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孙子健. 异种金属摩擦焊接头结合的特点[J]. 焊接学报, 1980, (2): 74-80.
引用本文: 孙子健. 异种金属摩擦焊接头结合的特点[J]. 焊接学报, 1980, (2): 74-80.
Sun Zijian. BONDING CHARACTERISTICS OF FRICTION WELDED JOINT OF DISSIMILAR METALS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1980, (2): 74-80.
Citation: Sun Zijian. BONDING CHARACTERISTICS OF FRICTION WELDED JOINT OF DISSIMILAR METALS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1980, (2): 74-80.

异种金属摩擦焊接头结合的特点

BONDING CHARACTERISTICS OF FRICTION WELDED JOINT OF DISSIMILAR METALS

  • 摘要: 试验得出异种金属摩擦焊接头处存在着一个具有一定宽度的"结合区"。在这个区域中,从两种金属基体上所生长出来的"树枝"相互穿插,形成一个镶嵌型的空间层状结构。这种空间层状结构的存在使接头具有"体结合"的性质,而不是简单的"面结合",使接头具有一般"面结合"接头所不具备的特点。这种空间层状结构产生的原因是:(1)两种金属热物理性能的不同,引起最高温度面及主要摩擦发热面偏离接触面;(2)加压旋转过程中接触面上偶然性的高低起伏不断的演变。事实证明,在同种金属摩擦焊接头中也有这种现象存在。

     

    Abstract: At the joint formed by friction welding of dissimilar metals exists a "bonding zone" of a certain width. In this zone the "branches" grown up from the two dissimilar base metals are interleaved, forming thus an imbedded space-layer structure. The joint is given therefore with the nature of a "body bonding" instead of a simple "surface bonding", and so also superior characteristics of which a joint of "surface bonding" is not possessing. The causes of the formation of space-layer structure are:1. The shifting of the highest temperature surface and the main frictional beat generating surface away from the contact surface due to the difference in the thermo physical properties of the two metals.2. The deformation of incidental rise and fall on the contact surface in the process of rotational rubbing under pressure. Evidences show that this phenomenon takes place in welding of similar metals as well.

     

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