Typical metrology of micro-hole arrays made in stainless steel foils by two-stage micro-EDM

被引:14
作者
Allen, DM [1 ]
Almond, HJA [1 ]
Bhogal, JS [1 ]
Green, AE [1 ]
Logan, PM [1 ]
Huang, XX [1 ]
机构
[1] Cranfield Univ, Sch Ind & Mfg Sci, Bedford, England
来源
CIRP ANNALS 1999 - MANUFACTURING TECHNOLOGY | 1999年
基金
英国工程与自然科学研究理事会;
关键词
micro-EDM; metrology; bore surface quality;
D O I
10.1016/S0007-8506(07)63147-3
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Two-stage micro-EDM utilises one machine to fabricate electrodes and a second machine to manufacture holes. The diameter and taper of a hole are dependent on the accuracy of the electrode fabrication which has now been quantified. The accuracy of hole positioning has also been measured using commercial equipment in a novel application. The surface roughness and uniformity of the internal surfaces of the holes (typically 50 mu m: in diameter) have been examined using a novel method not involving cross-sectioning. Random surface microcracks appear to be metallurgy-dependent, not process related.
引用
收藏
页码:127 / 130
页数:4
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