A Novel Power Supply for High Speed Drilling Electrical Discharge Machining Base on Pulsed Width Modulated
A Novel Power Supply for High Speed Drilling Electrical Discharge Machining Base on Pulsed Width Modulated
复制标题
基于脉宽调制的新型高速钻孔电火花加工电源
DOI：
10.4028/www.scientific.net/msf.626-627.285
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发表时间：
2009-08
期刊：
影响因子：
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中科院分区：
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作者：
研制了一种新型的脉宽调制半桥高速钻削电火花加工电源。该电源具有出色的功能，包括最少的元件数量和固有的保护。该拓扑结构具有节能的特点，并消除了输出大容量电容和限流电阻。腐蚀过程中使用的能量将由半桥网络中的开关绝缘栅双极晶体管（IGBT）控制，并被转移到工具和工件之间的差距。我们提出的拓扑结构的相对刀具磨损和加工速度进行了比较与正常的电源与限流电阻。
In this paper, a novel Pulsed-Width-Modulated (PWM) half-bridge High Speed Drilling Electrical Discharge Machining (HSDEDM) power supply has been developed. This power supply has excellent features that include minimal component count and inherent protection. This topology has an energy conservation feature and eliminates the output bulk capacitors and current limiting resistances. Energy used in the erosion process will be controlled by the switched Insulated Gate Bipolar Transistors (IGBTs) in the half-bridge network and be transferred to the gap between the tool and work-piece. The relative tool wear and machining speed of our proposed topology have been compared with that of a normal power supply with current limiting resistances.