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                                  2. 公司新闻  
                                    当?#25300;?#32622;:首页 > 新闻中心 > 公司新闻
                                    冷拔管的加工
                                    作者:

                                    滚压加工是一种无切屑加工,在常温下利用金属的塑性变形,使工件表面的微观不平度辗平从而达到改变表层结构、机械特性、形状和尺寸的目的。因?#33487;?#31181;方法可同时达到光整加工及强化两种目的,是磨削无法做到的。无论用何种加工方法加工,在零件表面总会留下微细的凸凹不平的刀痕,出现交错起伏的峰谷现象,滚压加工原理:它是一种压力光整加工,是利用金属在常温状态的冷塑性特点,利用滚压工具对工件表面施加一定的压力,使工件表层金属产生塑性流动,填入到原始残留的低凹波谷中,而达到工件表面粗糙?#21040;?#20302;。由于被滚压的表层金属塑性变形,使表层组织冷?#19981;?#21644;晶粒变细,形成致密的纤维状,并形成残余应力层,硬度和强度提高,从而改善了工件表面的耐磨性、耐蚀性和配合性。滚压是一种无切削的塑性加工方法。

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