1、Heat Treatment of Die and Mould Oriented Concurrent Design Abstract: Many disadvantages exist in the traditional die design method which belongs to serial pattern. It is well known that heat treatment is highly important to the dies. A new idea of concurrent design for heat treatment process of die
2、and mould was developed in order to overcome the existent shortcomings of heat treatment process. Heat treatment CAD/CAE was integrated with concurrent circumstance and the relevant model was built. These investigations can remarkably improve efficiency, reduce cost and ensure quality of R and D for
3、 products. Key words:die design; heat treatment; mould Traditional die and mould design,mainly by experience or semi experience, is isolated from manufacturing process.Before the design is finalized, the scheme of die and mould is usually modified time and again, thus some disadvantages come into be
4、ing,such as long development period,high cost and uncertain practical effect.Due to strong desires for precision,service life,development period and cost,modern die and mould should be designed and manufactured perfectly.Therefore more and more advanced technologies and innovations have been applied
5、,for example,concurrent engineering,agile manufacturing virtual manufacturing,collaborative design,etc. Heat treatment of die and mould is as important as design,manufacture and assembly because it has a vital effect on manufacture, assembly and service life Design and manufacture of die and mould h
6、ave progressed rapidly, but heat treatment lagged seriously behind them As die and mould industry develops, heat treatment must ensure die and mould there are good state of manufacture, assembly and wear resistant properties by request. Impertinent heat treatment can influence die and mould manufact
7、uring such as over hard and soft and assembly Traditionally the heat treatment process 1 was made out according to the methods and properties brought forward by designer This could make the designers of die and mould and heat treatment diverge from each other, for the designers of die and mould coul
8、d not fully realize heat treatment process and materials properties, and contrarily the designers rarely understood the service environment and designing thought. These divergences will impact the progress of die and mould to a great extent. Accordingly, if the process design of heat treatment is co
9、nsidered in the early designing stage, the aims of shortening development period, reducing cost and stabilizing quality will be achieved and the sublimation of development pattern from serial to concurrent will be realized Concurrent engineering takes computer integration system as a carrier ,at the
10、 very start subsequent each stage and factors have been considered such as manufacturing, heat treating, properties and so forth in order to avoid the error The concurrent pattern has dismissed the defect of serial pattern,which bring about a revolution against serial pattern In the present work the
11、 heat treatment was integrated into the concurrent circumstance of the die and mould development , and the systemic and profound research was performed 1 Heat Treatment Under Concurrent Circumstance The concurrent pattern differs ultimately from the serial pattern(see Fig 1).With regard to serial pa
12、ttern, the designers mostly consider the structure and function of die and mould, yet hardly consider the consequent process, so that the former mistakes are easily spread backwards Meanwhile,the design department rarely communicates with the assembling , cost accounting and sales departments These
13、problems certainly will influence the development progress of die and mould and the market foreground Whereas in the concurrent pattern, the relations among departments are close, the related departments all take part in the development progress of die and mould and have close intercommunion with purchasers This is propitious to elimination of the conflicts between departments, increase the efficiency and reduce the cost