Mould design basically includes extrusion die to provide design of design, forging die design, die design, the model that note model to wait. The article showed CAE with example (computer assists a project) the direct action that the technology designs medium application and CAE technology to the mould in of all kinds mould. Mould industry is the main base industry of national economy, in the product such as car, electron, appearance, aviation and home appliance, the component that relies on mould figuration occupies 60%~80% , the design of the mould and production water collimation receive the quality that affects a product and manufacturing efficiency. The mould designed a technology to also experience the rapid development process of CAD/CAM/CAE, at present CAE technology gets wide application and development stage by stage, appeared very multi-purpose the CAE business software that designs at directive mould, be like Dynaform, deform, autoform, superform, superforge, pam-stamp, fastform, fastBlank, hyperform, fastamp, moldflow, polyflow, these software basically are to figuration process undertakes fictitious try a model, in the mould design domain produces main direct effect. The application in extruding mould and technology design pursues the 1 equivalent meet an emergency when squeezing imitate process to end is in bulk figuration craft is fictitious in trying a model, those who use morer is Deform software, deform is base at finite yuan craft emulates a system, with at the analysis metallic figuration reachs his all sorts of figuration craft of relevant industry. Through be on computer analogy is whole machine a process, directive engineer and design personnel design a pattern, reduce high spot to try modular cost, raise industry pattern to design efficiency thereby, reduce production and cost of material, shorten the research development cycle of new product. Forging, pull deep, extruding, rolling, come back pressure it is OK to wait for a variety of plasticity figuration crafts undertake on computer fictitious try a model, and still can undertake mould stress, flexibility is out of shape reach damaged analysis. Graph the 2 equivalent stress when closing crowded end repeatedly distributing to design a process in extruding craft mould in, can CAE of have the aid of emulates what the technology implements extruding technology to make and the design of crucial mould dimension. Graph 1 to the graph 3 be some product crowded, positive and negative is compound the crowded, imitate that pushs technology instead is calculated result. Undertake optimizing designing to original craft and mould through using CAE technology, obtained favorable result. Graph distributinging graph is in the stress of 3 equivalent meet an emergency when squeezing an end instead the application in die design is in board makings figuration is fictitious in trying a model, dynaform is used morer. Dynaform goes to the lavatory to be used easily and include a lot of automatic functions, can solve the most complex figuration problem conveniently. Dynaform includes function of complete CAD, pre-treatment, analysis function and after to handle a function. Dynaform supports Windows, LINUX and UNIX operating system, provided a function for the user all ready and the solution with low price. Apply process of figuration of punch of CAE technology imitate to coach the mould is designed, can save cost trying a model greatly, raise a mould to design quality. Graph sketch map of pattern of 4 aircrafts spare parts pursues the punch blemish that 5 first try design is in die design, likewise OK CAE of have the aid of emulates a technology to achieve pair of craft and mould structure improve with optimize. Graph the 4 some aircraft spare partses that produce to use punch technology. If the graph is shown 5 times, can discover through be being emulated to the CAE of original figuration craft, local district does not have material sufficient drawing, and another area are decreased badly however thin, bring about figuration appear to taste interrogatory problem apparently. Be aimed at these figuration blemish, through modifying mould structure, decorate in proper place play the change that delay muscle local material flows, make material flows thereby hasten Wu Junyun, eliminated figuration flaw. Graph 6 with the graph the 7 analytic results that revise mould structure after namely, basically obtained better position. Graph the product reduction of 6 final designs pursues graph of 7 figuration limit uses Dynaform software fictitious try a model, can reduce a mould to design the time trying a model in developing a process and charge greatly. It can forecast board makings the figuration function in figuration process, be like rip, corrugate, decrease thin, impress and spring back phenomenon, provide guidance to mould design thereby. The application in design of Injection Mold Tooling is in technology of the CAE that note model, the MPI that what use morer at present is Moldflow company (Moldflow Plastics Insight) . This software is OK imitate is whole Injection Molding process, optimize control a design, mould design and Injection Molding process, undertake plastic flow imitate is mixed thermoplastic plastic stuff and protect press process imitate. Can optimize optimal runner position at the same time, undertake parameter is optimized shaping wait evenly with flow path, OK still even imitate pressure control and bulk pilot gas assist Injection Molding process. In design of Injection Mold Tooling, likewise OK CAE of have the aid of emulates a technology to achieve pair of craft and mould structure improve with optimize. Graph 8 to the graph 10 it is CAE technology the application in coaching plastic product and mould are designed. Graph the 8 initiative designs that are a product, the deflection that emulates direction of Z of technical computation product through CAE is 18. 8mm, through adjusting craft and mould structure, deflection can reduce 3mm, reduce deflection apparently very hard from beginning to end. Most after adopts the design that changes a product, deflection got be reducinged apparently, change product after, the biggest deflection of Z direction is 7.
1mm, such result user basically can be accepted. Graph 9 it is the product structure plan that changes after, rib increased in the reverse side of the product. Graph 10, graph the 11 deflection that are the after before the product is changed. Graph 9 products change the initiative blueprint of 8 products the design application current situation of after and foreground CAE technology are the indispensable technology in prospective mould technology, CAE analysis technology is direction of a when prospective mould design develops significant progress, and will get applied extensively. But CAE technology is designed in the mould at present also existing in the process a few not allow evasive problem and difficult problem. Graph the deflection of 10 initiative products pursues on one hand, the application of CAE technology did not get sufficient recognition, certain resistance is encountered in CAE technology process is advanced in the enterprise. At present design of most industry pattern relies on experience completely. On the other hand, personnel of technology of CAE technology project is lacked relatively. Applied CAE technology has very high demand to project technology personnel, can using software only is far insufficient, still must have solid academic knowledge and rich practice experience. The person that has capacity of this a few respects at the same time is very few. Graph the ceaseless development that 11 products change the deflection CAE of after to emulate a technology and the close together union of its and mould design technology will design a method to produce main effect to the mould. Through the emulation that falls in all sorts of operating mode to the mould, obtain all sorts of information of the mould, the understanding that will make the architect reachs figuration craft to the mould is more thorough, thereby efficiency of high design of conduce Wu Di, reduce risk of research and development, drive a mould to design technical progress. CNC Milling
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