为了保证管道在施工现场对接时对焊质量达到国际标准 ,管端焊缝修磨是制管企业保证产品质量必不可少的工序。目前国内制管企业普遍采用人工修磨钢管管端焊缝。这种加工方法存在着诸多不利因素 :1生产效率低。在正常情况下 ,修磨 Φ1 0 1 6mm钢管上一条 1 5 0 mm长的螺旋焊缝需 In order to ensure that the welding quality of the pipeline meets the international standards when it is docked on the construction site, the pipe end weld repair is an indispensable procedure for the pipe manufacturing enterprise to ensure product quality. At present, the domestic pipe manufacturers generally use artificial grinding pipe end weld. There are many disadvantages to this processing method: 1 Low production efficiency. Under normal circumstances, repair a Φ1 0 16mm steel pipe on a 150mm long spiral weld required