Experimental Investigation _ Magnetic Assisted Electro Discharge Machining

International Conference on Recent Advances in Materials & Manufacturing Technologies

Kesava Reddy, Chirra^1 ; Manzoor Hussain, M.^2 ; Satyanarayana, S.^3 ; Murali Krishna, M.V.S.^4

Mechanical Engineering Department, Mahatma Gandhi Institute of Technology, Gandipet, Hyderabad, Telangana State

500075, India^1

Department of Mechanical Engineering, JNT University Hyderabad, Telangana, India^2

Mechanical Engineering Department, SNIST Ghatkesar, Hyderabad, India^3

Mechanical Engineering Department, Chaitanya Bharati Institute of Technology, Gandipet Hyderabad, Telangana

500075, India^4

关键词: Electro discharge machines;    Electro discharge machining;    Experimental investigations;    High-chromium steel;    Influence of magnetic field;    Machining characteristics;    Process parameters;    Temperature resistances;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012062/pdf
DOI  :  10.1088/1757-899X/346/1/012062

来源: IOP

【 摘 要 】

Emerging technology needs advanced machined parts with high strength and temperature resistance, high fatigue life at low production cost with good surface quality to fit into various industrial applications. Electro discharge machine is one of the extensively used machines to manufacture advanced machined parts which cannot be machined by other traditional machine with high precision and accuracy. Machining of DIN 17350-1.2080 (High Carbon High Chromium steel), using electro discharge machining has been discussed in this paper. In the present investigation an effort is made to use permanent magnet at various positions near the spark zone to improve surface quality of the machined surface. Taguchi methodology is used to obtain optimal choice for each machining parameter such as peak current, pulse duration, gap voltage and Servo reference voltage etc. Process parameters have significant influence on machining characteristics and surface finish. Improvement in surface finish is observed when process parameters are set at optimum condition under the influence of magnetic field at various positions.