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材料研究学报  2006, Vol. 20 Issue (3): 267-271    
  论文 本期目录 | 过刊浏览 |
工艺参数对MIG焊铝铜合金焊缝组织的影响
杨成刚  国旭明  洪张飞  钱百年  赵秀柏
引用本文:

杨成刚; 国旭明; 洪张飞; 钱百年; 赵秀柏 . 工艺参数对MIG焊铝铜合金焊缝组织的影响[J]. 材料研究学报, 2006, 20(3): 267-271.

全文: PDF(1683 KB)  
摘要: 研究了电磁搅拌工艺参数对2219铝铜合金脉冲MIG焊焊缝形状和组织的影响.结果表明,随着磁感应强度增加,焊缝枝晶数量减少,等轴晶数量增加,焊缝由指状熔深变为成形良好的椭圆形熔深.当磁感应强度和频率匹配合适时,焊缝成形良好,焊缝组织几乎为细小的等轴晶.但随着磁感应强度继续增加,焊缝成形变差,焊缝等轴晶数量减少,枝晶数量增多.电磁搅拌频率对焊缝成形影响不大,频率较低和较高时都会降低焊缝组织的细化效果.
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收稿日期: 1900-01-01     
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