期刊
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
卷 27, 期 6, 页码 931-936出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrmhm.2009.05.002
关键词
Friction stir spot welding; Hard metals; Tool wear; Tensile test; Low carbon steel
资金
- Korean Government (MOEHRD) [R32-2008-000-10124-0]
Tool wear is a key issue for the friction stir spot welding (FSSW) of steel plates, especially in the automobile industry. In this study, steel plates were welded 500x using FSSW with WC-Co alloy tools of two different compositions. The effect of the weld number on the joint strength and the tool wear characteristics were analyzed by using a non-contact, 3D measurement system, scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray diffraction (XRD). The experimental results indicated that the tool suffered extreme wear and that the joint strength was affected by the worn tool shape after welding. This tool wear was attributed to the formation of a ternary W-Fe-O compound, oxidative wear of WC and fatigue of the Co binder. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据