一、前言随着我国造船工业的迅速发展,对船用管子的加工,不仅在数量上而且在质量上都提出了越来越高的要求。为了改变弯管工艺的现状,一九七三年武昌船厂研制了一台SKWG-2型数控弯管机,使用效果较好。一九七四年有关部门将数控弯管机列入新工艺推广项目,并决定由江西航海仪器厂和泰州市海光机械厂,分别设计和试制一台结构和性能更加完 I. Introduction With the rapid development of China’s shipbuilding industry, the processing of marine pipelines not only poses increasing and higher requirements both in quantity and in quality. In 1973, Wuchang Shipyard developed a SKWG-2 CNC pipe bender with good effect. In 1974, the relevant departments included numerical control pipe bending machine in the new technology promotion project and decided to design and trial manufacture a structure and performance by Jianghai Navigation Instrument Factory and Taizhou Haiguang Machinery Factory respectively