热融自攻连接工艺技术及其在车身轻量化上的应用

Flow drill screw driving technology and its application on lightweight body structure

热融自攻连接工艺是一种使用热融紧固设备和专用的热融自攻钉通过摩擦生热穿透板材然后攻丝螺接紧固的工艺。由于其可以连接钢板、铝合金、复合材料等不同种类的材料,可以实现单面连接,连接强度高,气密性水密性好,工作环境清洁环保,优点非常突出,热融自攻连接工艺在钢铝混合的轻量化车身制造的应用上有着特殊的优势。

Flow drill screw driving process is a technology that uses flow drill screw and special equipment to fasten the plates.The process is through friction heat generation to shape a hole then threading a screw.According to the capability to fasten a variety of different materials and to work with single side,high joint strength and sealing performance,flow drill screw joint technology has a special advantage in the application of steel-aluminum hybrid body structure.