MOSFET高频窄脉冲电解加工工程化电源研制  

Research on the Industrialization Power Supply for MOSFET High Frequency Short Pulse Electrochemical Machining

作　　者：余艳青[1] 王建业[1] 韩冠军[1] 

机构地区：[1]华南理工大学电子与信息学院,广东广州510640

出　　处：《电加工与模具》2005年第2期59-63,共5页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50475046)

摘　　要：气门模具的试生产表明,高频窄脉冲电解加工工艺是提高电解加工精度的有效技术途径。介绍了MOSFET高频窄脉冲电解加工工程化电源的性能指标及样机研制方案,解决了矩形波畸变、反向电流影响、瞬时过压击穿、功率管过热烧损、快速短路保护等研制中的主要技术难题。It has been proved by trial production of the mode of engine valve that high frequency short pulse electrochemical machining(HSPECM) is the available technical approach to enhance the accuracy of ECM. This paper introduced the specification of the power supply of HSPECM, also the basic diagram and the technical critical problem: the deformation of waveform, the tendency of reverse current, the break down of the transient overvoltage, the over heat damage of the power MOSFET, the rapid short circuit protection, etc.

关 键 词：脉冲电解加工 MOSFET 工程化 高频 电源 气门模具 技术途径 加工精度 加工工艺 研制方案 性能指标 反向电流 过压击穿 技术难题 短路保护 试生产 矩形波 功率管 

分 类 号：TG662[金属学及工艺—金属切削加工及机床] TN386.1[电子电信—物理电子学]