Influence of titanium-coated(B4C + SiC) particles on electric discharge machining of AA7050 hybrid composites

被引：0

作者：

Ranjith R. ^{[1
]}

Giridharan P.K. ^{[2
]}

Devaraj J. ^{[1
]}

机构：

[1] Department of Mechanical Engineering, Sri Ranganathar Institute of Engineering and Technology, Coimbatore

[2] Department of Mechanical Engineering, Kumaraguru College of Technology, Coimbatore, 641049, Tamil nadu

来源：

High Temperature Material Processes | 2016年 / 20卷 / 02期

关键词：

EDM; Metal matrix; Particle detachment; Surface roughness; Titanium interface;

D O I：

10.1615/HighTempMatProc.2016017308

中图分类号：

学科分类号：

摘要：

Aluminum alloy AA7050 reinforced with titanium-coated boron carbide and silicon carbide particles is produced by stir casting. The micrograph reveals uniform distribution of coated reinforcements in aluminum composites. Eight types of composites are produced by varying percentage reinforcement. The influence of reinforcing particles present in composites on electric discharge machining has been analyzed. The material removal rate and tool wear ratio decrease with increasing percentage reinforcement. The composite exhibits better surface finish due to heat dissipation. The surface texture of composites shows lesser white spots compared to unreinforced aluminum alloy. An increase in the spark gap due to the addition of strengthening particles is evident. At higher magnification surface cracks, microvoids, and recasted layers are visible. © 2016 by Begell House, Inc.

引用

页码：93 / 105

页数：12

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