论文部分内容阅读
用于冲压成形的冷轧薄板,多年来一直沿用杯突及单向拉力等传统检验项目,用以评定材料的塑性指标及强度指标。杯突试验是模拟现场生产冲压工艺而设计的一种试验方法,目前各国使用的试验机均为艾利克森(Erichsen)型杯突试验机,它是由压模、垫模、冲头及测量深度标尺等部件构成的。试验时,采用端部为球形的冲头,将夹紧的试样压入模内,由标尺读出杯突深度。以深度数值的大小来判定材料的塑性指标。实践证明,杯突试验作为一项重要的检测手段用于生产和科研,有两点不足之
Cold-rolled sheet for stamping forming, for many years has been used cups and unilateral tensile test items such as the traditional, to assess the material plasticity indicators and strength indicators. Cupping test is a test method designed to simulate the on-site production of stamping process. At present, the testing machines used in various countries are Erichsen cupping testing machines which are composed of die, die pad, punch and measuring Depth scale and other components. Test, the use of the ball end of the punch, the sample will be pressed into the mold clamping, cup reading from the ruler depth. Determine the plastic index of the material with the depth value. Practice has proved that cupping test as an important means of detection for the production and research, there are two deficiencies