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前言 自第二次世界大战以来,机械制造以钢铁为材料,以切削为加工手段。然而用切削加工制造产品,把大量金属变成铁屑,既浪废材料又消耗能源,因此,现代机械制造业中,采用少切削或无切削方法是重要的途径,塑性加工将成为主要的方法。根据国际生产工程研究会(CIRP)的预测到2000年,机械零件的75％粗加工和50％的精加工将由塑性加工来完成。所以模具对现代工业生产的作用日益突出。
Foreword Since the Second World War, machinery manufacturing has been made of steel and used as a cutting tool. However, using cutting to make products that convert large amounts of metal into scrap iron, which consumes both waste materials and consume energy, the use of less or no cutting methods in modern machinery manufacturing is an important avenue and plastic processing will be the main method . According to the International Society of Production Engineering Research (CIRP), by the year 2000, 75% rough machining of machine parts and 50% finishing will be done by plastic processing. Therefore, the role of mold on modern industrial production has become increasingly prominent.