叠层薄铜板冲裁质量及影响因素研究

发布时间：2018-01-25 12:21

本文关键词： 叠层薄铜板冲裁实验冲裁间隙冲裁质量　出处：《机械强度》2017年01期 　论文类型：期刊论文

【摘要】：叠层金属板材在数控母线冲裁加工过程中的应用越来越广泛,为提高叠层金属板材冲裁件的断面加工质量,因此,对叠层薄铜板的冲裁过程进行研究。叠层金属板材相较于单层金属板材的冲裁过程不尽相同,利用母线加工机床的冲孔工位对叠层薄铜板进行冲裁试验,通过数据采集卡采集压力、位移传感器在不同冲裁间隙下对叠层薄铜板的试验数据,分别得到了冲裁力随冲裁位移变化趋势,以及孔径尺寸、变形塌陷高度与冲裁位移的关系,并对以上数据进行分析对比。研究表明,随着冲裁间隙的减小,冲裁力增大,并且变形塌陷高度、孔径尺寸精度与叠层金属板的所在层数都有很大关系,相比单层冲裁叠层金属薄板在冲裁过程中虽然影响因素更多、出现的问题也更复杂,但通过控制间隙、压边力等条件可以提高叠层金属薄板的冲裁质量。
[Abstract]:Laminated metal sheet is more and more widely used in NC busbar blanking process, in order to improve the cross-section processing quality of laminated metal sheet blanking parts, therefore. The blanking process of laminated thin copper sheet is studied. The blanking process of laminated metal sheet is different from that of single layer metal sheet, and the punching test of laminated thin copper plate is carried out by using the punching position of busbar machine tool. Through the data acquisition card to collect the pressure, displacement sensor in different blanking gap on the laminated thin copper plate test data, the blanking force with the blanking displacement change trend, as well as the size of the aperture. The relationship between the deformation collapse height and the blanking displacement is analyzed and compared. The research shows that the blanking force increases with the reduction of blanking gap and the deformation collapse height. The accuracy of pore size is closely related to the number of layers of laminated metal plates. Compared with single-layer blanking laminated metal sheet, although there are more influencing factors and more complex problems in the process of blanking, the gap is controlled. The blanking quality of laminated metal sheet can be improved under the condition of blank holding force.
【作者单位】：昆明理工大学机电工程学院;昆明昆开专用数控设备有限责任公司;
【基金】：国家自然科学基金项目(51168020)资助~~
【分类号】：TG386.2
【正文快照】： 引言冲裁加工能在一次工作中生产出断面光滑的精密零件。近几年来,通过对冲裁过程的研究以及对材料、润滑剂和压力机的选用,使得冲裁工艺有了飞速的发展,并且广泛应用于航空航天、汽车、电力、生活日用等方面。由于冲裁加工具有高速、高效、高精度、高材料利用率、低成

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