电火花线切割加工中放电间隙电压变化特性

Gap-voltage Characteristics in WEDM

电火花线切割加工时工具 (电极丝 )和工件之间的放电电压是对放电加工过程进行实时检测的重要参数。本文在理论分析的基础上 ,采用正交试验设计 ,应用极差分析法和方差分析法定量研究了高速走丝电火花线切割加工中放电间隙电压量的变化特性与加工中峰值电流、工件厚度及切割方向之间的关系。

Voltage between tool and workpiece is an important parameter in the on line monitoring of wire electrical discharge machining (WEDM) process. In this paper, on the basis of theoretical analysis, methods of range analysis and variance analysis are separately applied to the quantitative analysis of the relationship among gap voltage, peak current, workpiece thickness and cutting direction in the process. The results obtained are important for the precise monitoring of high speed WEDM.