不同材料的板件连接技术对开发钢铝一体化车身结构至关重要。机械连接技术是连接异种金属的新方法,通过试验方法,研究影响机械连接接头剪切强度与剥离强度的因素,这些因素包括冲头尺寸、异种金属板材的放置次序、板材厚度、连接接头直径等,得到了接头最大剪切力与最大剥离力随这些因素变化的规律,这些因素的影响从大到小依次为冲头尺寸、异种金属板材的放置次序、板材厚度、连接接头直径。研究结果为设计出优质的钢与铝机械连接接头提供了依据。 Different materials of the plate connection technology for the development of integrated steel and aluminum body structure is essential. Mechanical connection technology is a new way to connect dissimilar metals. The factors that affect the shear strength and peel strength of mechanical connectors are studied through the test methods. These factors include punch size, placement of dissimilar metal sheets, sheet thickness, diameter of connector, etc. , The maximum shear force and the maximum peel force of the joint were obtained with the change of these factors. The descending order of these factors is the punch size, the placing sequence of the dissimilar metal sheet, the thickness of the sheet and the diameter of the joint. The results provide the basis for the design of high quality steel and aluminum mechanical connectors.