Mechanical evaluation and thermal modelling of friction welding of mild steel and aluminium

被引:72
作者
Seli, Hazman [2 ]
Ismail, Ahmad Izani Md. [3 ]
Rachman, Endri [4 ]
Ahmad, Zainal Arifin [1 ]
机构
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia
[2] Univ Teknol MARA Sarawak, Fac Math & Comp Sci, Kota Samarahan 94300, Sarawak, Malaysia
[3] Univ Sains Malaysia, Sch Math Sci, George Town 18000, Malaysia
[4] Univ Sains Malaysia, Sch Aerosp Engn, Nibong Tebal 14300, Penang, Malaysia
关键词
Friction welding; Finite difference; Temperature distribution;
D O I
10.1016/j.jmatprotec.2010.03.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In friction welding of two dissimilar materials, two rods are welded together by holding one of them still while rotating the other under the influence of an axial load which creates frictional heat in the interface. In this study, mechanical properties of mild steel and aluminium welded rods were evaluated to understand the thermal effects, and an explicit one-dimensional finite difference method was used to approximate the heating and cooling temperature distribution of the joint. The thermal effects of the friction welding were observed to have lowered the welded materials hardness compared to the parent materials. The tensile strength of the welded rods is lower than the parent rods due to incomplete welding. The preliminary predictions were compared to actual thermocouple data from welds conducted under identical conditions and were shown to be in fair agreement. The finite difference method proposed in this work will provide guidance in weld parameter development and will allow better understanding of the friction welding process. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1209 / 1216
页数:8
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