CN104439977A - Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts - Google Patents
Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts Download PDFInfo
- Publication number
- CN104439977A CN104439977A CN201410723185.9A CN201410723185A CN104439977A CN 104439977 A CN104439977 A CN 104439977A CN 201410723185 A CN201410723185 A CN 201410723185A CN 104439977 A CN104439977 A CN 104439977A
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- China
- Prior art keywords
- symmetrical
- parts
- aluminum alloy
- skirtboard
- casting aluminum
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S5/00—Other constructional members not restricted to an application fully provided for in a single class
Abstract
The invention discloses a rapid manufacturing method of symmetric apron board type casting aluminum alloy parts. The rapid manufacturing method comprises the following specific steps: first step: casting parts: arranging casting extended structures on the edges of large openings according to the structural characteristics of the parts, and then casting the parts; second step: heat treating the cast parts; third step: machining the outlines of the parts. The parts can be quickly processed under the premise of lacking the support of tooling aids, thus the manufacturing process of the parts can be effectively shortened; meanwhile, the production cost of the parts is reduced.
Description
Technical field
Basis is practical belongs to Machining Technology field, and relate to a kind of method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts, it is applicable to the quick manufacture of Aero-Space skirt plate parts.
Background technology
At present, Birmasil skirt plate parts more and more appears in missile armament, and it has thin-walled, big uncork, baroque feature, manufactures difficulty of processing very big.Due to the contour structures feature that it is more complicated, during developing, usually adopt the method for casting shaping, then adopt machine adding method to process external surface, to reach final designing requirement.
Present stage, such part was in manufacture process, and heat treatment stages designs heat treatment tooling usually, prevents distortion; Mechanical machining phase design machining frock is with Set and Positioning.This method needs auxiliary mould two or three cover at least of design, and tens of cover at most, has had a strong impact on the Development Schedule of type product.
This method devises technique according to design of part feature and lengthens, just effectively heat treatment deformation can be prevented under the prerequisite not needing auxiliary mould, simultaneously as the clamping centering benchmark of machining, in whole process, all do not need design specialized tooling auxiliary tool, thus shorten the manufacturing cycle of product.
Summary of the invention
The object of this invention is to provide a kind of method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts, can realize under the prerequisite lacking tooling auxiliary tool support, rapid processing completes part, effectively can shorten the manufacture process of part; Save part production cost simultaneously.
In order to reach above-mentioned purpose of design, the technical solution used in the present invention is as follows:
A method for fast mfg for symmetrical skirtboard class casting aluminum alloy parts, concrete steps are:
The first step: mo(u)lded piece: according to design of part feature, casting elongate structure is set at the edge at big uncork place, then casts;
Second step: by the part heat treatment of having cast;
3rd step: machined part profile.
Preferably, in described step one, elongate structure and the original edge of part are in same plane, and form a semi-enclosed turnup structure with former part, supporting plane when making this elongate structure not only can be used as heat treatment, also can be used as datum plane during machining.
Preferably, in described step 2, symmetrical two pieces part symmetry is placed, and clamps the flange of symmetrical member elongate structure, make two symmetrical members form a totally enclosed structure.
Preferably, in described step 3, first elongate structure processed smooth, as the machining benchmark of part, then with this origin reference location clamping, processing parts profile, removes elongated portion after shaping again, thus completes whole part.
More preferably, in described step 3, for reducing to remove the part deformation amount after lengthening, this elongate structure need be processed some stress relief grooves when roughing.
The beneficial effect of the method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts of the present invention is: can realize under the prerequisite lacking tooling auxiliary tool support, rapid processing completes part, effectively can shorten the manufacture process of part; Save part production cost simultaneously.
The method effectively can ensure the rapid processing of thin-walled, big uncork skirt plate parts.It applies to solve a very large difficult problem in actual production, has very strong application prospect.
Reserved technique is adopted to lengthen the mode controlling heat treatment deformation, rely on technique lengthening as the mode of machining benchmark plane, technique does stress groove to discharge the mode of Stress Control distortion on lengthening, under the prerequisite of effective controlling distortion, save the manufacture of heat treatment tooling, save the manufacture of machining tooling auxiliary tool, shorten the product manufacturing cycle, apply to developing products initial stage and can produce very large economic benefit, there is very strong application prospect.
Accompanying drawing explanation
Fig. 1 a is the left symmetrical member of rear skirtboard;
Fig. 1 b is the right symmetrical member of rear skirtboard;
Fig. 2 a is that the technique of the left symmetrical member machining design of rear skirtboard lengthens;
Fig. 2 b is that the technique of the right symmetrical member machining design of rear skirtboard lengthens;
When Fig. 3 a is the casting of rear skirtboard left symmetrical member, reserved technique lengthens;
When Fig. 3 b is the casting of rear skirtboard right symmetrical member, reserved technique lengthens;
Fig. 4 utilizes technique to lengthen and is combined into full-closed structure when being heat treatment;
Fig. 5 is the stress groove of machining roughing design.
Detailed description of the invention
Below in conjunction with accompanying drawing, optimum implementation of the present invention is described in further detail.
The method for fast mfg of described symmetrical skirtboard class casting aluminum alloy parts, adopt the method for reserved elongate structure, part strength during raising heat-treatment quenching, controlling distortion, simultaneously for machining provides clamping benchmark, before removal elongate structure, do stress groove thereon to discharge stress, control to remove part deformation when lengthening.
Concrete steps are:
The first step: mo(u)lded piece: according to design of part feature, casting elongate structure is set at the edge at big uncork place, then casts;
Described elongate structure need according to part machined and casting Technology Design.
This elongate structure and the original edge of part are in same plane, and form a semi-enclosed turnup structure with former part, and supporting plane when making this elongate structure not only can be used as heat treatment, also can be used as datum plane during machining.
Second step: the part heat treatment by having cast: symmetrical two pieces part symmetry placed, and use the blue flange waiting accessory clamping symmetrical member of card, makes two symmetrical members form a totally enclosed structure, the intensity of part during to improve heat treatment.
3rd step: machined part profile: first elongate structure processed smooth, as the machining benchmark of part, then with this origin reference location clamping, processing parts profile, removes elongated portion after shaping again, thus completes whole part.
For reducing to remove the part deformation amount after lengthening, this elongate structure need be processed some stress relief grooves when roughing and being convenient to discharge internal stress, reducing the deflection of part.
Concrete case:
Tested parts is the rear skirtboard part in certain engineering, and this part material is ZL114A, and product structure is symmetrical big uncork thin-walled parts, wall thickness 3mm.See accompanying drawing 1a, b.
(1) design of casting technique lengthening:
The design that casting technique lengthens, is shown in accompanying drawing 3a, b.
Principle: according to opening parts character, makes technique and lengthens at edge of opening place, this technique lengthens and is in same plane with part original edge flange, and forms a semi-enclosed structure with original plane.
Key point, the effect that when considering that follow-up Quenching Treatment and machine add process, technique lengthens, the casting technique made lengthens should become perpendicular or parallel relation with part original structure, symmetrical two pieces part can be formed a totally enclosed structure when Quenching Treatment, and when machining as datum plane.
(2) make mechanical processing technique to lengthen:
The mechanical processing technique of making lengthens, and sees accompanying drawing 2a, b.
Principle: according to the casting elongate structure made, and according to design of part feature, first process former part edge of opening technique flange and casting technique lengthens flange in the machine added-time, make the flange at two places be in same plane, as datum plane during turn-over processing parts profile and clamping plane.
(3) method of Quenching Treatment:
The method of Quenching Treatment, is shown in accompanying drawing 4.
Symmetrical two upper and lower overlaps of part are re-used card orchid and compress elongate structure, form a totally enclosed structure by principle: lengthen according to the technique made.Increase the rigidity of part when Quenching Treatment, reduce quenching distortion.
Key point, after symmetrical two pieces part adds elongate structure, places up and down and can form a totally enclosed structure, effectively can prevent distortion when Quenching Treatment.
(4) stress relief grooves is processed during machining roughing:
The stress relief grooves processed, is shown in accompanying drawing 5.
Key point: during machining roughing, spacing 100mm makes the wide stress relief grooves of 10mm, prevents fine finishining final stage from removing technique lengthening and causes part deformation.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, and being convenient to these those skilled in the art can understand and apply the invention, and can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, some simple deduction or replace can also be made without departing from the inventive concept of the premise, and need not through performing creative labour.Therefore, those skilled in the art are according to announcement of the present invention, and the simple modifications made the present invention all should within protection scope of the present invention.
Claims (5)
1. a method for fast mfg for symmetrical skirtboard class casting aluminum alloy parts, is characterized in that: concrete steps are:
The first step: mo(u)lded piece: according to design of part feature, casting elongate structure is set at the edge at big uncork place, then casts;
Second step: by the part heat treatment of having cast;
3rd step: machined part profile.
2. the method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts according to claim 1, it is characterized in that: in described step one, elongate structure and the original edge of part are in same plane, and form a semi-enclosed turnup structure with former part, supporting plane when making this elongate structure not only can be used as heat treatment, also can be used as datum plane during machining.
3. the method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts according to claim 1, it is characterized in that: in described step 2, symmetrical two pieces part symmetry is placed, and clamps the flange of symmetrical member elongate structure, make two symmetrical members form a totally enclosed structure.
4. the method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts according to claim 1, it is characterized in that: in described step 3, first elongate structure is processed smooth, as the machining benchmark of part, then with this origin reference location clamping, processing parts profile, removes elongated portion after shaping again, thus completes whole part.
5. the method for fast mfg of symmetrical skirtboard class casting aluminum alloy parts according to claim 4, is characterized in that: in described step 3, for reducing to remove the part deformation amount after lengthening, this elongate structure need be processed some stress relief grooves when roughing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410723185.9A CN104439977A (en) | 2014-12-03 | 2014-12-03 | Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts |
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| CN201410723185.9A CN104439977A (en) | 2014-12-03 | 2014-12-03 | Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306031A (en) * | 2019-06-11 | 2019-10-08 | 江西昌河航空工业有限公司 | A method of reducing metal plate class angle section part heat-treatment distortion |
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| CN102788719A (en) * | 2011-05-19 | 2012-11-21 | 江苏迅隆科技发展有限公司 | Method for manufacturing compressed aluminum alloy housing sample |
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| CN103143885A (en) * | 2013-02-07 | 2013-06-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing split thin-walled parts |
| CN103182633A (en) * | 2013-03-08 | 2013-07-03 | 云南维克达汽车零部件有限公司 | Split-type automobile rear-axle housing assembly welding method |
| CN103624497A (en) * | 2013-11-27 | 2014-03-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining large-radius thin-wall semi-annular part |
| CN103831579A (en) * | 2012-11-20 | 2014-06-04 | 北京航星机器制造公司 | Machining method of complex casting with non-circular cross section |
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2014
- 2014-12-03 CN CN201410723185.9A patent/CN104439977A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3595712A (en) * | 1968-10-08 | 1971-07-27 | United Aircraft Corp | Processing of aluminide-coated nickel-base superalloys |
| CN101648329A (en) * | 2008-08-15 | 2010-02-17 | 六和轻合金（昆山）有限公司 | Manufacturing process of aluminum alloy wheel |
| CN102788719A (en) * | 2011-05-19 | 2012-11-21 | 江苏迅隆科技发展有限公司 | Method for manufacturing compressed aluminum alloy housing sample |
| CN102588190A (en) * | 2012-03-07 | 2012-07-18 | 江西泰豪特种电机有限公司 | Anti-deformation processing method for split combined steel plate rolled parts |
| CN103831579A (en) * | 2012-11-20 | 2014-06-04 | 北京航星机器制造公司 | Machining method of complex casting with non-circular cross section |
| CN103056606A (en) * | 2012-11-30 | 2013-04-24 | 中国航空工业集团公司洛阳电光设备研究所 | Machining method of thin-wall semi-shell part |
| CN103143885A (en) * | 2013-02-07 | 2013-06-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing split thin-walled parts |
| CN103182633A (en) * | 2013-03-08 | 2013-07-03 | 云南维克达汽车零部件有限公司 | Split-type automobile rear-axle housing assembly welding method |
| CN103624497A (en) * | 2013-11-27 | 2014-03-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining large-radius thin-wall semi-annular part |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110306031A (en) * | 2019-06-11 | 2019-10-08 | 江西昌河航空工业有限公司 | A method of reducing metal plate class angle section part heat-treatment distortion |
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Application publication date: 20150325 |