), by Bit Mould come batch micro operations drill bit mold base, in drill bit mold base manufacturing process, first by tungsten carbide powder
End is poured into the Bit Mould in dry mould cold isostatic compaction machine；
(4), through overdrying mould cold isostatic compaction machine pressurization reach certain pressure shaping, then using polyurethane elasticity with
Intensity, pressure release rear mold are rebounded, you can take out drill bit mold base；
(5) finished after, being sintered shaping to drill bit mold base again, you can obtain fluted drill finished product.
The beneficial effects of the invention are as follows：Compared with prior art, carbide twist drill bit straight forming method of the invention
Using drill bit original mold is first made, a drill bit original mold is made according to required size and model, drill bit original mold is fixed on afterwards
There are base and external diameter to be adapted to the mould of dry mould iso-static pressure shaping machine, then pour into liquid polyurethane, drill bit original mold is taken out after solidification, lead to
Urethane foundry is crossed into Bit Mould, Bit Mould possesses certain elasticity and intensity, then by Bit Mould come batch micro operations
Drill bit mold base, in drill bit mold base manufacturing process, the drill bit mould that first pours into tungsten-carbide powder in dry mould cold isostatic compaction machine
In embryo, reach certain pressure shaping through the pressurization of overdrying mould cold isostatic compaction machine, then utilize the elasticity and intensity of polyurethane, pressure
Power release rear mold is rebounded, you can is taken out drill bit mold base, is finished after being then sintered shaping to drill bit mold base again, you can
Required specification drill bit, substantial amounts of process equipment and diamond are saved, improve efficiency, time saving and energy saving less manpower, save former material
Material up to more than 35%, saved for 25% time, the drill bit stay in grade of production, high yield rate, and can produce longer thinner
Special requirement drill bit.
Brief description of the drawings
The carbide twist drill bit straight forming method of the present invention is made into one with reference to the accompanying drawings and detailed description
Walk explanation.
Fig. 1 is that the stereochemical structure of the finished product of the Step drill in the carbide twist drill bit straight forming method of the present invention is shown
It is intended to；
Fig. 2 is the Bit Mould structural representation of the Step drill in Fig. 1；
Fig. 3 is that the stereochemical structure of the finished product of the straight shank drill in the carbide twist drill bit straight forming method of the present invention is shown
It is intended to；
Fig. 4 is the Bit Mould structural representation of the straight shank drill in Fig. 3.
Embodiment：
As shown in Figures 1 to 4, it is more special to be mainly used in profile to carbide twist drill bit straight forming method of the invention
Fluted drill, particularly for Step drill 1 and straight shank drill 2, the comparison in the drill bit market of both types is more, mainly
It is more difficult and complicated to there is processing in the prior art, and uses the straight forming rule of the present invention to be fully solved in the prior art
The problems such as processed complex, the technique of the straight forming method are as follows：
(1) a drill bit original mold first, is made by art methods, in the original mold of Step drill 1 and Fig. 3 in Fig. 1
The original mold of straight shank drill 2, the drill bit original mold is consistent with the size and model of required drill bit finished product, that is, the drill bit to be produced in batches
Size and model.
(2) and then drill bit original mold is fixed on base and external diameter is adapted in the mould of dry mould iso-static pressure shaping machine, then toward mould
Liquid polyurethane is poured into tool, after liquid polyurethane solidification after take out drill bit original mold, formed a urethane foundry into drill bit
Mould, such as the straight shank drill mould 4 in the Step drill mould 3 and Fig. 4 in Fig. 2, Step drill mould 3 and straight shank drill mould
4 are formed by urethane foundry, and size, performance etc. are applied to dry mould iso-static pressure shaping machine, and it is quiet can to put dry mould etc. into
It is molded in pressing machine, and the Bit Mould possesses certain elasticity and intensity.
(3), by Bit Mould come batch micro operations drill bit mold base, in drill bit mold base manufacturing process, first by tungsten carbide powder
End is poured into the Bit Mould in dry mould cold isostatic compaction machine, and the Bit Mould is just as the He of Step drill mould 3 in Fig. 2
As straight shank drill mould 4 in Fig. 4.
(4) and then tungsten-carbide powder is molded in Bit Mould, i.e., reaches certain through the pressurization of overdrying mould cold isostatic compaction machine
Pressure forming, then rebounded using the elasticity and intensity of polyurethane, pressure release rear mold, you can take out drill bit mold base, the brill
The model and size and drill bit original mold of head mould embryo are very nearly the same, and simply some faces and angle need to carry out roughing once again.
(5) finished after, being sintered shaping to drill bit mold base again, you can obtain fluted drill finished product.
In summary, compared with prior art, carbide twist drill bit straight forming method of the invention is used and first made
Drill bit original mold, a drill bit original mold is made according to required size and model, drill bit original mold has been fixed on base and outer afterwards
Footpath is adapted to the mould of dry mould iso-static pressure shaping machine, then pours into liquid polyurethane, and drill bit original mold is taken out after solidification, is cast by polyurethane
Causing Bit Mould, Bit Mould possesses certain elasticity and intensity, then by Bit Mould come batch micro operations drill bit mold base,
In drill bit mold base manufacturing process, first tungsten-carbide powder is poured into the drill bit mold base in dry mould cold isostatic compaction machine, through overdrying
The pressurization of mould cold isostatic compaction machine reaches certain pressure shaping, then utilizes the elasticity and intensity of polyurethane, pressure release rear mold
Tool rebounds, you can takes out drill bit mold base, is finished after being then sintered shaping to drill bit mold base again, you can specification is bored needed for obtaining
Head, substantial amounts of process equipment and diamond are saved, improve efficiency, time saving and energy saving less manpower, save raw material and may be up to
More than 35%, saved for 25% time, the drill bit stay in grade of production, high yield rate, and longer thinner special rule can be produced
Lattice drill bit.
Property that the present invention is described according to an embodiment of the invention and nonrestrictive description, it should be appreciated that this
The protection domain of invention is not limited thereto, in the case where not departing from relevant scope defined by the claims, this
The technical staff in field can make change and/or modification, and should all be included within the scope of the present invention.
Claims (1)
1. carbide twist drill bit straight forming method, process are as follows：
(1) a drill bit original mold first, is made by art methods, the size and type of the drill bit original mold and required drill bit finished product
It is number consistent；
(2) and then drill bit original mold is fixed on base and external diameter is adapted in the mould of dry mould iso-static pressure shaping machine, then toward in mould
Pour into liquid polyurethane, after liquid polyurethane solidification after take out drill bit original mold, formed a urethane foundry into Bit Mould,
And the Bit Mould possesses certain elasticity and intensity；
(3), in drill bit mold base manufacturing process, first tungsten-carbide powder is fallen come batch micro operations drill bit mold base by Bit Mould
Enter in the Bit Mould in dry mould cold isostatic compaction machine；
(4), reach certain pressure shaping through the pressurization of overdrying mould cold isostatic compaction machine, then utilize the elastic and strong of polyurethane
Degree, pressure release rear mold are rebounded, you can take out drill bit mold base；
(5) finished after, being sintered shaping to drill bit mold base again, you can obtain fluted drill finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609540.3A CN107433329A (en) | 2017-07-25 | 2017-07-25 | Carbide twist drill bit straight forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609540.3A CN107433329A (en) | 2017-07-25 | 2017-07-25 | Carbide twist drill bit straight forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107433329A true CN107433329A (en) | 2017-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609540.3A Pending CN107433329A (en) | 2017-07-25 | 2017-07-25 | Carbide twist drill bit straight forming method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107433329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318692A (en) * | 2020-04-16 | 2020-06-23 | 上海钨睿新材料科技有限公司 | Cold isostatic pressing process for efficiently producing hard alloy bars |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455278A (en) * | 1980-12-02 | 1984-06-19 | Skf Industrial Trading & Development Company, B.V. | Method for producing an object on which an exterior layer is applied by thermal spraying and object, in particular a drill bit, obtained pursuant to this method |
| US4780274A (en) * | 1983-12-03 | 1988-10-25 | Reed Tool Company, Ltd. | Manufacture of rotary drill bits |
| US20030177866A1 (en) * | 2002-03-22 | 2003-09-25 | Omg Americas, Inc. | Agglomerated stainless steel powder compositions and methods for making same |
| CN101461592A (en) * | 2007-12-20 | 2009-06-24 | 天津市世纪东方建筑景观雕塑技术开发中心 | Method for making health-care jade pendant for protecting heart |
| CN102513540A (en) * | 2011-12-12 | 2012-06-27 | 杨岗 | Manufacturing method of well-drilling drill bit for sintered matrix |
| CN105414547A (en) * | 2015-12-18 | 2016-03-23 | 杨康宁 | Manufacturing method of ultrafine grain single-double straight hole hard alloy round rod |
| CN106182331A (en) * | 2016-07-08 | 2016-12-07 | 四川川庆石油钻采科技有限公司 | A kind of 3D print die manufacture method of diamond-impregnated bit |
| CN106513688A (en) * | 2016-10-31 | 2017-03-22 | 洛阳索莱特材料科技有限公司 | Preparation method of alloy blank for denture processing |
-
2017
- 2017-07-25 CN CN201710609540.3A patent/CN107433329A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4455278A (en) * | 1980-12-02 | 1984-06-19 | Skf Industrial Trading & Development Company, B.V. | Method for producing an object on which an exterior layer is applied by thermal spraying and object, in particular a drill bit, obtained pursuant to this method |
| US4780274A (en) * | 1983-12-03 | 1988-10-25 | Reed Tool Company, Ltd. | Manufacture of rotary drill bits |
| US20030177866A1 (en) * | 2002-03-22 | 2003-09-25 | Omg Americas, Inc. | Agglomerated stainless steel powder compositions and methods for making same |
| CN101461592A (en) * | 2007-12-20 | 2009-06-24 | 天津市世纪东方建筑景观雕塑技术开发中心 | Method for making health-care jade pendant for protecting heart |
| CN102513540A (en) * | 2011-12-12 | 2012-06-27 | 杨岗 | Manufacturing method of well-drilling drill bit for sintered matrix |
| CN105414547A (en) * | 2015-12-18 | 2016-03-23 | 杨康宁 | Manufacturing method of ultrafine grain single-double straight hole hard alloy round rod |
| CN106182331A (en) * | 2016-07-08 | 2016-12-07 | 四川川庆石油钻采科技有限公司 | A kind of 3D print die manufacture method of diamond-impregnated bit |
| CN106513688A (en) * | 2016-10-31 | 2017-03-22 | 洛阳索莱特材料科技有限公司 | Preparation method of alloy blank for denture processing |
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| 中国轻工会总会编: "《轻工业技术装备手册 第2卷》", 30 October 1996, 机械工业出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318692A (en) * | 2020-04-16 | 2020-06-23 | 上海钨睿新材料科技有限公司 | Cold isostatic pressing process for efficiently producing hard alloy bars |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171205 |
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| RJ01 | Rejection of invention patent application after publication |