CN108672672A - A kind of manufacturing method of automobile steering device support base aluminium alloy servo shell - Google Patents
A kind of manufacturing method of automobile steering device support base aluminium alloy servo shell Download PDFInfo
- Publication number
- CN108672672A CN108672672A CN201810569743.9A CN201810569743A CN108672672A CN 108672672 A CN108672672 A CN 108672672A CN 201810569743 A CN201810569743 A CN 201810569743A CN 108672672 A CN108672672 A CN 108672672A
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- China
- Prior art keywords
- product
- support base
- aluminium alloy
- steering device
- device support
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of manufacturing methods of automobile steering device support base aluminium alloy servo shell, include the following steps：1) die casting is opened up after being designed to product, drawing bend is added in the opening of product ontology, wherein the thickness of drawing bend is 1.5 2mm, and ash pit is opened up on drawing bend, then carries out Die Casting by die casting equipment；2) after the completion of die casting, product is cleared up；3) product surface is handled by shot-blasting machine；4) after completing to be surface-treated, surfacing is carried out to product by cutter；After the completion, drawing bend is cut off.By adding drawing bend on product ontology 1, and ash pit is set on drawing bend, ensure the quality inside drawing bend, and then ensure that the intensity of drawing bend meets the power that ontology deforms in processing enough, in addition, it listens overstretching muscle support clamping to compress the power generated to product, prevents from compressing deformation.
Description
Technical field
The present invention relates to automobile production field, more particularly to a kind of system of automobile steering device support base aluminium alloy servo shell
Make method.
Background technology
The existing method for solving aluminum alloy die casting is to carry out shaping after casting, but due to internal stress problem after shaping
It is discharged in ball blast and processing, product is caused to generate stress deformation, off-dimension as stress gradually discharges process, and processed
Shaping easily causes product and damages again afterwards, and cost increases, and quality is not easy to control.There are two types of reasons for the generation of stress, first, when casting
Solidification shrinkage generate stress, second is that the cutting stress of process, and product structure is irregular, application when shaping
Power size be difficult to control, the quality fluctuation of shaping is larger, can not avoid deforming completely.
Invention content
For the above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, discloses a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell, includes the following steps：
1) die casting is opened up after being designed to product, drawing bend is added in the opening of product ontology, wherein is stretched
The thickness of muscle is 1.5-2mm, and ash pit is opened up on the drawing bend, then carries out Die Casting by die casting equipment；
2) after the completion of die casting, product is cleared up；
3) product surface is handled by shot-blasting machine；
4) after completing to be surface-treated, the Working position on product is processed by cutter；After the completion, to the drawing
Muscle is stretched to be cut off.
2. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1,
It is characterized in that, after the completion of product die casting, quenched residual stress is reduced by timeliness null method.
3. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 2,
It is characterized in that, the control of the temperature of the timeliness null method is at 180 DEG C, heating time 6-8 hour.
4. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1,
It is characterized in that, product surface is processed by cutter in step 4) and is divided into roughing and finishing, after the completion of roughing,
Product natural cooling, is then finished, and the surplus after roughing is 1-2mm.
5. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1,
It is characterized in that, the roughness value Ra of cutter is less than 0.4 μm in step 4).
6. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1,
It is characterized in that, the operating temperature in step 4) when tool sharpening is less than or equal to 100 DEG C.
7. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1,
It is characterized in that, in step 1), when drawing bend is arranged in the opening of the product ontology, also adds the reinforcement in the middle
Muscle.
The advantageous effect that the present invention obtains：
(1) by adding drawing bend on product ontology 1, and ash pit is set on drawing bend, is ensured in drawing bend
The quality in portion, and then ensure that the intensity of drawing bend meets the power that ontology deforms in processing enough, in addition, passing through drawing bend
Support clamping compresses the power generated to product, prevents from compressing deformation.
(2) quenched residual stress is reduced by timeliness null method, while increases product product strength and hardness.
Description of the drawings
Fig. 1 is the structural schematic diagram of automobile steering device support base aluminium alloy servo shell of the present invention；
Reference numeral is as follows：
1, product ontology, 2, drawing bend, 3, ash pit, 4, Working position.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
A kind of manufacturing method of automobile steering device support base aluminium alloy servo shell of the present invention, includes the following steps：
Step 1) opens up die casting after being designed to product, and drawing bend 2 is added in the opening of product ontology 1,
In, the thickness of drawing bend is 1.5-2mm, and ash pit 3 is opened up on the drawing bend 2, is then carried out by die casting equipment
Die Casting；Drawing bend thickness is arranged between 1.5-2mm, can ensure the smoothness for ensureing cavity filling process when producing product
Property, in addition ash pit 3 on drawing bend 2 is set, for ensureing the quality inside drawing bend, and then ensure the intensity of drawing bend 2
Meet the power that ontology deforms in processing enough.By test, the drawing bend 2 of 2mm can support the deformation force of 200Mpa.
Preferably, after the completion of product die casting, quenched residual stress is reduced by timeliness null method.Timeliness null method is to production
Product heating and temperature control is at 180 DEG C, heating time 6-8 hour.Quenched residual stress is effectively reduced by timeliness null method, simultaneously
During following process, clamping is carried out to product, product may be made to cause to deform, product can be increased by timeliness null method
Intensity and hardness, by test, the hardness of product ontology 1 can promote 5-10HB, and intensity increases 60Mpa.
After the completion of step 2) die casting, product is cleared up；
Step 3) is handled product surface by shot-blasting machine；
Step 4) is processed the Working position 4 on product by cutter after completing to be surface-treated；After the completion, right
The drawing bend is cut off.Wherein, tool sharpening is divided into roughing and finishing, and roughing carries out 1 surface of product ontology
Rough rapid processing is finished after waiting for after its cooling according to product size；Preferably, after the completion of roughing, pass through
Natural cooling method is cooled down, and the surplus after roughing is 1-2mm, and can effectively eliminate roughing by natural cooling generates
Internal stress, Reducing distortion.When finishing, product polished surface will keep uniform allowance 0.2mm, and cutter is made to add
It is in stable state during work, cutting deformation can be greatly reduced, good suface processing quality is obtained, ensure product
Precision.Wherein, the roughness Ra of cutter is less than 0.4 μm.Before using new knife, gently ground in the forward and backward face of cutter tooth with fine oil stone
Under several, remaining burr and slight hackle mark when sharpening cutter tooth to eliminate.
It, can be by solving problem on deformation to the change of cutter in tool sharpening, the appropriate tool cutting edge angle that reduces can improve
Radiating condition makes the mean temperature of processing district decline.Cutter tooth number is reduced, chip space is increased.Due to aluminum component material plasticity compared with
Greatly, cutting deformation is larger in processing, needs larger chip space, thus bottom of the chip pocket radius should larger, cutter tooth number compared with
It is few preferably, cause the deformation of thin-walled aluminum component part to avoid because chip blocks.
Cutter can cause to wear after carrying out long-time use, and workpiece surface roughness value increases, and cutting temperature rises, and workpiece becomes
Shape increases therewith.Tool wear standard is not more than 0.2mm, otherwise easy tos produce built-up edge.When Tool in Cutting, the temperature of product is not
More than 100 DEG C, to prevent from deforming.
In order to further increase the non-deformability of product ontology 1, drawing bend 2 is added at the middle part of product ontology 1.
The advantageous effect that the present invention obtains：
(1) by adding drawing bend on product ontology 1, and ash pit is set on drawing bend, is ensured in drawing bend
The quality in portion, and then ensure that the intensity of drawing bend meets the power that ontology deforms in processing enough, in addition, passing through drawing bend
Support clamping compresses the power generated to product, prevents from compressing deformation.
(2) quenched residual stress is reduced by timeliness null method, while increases product product strength and hardness.
The foregoing is merely a prefered embodiment of the invention, practical range not for the purpose of limiting the invention；If not departing from this
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (7)
1. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell, includes the following steps：
1) die casting is opened up after being designed to product, adds drawing bend in the opening of product ontology, wherein drawing bend
Thickness is 1.5-2mm, and ash pit is opened up on the drawing bend, then carries out Die Casting by die casting equipment；
2) after the completion of die casting, product is cleared up；
3) product surface is handled by shot-blasting machine；
4) after completing to be surface-treated, the Working position on product is processed by cutter；After the completion, to the drawing bend
It is cut off.
2. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1, feature
It is, after the completion of product die casting, quenched residual stress is reduced by timeliness null method.
3. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 2, feature
It is, the control of the temperature of the timeliness null method is at 180 DEG C, heating time 6-8 hour.
4. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1, feature
It is, product surface is processed by cutter in step 4) and is divided into roughing and finishing, after the completion of roughing, product
Natural cooling is then finished, and the surplus after roughing is 1-2mm.
5. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1, feature
It is, the roughness value Ra of cutter is less than 0.4 μm in step 4).
6. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1, feature
It is, the operating temperature in step 4) when tool sharpening is less than or equal to 100 DEG C.
7. a kind of manufacturing method of automobile steering device support base aluminium alloy servo shell according to claim 1, feature
It is, in step 1), when drawing bend is arranged in the opening of the product ontology, also adds the reinforcing rib in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569743.9A CN108672672B (en) | 2018-06-05 | 2018-06-05 | Manufacturing method of aluminum alloy servo shell of automobile steering gear supporting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810569743.9A CN108672672B (en) | 2018-06-05 | 2018-06-05 | Manufacturing method of aluminum alloy servo shell of automobile steering gear supporting seat |
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| Publication Number | Publication Date |
|---|---|
| CN108672672A true CN108672672A (en) | 2018-10-19 |
| CN108672672B CN108672672B (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810569743.9A Active CN108672672B (en) | 2018-06-05 | 2018-06-05 | Manufacturing method of aluminum alloy servo shell of automobile steering gear supporting seat |
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| CN (1) | CN108672672B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802203A (en) * | 2019-11-29 | 2020-02-18 | 宁波建新华谊铝业有限公司 | Automobile axial booster casing forming die |
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| CN202971186U (en) * | 2012-12-17 | 2013-06-05 | 淮安阳光液压机械有限公司 | Die-casting rough gear pump shaft sleeve |
| CN103223470A (en) * | 2013-04-11 | 2013-07-31 | 芜湖乐锐思信息咨询有限公司 | Aluminum alloy cylinder additionally provided with stiffener |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802203A (en) * | 2019-11-29 | 2020-02-18 | 宁波建新华谊铝业有限公司 | Automobile axial booster casing forming die |
| CN110802203B (en) * | 2019-11-29 | 2024-05-10 | 宁波建新华谊铝业有限公司 | Automobile axial booster shell forming die |
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| Publication number | Publication date |
|---|---|
| CN108672672B (en) | 2020-08-14 |
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