冷冲模

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冷冲模Heat Treatment of Die and Mould Oriented Concurrent Design
LI Xiong，ZHANG Hong-bing，RUAN Xue-yu，LUO Zhong-hua，ZHANG Yan

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 being，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，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 have 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 manufacturing such as over-hard and-soft and assembly.Traditionally the heat treatment process 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 could 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 considered 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 carri