NDLI: Experimental study on micro electrical discharge machining of porous stainless steel

Content Provider	Springer Nature Link
Author	Wang, Kan Zhang, Qinhe Liu, Qingyu Zhu, Guang Zhang, Jianhua
Copyright Year	2016
Abstract	Porous metals and alloys are ideal lightweight and damping materials which have garnered significant research attention owing to their superior mechanical and metallurgical characteristics. Micro electrical discharge machining (micro EDM) is an alternative method for machining porous metals. In this study, experiments on porous stainless steel (PSS) were conducted to determine the micro EDM performance of austenitic stainless steel (AISI 304) and PSS samples with various porosities and pore sizes. The results were analyzed based on the thermal conduction theory of porous materials. PSS achieved better machining performance overall compared to AISI 304 due to its porosity; further, porosity and pore size were shown to have a significant influence on the machining characteristics of PSS. The larger the porosity and pore size, the higher the material removal rate (MRR) and the lower the relative tool wear ratio (RTWR). Thermal conductivity decreases due to the existence of pores, causing less heat to be lost by heat conduction and more energy to be consumed in order to remove the material. High capacitance in the experimental circuit proved suitable for machining PSS, while high open circuit voltage appeared to be more suitable for machining AISI 304.
Starting Page	2589
Ending Page	2595
Page Count	7
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	90
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-10-19
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrical discharge machining Pore size Porosity Material removal rate Relative tool wear ratio Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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