Towards the effective tool wear control in micro-EDM milling

被引:54
作者
Bissacco, G. [1 ]
Valentincic, J. [2 ]
Hansen, H. N. [3 ]
Wiwe, B. D. [3 ]
机构
[1] Univ Padua, Dept Innovat Mech & Management DIMEG, I-35131 Padua, Italy
[2] Univ Ljubljana, Fac Mech Engn, Lab Alternat Technol, Ljubljana 61000, Slovenia
[3] Tech Univ Denmark, Dept Mech Engn, DK-2800 Lyngby, Denmark
关键词
Micro-electrical discharge machining; Tool wear; Pulse detection; COMPENSATION;
D O I
10.1007/s00170-009-2057-0
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The electrode wear in micro-electrical discharge milling (micro-EDM milling) is one of the main problems to be solved in order to improve machining accuracy. This paper presents an investigation on wear and material removal in micro-EDM milling for selected process parameter combinations typical of rough and finish machining of micro-features in steel. The experiments were performed on state-of-the-art micro-EDM equipment. Based on discharge counting and volume measurements, electrode wear per discharge and material removal per discharge were measured for several energy levels. The influence of the accuracy of volume measurements on the electrode wear per discharge and on the material removal per discharge are discussed, and the issues limiting the applicability of real time wear sensing in micro-EDM milling are presented.
引用
收藏
页码:3 / 9
页数:7
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