国内外轿车覆盖件模具设计概况--中英文翻译
Domestic and foreign car coverage Die Design Overview
A.S. Pouzada, E.C. Ferreira and A.J. Pontes
Abstract : In introducing the current domestic car stamping die design and manufacture of the foundation,
expounded foreign auto company cars panel particular panel of the stamping process and die design status
application of new technologies .
Key words : mechanical manufacturing; Car panel; Stamping technology; Mold Design
1 Introduction
In recent years, China's car market has developed very rapidly in 2002 in car sales more than one million on
the basis of in 2003 to 2 million people relations forward, reaching 1.97 million. However, in the car heat
rapidly warming, had to face the embarrassment of this reality-market best-selling vehicle for the majority of
people must be directly imported from abroad. As domestic car cover mold design and manufacturing
capability on the whole is relatively weak, in order to produce these models, each company had to spend
hundreds of millions or hundreds of billion of overseas procurement die. People with foreign automobile
companies, because the relatively small scale of production, This has resulted in motorcycle smoothing
wood into the mold much higher than foreign cars, This is also produced cars along with high wood
manufacturing into one of the main reasons.
2 Domestic car coverage Die development capability
Major car manufacturers to Die : Die Manufacturing Co. Ltd. of FAW, Dongfeng Motor Die Works, Tianjin
Automobile Die Company, CAC Integration Technology Co., Ltd Nanjing mold equipment, Shanghai Auto
Body 1000 margin Die Company. Most people as a domestic car production and sales of commercial-vehicle
population of Shanghai Limited, also has its own mold design and manufacturing departments ((TMM
Division). Currently, Although domestic Die in Car cover the mold design and manufacturing has a small
capacity, auto plants can undertake some development projects die, but for a very high surface accuracy and
surface quality requirements of the outside panel. It is especially the high-grade cars outside panel, auto
plants rarely die by the will of such domestic development.
Shanghai Public Motors Limited in order to reduce vehicle production costs, but also to increase the
company's core technical competencies, Since the beginning of 2001, set foot in the car stamping die design
and manufacturing fields. 2001 -2002 completed POLO cars manually presses the production line 10 Die
simple parts , the company's quality assurance department as well and put into production. Beginning in
2002, the type of people to the complex, automation, 6000kN the design and manufacture of automatic
production line POLO cars tyres. Die Block (dimensions of the parts, deep drawing deep, complex shape) in
2003, in order to further enhance the design and manufacture of mold ability and level We get involved in
the Multi-Position 20000kN Press and 10000kN automatic production line of die design. Shanghai over the
past number of people in many public spaces 20000kN Press on the use of the mold, all u need to progress,
Die domestic business still lacks the ability to design and manufacture the mold. To this end, we chose
POLO Car column plate mold design. 20000kN Multi-Position Press is the world's most advanced presses,
integration, a very high degree of automation. Of course, this right mold design requirements also increased
accordingly. Parts Feeding height, distance, location manipulator strict requirements ensure that the
manipulator in the course of the campaign and die without interference, so the mold design for space on a
small lot. In considering many factors, we finally completed the whole mold design, CAD state assembly as
shown in figure 1. In addition, we have completed the POLO cars 10000kN automatic production line of the
rear wheel cover mold design, In last year's build on that. These successful completion of the Shanghai
marks the number of people die design capability has reached advanced domestic level. thus for the future of
Shanghai people die Domestic car lay a solid foundation. Nevertheless, with the international advanced
level, the more people there are still gaps, For example, in the car outside cover mold design or from the air.
Die in Car, the most difficult of the outer covering die design, mainly in the following two aspects :
(1)Overcome by the resilience of parts surface deviations
Breakdown, wrinkling, Rebound car is stamping process of forming the main shortcomings, as car outside
panel dimensions. deep drawing shallow, plastic deformation low level generally will not crack, Resilience
as a result of such parts on the manufacturing process and the main problems, it will seriously affect the parts
with the mutual relations. Finite element simulation software in the stamping die design universal
application, has been able to accurately predict rupture and wrinkle-free. thus contribute to the design of
appropriate auxiliary surfaces to improve the process of drawing materials flow, improve parts forming ft.
However, to date) unknown. Most of the finite element software can not be accurately forecast Stamping Die
them removed from the rebound after deformation. Therefore, the external panel dealing with the resilience
of the major changes to rely on the experience of the die face, stamping parts are forming over, to offset
rebound led to the deformation.
(2)Stamping the pick-up
As foreign coverage (eg front cover plate, the roof and fender panels) are subject to complex flanging plastic
or anticipated beading crafts, This makes the design of the mold structure, we must consider the ram after
forming the pick-up, the current people are relying on more complex Wedge institutional linkages to achieve
some of the work to mold parts his resignation to achieve to enable them to pieces. The resulting mold of the
entire structure is very complicated.
3 Foreign coverage Die Design
Currently, foreigners Motors Corporation in order to reduce mold development and manufacturing costs,
shorten production cycles, In addition to cars outside panel of people out of the car Stamping Die Mold were
left to professional companies (such as Fontana Pietro.Kuka.Laepple.Schuler Cartec.Ogi-ha la-Fuji
Techniaca etc.) to design and manufacture, these companies have strong development capabilities, and in
some parts of the manufacturing mold with unique advantages. But as auto plants, taking into account the
development of new models in the process of confidentiality, such as the right-wing boards, suitcase covers,
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DomesticandforeigncarcoverageDieDesignOverviewA.S.Pouzada,E.C.FerreiraandA.J.PontesAbstract:Inintroducingthecurrentdomesticcarstampingdiedesignandmanufactureofthefoundation,expoundedforeignautocompanycarspanelparticularpanelofthestampingprocessanddiedesignstatusapplicationofnewtechnologies.Keywords:...
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作者：闻远设计
分类：课程设计课件资料
价格：20光币
属性：18 页
大小：369.5KB
格式：DOC
时间：2023-08-11
