Machinability studies on laser-sintered iron-silicon carbide metal matrix composites using wire electrical discharge machining

2012 ◽  
Vol 43 (1/2/3/4) ◽  
pp. 68
Author(s):  
C.K. Srinivasa ◽  
A.R. Vinod ◽  
P.V. Shashikumar
Keyword(s):  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Wire Electrical Discharge Machining ◽  
Matrix Composites ◽  
Sintered Iron ◽  
Iron Silicon

Effect of Wire Electrode Materials on Performance Characteristics for Wire Electrical Discharge Machining of Metal Matrix Composite Material

2020 ◽  
Author(s):  
Gurupavan Hurugalavadi Ramu ◽  
Holalu Venkatadas Ravindra ◽  
Devegowda Tadagavadi Muddegowda
Keyword(s):  
Silicon Carbide ◽  
Composite Materials ◽  
Surface Finish ◽  
Metal Matrix ◽  
Electrical Discharge ◽  
Electrode Materials ◽  
Electrical Discharge Machining ◽  
Electrode Wear ◽  
Wire Electrical Discharge Machining ◽  
Brass Wire

Abstract Composite materials are the advanced materials which are widely used in manufacturing industries. The most commonly used composite materials are metal matrix composites. Due to the presence of abrasive reinforcing particles, traditional machining of these causes severe tool wear and hence reduces the life of cutting tool. Wire electrical discharge machining (WEDM) is quite successful for machining of metal matrix composites. Wire Electrical Discharge machining is a specialized thermal machining process capable of accurately machining parts of hard materials with complex shapes. One of the main research fields in WEDM is related to the improvement of the process productivity by avoiding wire breakage. Wire electrodes used in WEDM are the core of the system. In this study the effect of different wire electrode materials on electrode wear and surface finish for wire electrical discharge machining of metal matrix composite material were investigated. The experiments were conducted under the following process parameters viz., pulse-on time, pulse-off time, wire feed speed and current. For the experiment the aluminium 6061 alloy with 0%, 5%, and 10% of silicon carbide (SiC) reinforcement material was used. To conduct the experiment CNC wire EDM machine with two different wires viz., molybdenum and brass wire was used. Experimental results indicate that for better surface finish of Al6061 alloy, the brass wire is more suitable. The use of brass wire as electrode material leads to significant reduction in electrode wear in machining of Al-5%SiC and Al-10%SiC composite materials compare to molybdenum wire. Increasing percentage of silicon carbide in aluminium 6061 alloy increases the variation in surface finish and electrode wear. Wire wear rate of both brass and molybdenum wire is increased with increase in percentage of silicon carbide.

Electrical Discharge Machining of Sillimanite Reinforced Aluminium Metal Matrix Composites

2018 ◽  
Vol 13 (2) ◽  
pp. 171-175 ◽  
Author(s):  
M. Pethuraj ◽  
M. Uthayakumar ◽  
S. Rajakarunakaran ◽  
S. Rajesh
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Matrix Composites ◽  
Aluminium Metal
Sign in / Sign up

Export Citation Format

Share Document