CN105058001A - Method for machining side mould body of aluminum alloy hub casting mould - Google Patents
Method for machining side mould body of aluminum alloy hub casting mould Download PDFInfo
- Publication number
- CN105058001A CN105058001A CN201510418716.8A CN201510418716A CN105058001A CN 105058001 A CN105058001 A CN 105058001A CN 201510418716 A CN201510418716 A CN 201510418716A CN 105058001 A CN105058001 A CN 105058001A
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- China
- Prior art keywords
- side form
- mould
- aluminum alloy
- cast blank
- mould body
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- 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
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
The invention discloses a method for machining a side mould body of an aluminum alloy hub casting mould. The method includes the following steps that firstly, casting blank is selected; secondly, the casting blank is annealed; thirdly, the casting blank is primarily machined and machined into a primary shape of the side mould body; fourthly, thermal treatment is carried out on the side mould body; fifthly, the side mould body is deeply machined, and eccentric machining is carried out on the inner side of the side mould body in the mould opening direction; and sixthly, the side mould body is detected, and whether the size is qualified is detected. According to the method, eccentric machining is conducted on the inner side of the side mould body in the mould opening direction; when the mould deforms due to heating, the eccentric amount of eccentric machining offsets thermal deformation amount as compensation, and the aim of eliminating thermal deformation is achieved; machining is easy, the thermal deformation problem of the mould is effectively solved, abnormal shutdown and mould repair caused by aluminum leaking and flash due to thermal deformation of the mould are reduced, and the material lacking phenomenon caused by thermal deformation of the mould is also reduced.
Description
Technical field
The invention belongs to casting mould technical field, be specifically related to a kind of processing method of aluminum alloy hub casting die side form.
Background technology
At present, aluminum alloy hub casting die of the prior art mainly comprises upper die and lower die and side form, and upper die and lower die and side form form the die cavity closed.During casting aluminium alloy wheel hub, the aluminium liquid of high-temperature fusion is injected die cavity, but afterwards become wheel hub product until aluminium liquid cooling.
In prior art, the inner side of upper die and lower die and side form is all revolving body, and side form is made up of two panels or four.But the side form of mould processes in the cold state, when pouring into a mould, because temperature of aluminum liquid is high, side form wall body has certain thickness, and cause side form wall body internal-external temperature difference comparatively large, inside side form wall body, deflection is greater than outside deflection, causes side form thermal deformation.On the one hand because side form thermal deformation causes matched moulds tight, aluminium is leaked in easy generation or overlap is large, thus causes disorderly closedown and repair a die; On the other hand because side form distortion causes wheel hub wheel rim to lose circle, make to add easily to produce man-hour to lack material or casting skin.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of processing method of aluminum alloy hub casting die side form.
In order to achieve the above object, technical scheme of the present invention is as follows:
The invention provides a kind of processing method of aluminum alloy hub casting die side form, comprise the following steps:
Step one, chooses cast blank;
Step 2, the annealing in process of cast blank, annealed to it by annealed for the cast blank in step one stove, its annealing temperature is 850 ~ 920 DEG C, and annealing time is 3 ~ 5h, is then chilled to 200 ~ 300 DEG C of laggard line spaces in the lehr cold;
Step 3, the preliminary working of cast blank, is processed into the primary shape of side form by the cast blank in step 2 according to the size of wheel hub to be cast, make the inner side of side form form revolving body around its center;
Step 4, the heat treatment of side form, is incubated 1 ~ 2h after the side form in step 3 is first heated to 400 ~ 550 DEG C, and then is heated to 650 ~ 800 DEG C, quenches, return to normal temperature in atmosphere after insulation 20 ~ 40min, then tempering, and temperature is 250 ~ 300 DEG C;
Step 5, the deep processing of side form, makes eccentric processing with die sinking direction in the inner side of side form;
Step 6, whether qualified the detection of side form, detect size.
Eccentric processing is made with die sinking direction in the inner side of side form in the present invention; when mould temperature distortion; as compensation; the offset of eccentric processing and heat distortion amount offset; reach the object eliminating thermal deformation, processing letter, effectively solve mold hot distortion; reduce and be out of shape because of mold hot disorderly closedown that the leakage aluminium, overlap etc. that cause causes and repair a die, also reduce and be out of shape because of mold hot the wheel hub caused and lack material phenomenon.
According to actual conditions, can select, above-mentioned side form is two side mould parts evenly arranged, and the offset of eccentric processing is 0.5 ~ 2mm; Can also select, above-mentioned side form is four side mould parts evenly arranged, and the offset of eccentric processing is 0.1 ~ 0.5mm.
Detailed description of the invention
The following detailed description of the preferred embodiment of the present invention.
In order to reach object of the present invention, a kind of processing method of aluminum alloy hub casting die side form being provided in wherein a kind of embodiment of the present invention, comprising the following steps:
Step one, chooses cast blank;
Step 2, the annealing in process of cast blank, annealed to it by annealed for the cast blank in step one stove, its annealing temperature is 850 DEG C, and annealing time is 3h, is then chilled to 200 DEG C of laggard line spaces in the lehr cold;
Step 3, the preliminary working of cast blank, is processed into the primary shape of side form by the cast blank in step 2 according to the size of wheel hub to be cast, make the inner side of side form form revolving body around its center;
Step 4, the heat treatment of side form, is incubated 1h after the side form in step 3 is first heated to 400 DEG C, and then is heated to 650 DEG C, quenches, return to normal temperature in atmosphere after insulation 20min, then tempering, and temperature is 250 DEG C;
Step 5, the deep processing of side form, makes eccentric processing with die sinking direction in the inner side of side form;
Step 6, whether qualified the detection of side form, detect size.
Eccentric processing is made with die sinking direction in the inner side of side form in present embodiment; when mould temperature distortion; as compensation; the offset of eccentric processing and heat distortion amount offset; reach the object eliminating thermal deformation, processing is simple, effectively solves mold hot distortion; reduce and be out of shape because of mold hot disorderly closedown that the leakage aluminium, overlap etc. that cause causes and repair a die, also reduce and be out of shape because of mold hot the wheel hub caused and lack material phenomenon.
Side form above-mentioned in present embodiment is two side mould parts evenly arranged, and the offset of eccentric processing can be 0.5 ~ 2mm, the preferred 1.4mm of present embodiment.
In order to optimize implementation result of the present invention further, in another embodiment of the invention, on the basis of foregoing teachings, present embodiment provides a kind of processing method of aluminum alloy hub casting die side form, comprises the following steps:
Step one, chooses cast blank;
Step 2, the annealing in process of cast blank, annealed to it by annealed for the cast blank in step one stove, its annealing temperature is 900 DEG C, and annealing time is 4h, is then chilled to 260 DEG C of laggard line spaces in the lehr cold;
Step 3, the preliminary working of cast blank, is processed into the primary shape of side form by the cast blank in step 2 according to the size of wheel hub to be cast, make the inner side of side form form revolving body around its center;
Step 4, the heat treatment of side form, is incubated 1.6h after the side form in step 3 is first heated to 460 DEG C, and then is heated to 710 DEG C, quenches, return to normal temperature in atmosphere after insulation 33min, then tempering, and temperature is 280 DEG C;
Step 5, the deep processing of side form, makes eccentric processing with die sinking direction in the inner side of side form;
Step 6, whether qualified the detection of side form, detect size.
Side form above-mentioned in present embodiment is two side mould parts evenly arranged, and the offset of eccentric processing adopts 0.8mm.
In order to optimize implementation result of the present invention further, in another embodiment of the invention, on the basis of foregoing teachings, present embodiment also provides a kind of processing method of aluminum alloy hub casting die side form, comprises the following steps:
Step one, chooses cast blank;
Step 2, the annealing in process of cast blank, annealed to it by annealed for the cast blank in step one stove, its annealing temperature is 920 DEG C, and annealing time is 5h, is then chilled to 300 DEG C of laggard line spaces in the lehr cold;
Step 3, the preliminary working of cast blank, is processed into the primary shape of side form by the cast blank in step 2 according to the size of wheel hub to be cast, make the inner side of side form form revolving body around its center;
Step 4, the heat treatment of side form, is incubated 2h after the side form in step 3 is first heated to 550 DEG C, and then is heated to 800 DEG C, quenches, return to normal temperature in atmosphere after insulation 40min, then tempering, and temperature is 300 DEG C;
Step 5, the deep processing of side form, makes eccentric processing with die sinking direction in the inner side of side form;
Step 6, whether qualified the detection of side form, detect size.
Side form above-mentioned in present embodiment is four side mould parts evenly arranged, and the offset of eccentric processing can be 0.1 ~ 0.5mm, the preferred 0.3mm of present embodiment.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (3)
1. a processing method for aluminum alloy hub casting die side form, is characterized in that, comprises the following steps:
Step one, chooses cast blank;
Step 2, the annealing in process of cast blank, annealed to it by annealed for the cast blank in step one stove, its annealing temperature is 850 ~ 920 DEG C, and annealing time is 3 ~ 5h, is then chilled to 200 ~ 300 DEG C of laggard line spaces in the lehr cold;
Step 3, the preliminary working of cast blank, is processed into the primary shape of side form by the cast blank in step 2 according to the size of wheel hub to be cast, make the inner side of side form form revolving body around its center;
Step 4, the heat treatment of side form, is incubated 1 ~ 2h after the side form in step 3 is first heated to 400 ~ 550 DEG C, and then is heated to 650 ~ 800 DEG C, quenches, return to normal temperature in atmosphere after insulation 20 ~ 40min, then tempering, and temperature is 250 ~ 300 DEG C;
Step 5, the deep processing of side form, makes eccentric processing with die sinking direction in the inner side of side form;
Step 6, whether qualified the detection of side form, detect size.
2. the processing method of aluminum alloy hub casting die side form according to claim 1, is characterized in that, described side form is two side mould parts evenly arranged, and the offset of described eccentric processing is 0.5 ~ 2mm.
3. the processing method of aluminum alloy hub casting die side form according to claim 1, is characterized in that, described side form is four side mould parts evenly arranged, and the offset of described eccentric processing is 0.1 ~ 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418716.8A CN105058001A (en) | 2015-07-16 | 2015-07-16 | Method for machining side mould body of aluminum alloy hub casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418716.8A CN105058001A (en) | 2015-07-16 | 2015-07-16 | Method for machining side mould body of aluminum alloy hub casting mould |
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| CN201510418716.8A Pending CN105058001A (en) | 2015-07-16 | 2015-07-16 | Method for machining side mould body of aluminum alloy hub casting mould |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010945A (en) * | 2001-06-25 | 2003-01-15 | Chuo Motor Wheel Co Ltd | Device of casting wheel for automobile |
| CN201070660Y (en) * | 2007-07-30 | 2008-06-11 | 华泰铝轮毂（泰安）有限公司 | Novel side mould of low pressure casting hub mold |
| CN101318212A (en) * | 2008-07-08 | 2008-12-10 | 佛山市南海奔达模具有限公司 | Side mould structure of gravity casting hub |
| CN201534183U (en) * | 2009-11-05 | 2010-07-28 | 广东兴发铝业有限公司 | Building industrial aluminum profile extrusion die for flat square tubes with feet |
| CN103567729A (en) * | 2012-08-05 | 2014-02-12 | 韦光东 | Hub extrusion die casting manufacturing process |
-
2015
- 2015-07-16 CN CN201510418716.8A patent/CN105058001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010945A (en) * | 2001-06-25 | 2003-01-15 | Chuo Motor Wheel Co Ltd | Device of casting wheel for automobile |
| CN201070660Y (en) * | 2007-07-30 | 2008-06-11 | 华泰铝轮毂（泰安）有限公司 | Novel side mould of low pressure casting hub mold |
| CN101318212A (en) * | 2008-07-08 | 2008-12-10 | 佛山市南海奔达模具有限公司 | Side mould structure of gravity casting hub |
| CN201534183U (en) * | 2009-11-05 | 2010-07-28 | 广东兴发铝业有限公司 | Building industrial aluminum profile extrusion die for flat square tubes with feet |
| CN103567729A (en) * | 2012-08-05 | 2014-02-12 | 韦光东 | Hub extrusion die casting manufacturing process |
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Application publication date: 20151118 |