Open AccessEffect of single spark micro-EDM on crater size of different alloys
Author(s) -
Rahul Nadda,
Chandrakant K. Nirala
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/561/1/012032
Subject(s) - brass , electrical discharge machining , materials science , inconel , spark (programming language) , impact crater , process (computing) , thermal , metallurgy , mechanical engineering , computer science , engineering , machining , physics , alloy , astronomy , copper , meteorology , programming language , operating system
Owing to the fact of continuous discharges in RC circuit based μ -EDM process, it is indeed very difficult to analyse difficult-to-control single discharge pulse. This work is thus aimed to develop an innovative technique for generating single discharge in the process. An electrical circuit, parallel to the existing discharge circuit of μ -EDM, has been integrated in-house for the purpose and verified for its applicability over a wide range of metal alloys. For example, single crater diameters of approximately 7 μ m, 10 μ m and 18 μ m have been achieved for stainless steel, Inconel and brass respectively at minimum energy input. The single discharge generatorhas been developed expecting it would be helpful in gathering information such as volume removal by each discharge which will definitely lead to development of a robust thermal model for material removal in μ -EDM.