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板料冲压在整个国民经济中占有愈来愈重要的地位。据统计,工业发达国家中,轧制品为全部钢材生产的四分之三,而薄钢板又约占轧制品的30％左右;在国民生产总值中,与冲压生产有关的产品,约占总值的四分之一。近二十年来,国外广泛采用坐标网应变分析技术和成形极限图,使冲压生产这门过去主要靠经验判断的生产工艺转变为能作定性的科学分析的学科。数字和图表代替以往的臆断和猜测,因而在生产中收到巨大的经济效益。为了提高我国板料冲压的生产水平,
Sheet metal stamping in the entire national economy occupy more and more important position. According to statistics, of the industrialized countries, the rolled products are three-quarters of the total steel production, while the thin steel plates account for about 30% of the rolled products. Among the gross national product, the products related to the stamping production are about A quarter of the total value. In the recent two decades, the coordinate network strain analysis technology and the forming limit map have been widely used in foreign countries, so that the production process of stamping production, which mainly depends on experience, was transformed into a discipline capable of making qualitative scientific analysis. Numbers and charts instead of the previous assumptions and speculation, which received huge economic benefits in the production. In order to improve China’s sheet metal stamping production level,