Abstract
The surface defects generated by EDM of cemented carbide give a harmful influence to prolongation of die life, The effect of surface defects on the transverse rupture strength was studied already, Evaluating the material strength, the fatigue strength is also important, In this paper, the relation is investigated between the fatigue strength of cemented carbide and the machining condition of EDM. Moreover, the fatigue life distribution is obtained from the statistical analysis, The results are as follows:(1) Cemented carbide machined by EDM clearly shows a fatigue behaviour and has a fatigue limit. It indicates a considerable decrease of fatigue limit comparing with that of the ground specimen.(2) The fatigue limit is shown by a curve with both minimum and maximum value as the pulse duration increases.(3) The fatigue life scatters largely and its distribution can be explained by Weibull's equation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of The Japan Society of Electrical Machining Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
