磁控等离子体弧金属板件柔性成形技术研究  

Research on Flexible Forming of Sheet Metal Using Plasma Arc with Magnetic Control

作　　者：郭彦肖[1] 徐文骥[1] 

机构地区：[1]大连理工大学机械工程学院,辽宁大连116024

出　　处：《电加工与模具》2006年第2期31-34,共4页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50375024)

摘　　要：等离子体弧柔性成形技术(FFUPA)是近年来发展起来的金属板件成形技术,利用该技术得到表面光滑、弯曲曲率小的工件较困难。为解决此关键技术问题,由等离子体的“与磁场可作用性”这一特点,利用低强度的均匀磁场来控制电子运动和增加在等离子体系统(磁控装置)中电子运动路径的长度,分散单位时间内单位面积上的等离子体数量,从而得到表面较光滑、弯曲曲率较小的工件。通过交变磁场再约束等离子体弧柔性成形实验,研究了等离子体弧在交变磁场中的特性,分析了加入交变磁场对板件弯曲成形表面质量、弯曲成形速度的影响规律。Flexible forming technique of sheet metal using plasma arc is developed as one of forming of sheet metal technique in the last three years. It is difficult to get metal workpieces with slick surface and small curvature. To solve this key technology problem,according to the characteristic that plasma arc can interacts with magnetic field,alternating magnetic field is imported to control the locomotion of plasma and increase the length of plasma＇s movement path,disperse the amount of plasma in unit area and unit time, thus metal workpieces with slick surface and small curvature bending is obtained. Through experiment of flexible forming using plasma arc with alternating magnetic confinement, the properties of the magnetic confinement on the plasma arc are studied, the effects of alternating magnetic field on the surface quality and forming speed of sheet metal are analyzed.

关 键 词：交变磁场 等离子体弧 柔性成形 FFUPA 

分 类 号：TG664[金属学及工艺—金属切削加工及机床]