Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)
- Volume 3 Issue 3
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- Pages.17-23
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- 2004
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- 1598-6721(pISSN)
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- 2288-0771(eISSN)
Effects of Machining Methods on the Surface Characteristics of Die Steel STD11
금형강 STD11의 가공방법이 표면특성에 미치는 영향
- Published : 2004.09.30
Abstract
The performance and life of a die are influenced by the machining methods. In order to examine the effects of machining methods on surface charactenstics, simple experiments are devised and performed. A die steel STD11, commonly used as a die material in press working, is selected. Three ways of machining methods to manufacture a die are considered. Those are (1) milling and then grinding, (2) wire-cut electric discharge dachining (W-EDM) and (3) heat treatment after W-EDM. The resulting surface roughnesses are measured. Also, the changes of surface microstructures are investigated using the scanning electron microscope(SEM) with energy dispersive X-ray spectrometer(EDS) and the results are discussed in details.