以往,随着交通工具的机械化潮流,作为交通运输工具汽车的生产是大批量地生产同一车种。这对日本经济的发展,曾起了重大作用。但现在,迎来了生活安定和物质丰富的时代,每个人都在生活中追求变化,社会正在向高级化、差别化,个性化方向发展。用户对汽车的要求也变得多种多样。汽车行业的冲压加工也鲜明地反映了这种趋势,大型板件曾经是有代表性的大批量冲件,现在也在向多品种、少批量生产的方式演变。目前,面临的大量课题是缩短周期、降低 In the past, with the mechanization of transportation, the production of vehicles as vehicles for transportation was to produce the same vehicle in large quantities. This played a significant role in Japan’s economic development. Now, however, usher in an era of stability and material abundance. Everyone is pursuing change in his life. The society is moving toward a higher level of differentiation and personalization. The demands of the user on the car have also become diverse. Stamping in the automotive industry also clearly reflects this trend. Large-scale panels, once a representative high-volume stamping, are now evolving to multi-species, less-volume production. At present, a large number of issues are to shorten the cycle and reduce