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金属学报  1978, Vol. 14 Issue (2): 179-257    
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铝—铜低温摩擦焊
宁斐章
哈尔滨焊接研究所
LOW TEMPERATURE FRICTION WELDING OF ALUMINUM TO COPPER
Ning Fei-zhang (Harbin Institute of Welding Research)
引用本文:

宁斐章. 铝—铜低温摩擦焊[J]. 金属学报, 1978, 14(2): 179-257.
. LOW TEMPERATURE FRICTION WELDING OF ALUMINUM TO COPPER[J]. Acta Metall Sin, 1978, 14(2): 179-257.

全文: PDF(5036 KB)  
摘要: 经过分析铝-铜摩擦焊接头脆断特点及其原因,在试验的基础上,提出了铝-铜低温摩擦焊工艺。通过降低转速及适当提高摩擦压力,使接头的摩擦加热焊接表面的温度低于铝-铜系统平衡图的共晶点548℃,并保证铝、铜焊接表面金属充分的塑性变形。采用低温摩擦焊消除了铝-铜接头的脆断,提高了接头的强度、塑性、韧性和锻压性能。接头的热稳定性、老化及实际运行试验表明,其质量完全满足技术条件的要求。
Abstract:In view of the well-known embrittlement associated with welded Al-Cu joints, a low temperature friction welding process for joining aluminum to copper has been considered. This process is characterized by the joint action of a lower rotating speed and a moderately high axial welding pressure so as to keep the temperature by friction at the weld interface never raised above that of the eutectic point (548℃) in Al-Cu system, and at the same time to obtain a sufficient plastic de-formation at the friction surfaces of the joint. As a result, the many unsatisfactory features such as low mechanical strength and poor toughness of the weld joint generally associated with the conventional friction welding for dissimilar metals were much improved. Tests for hot stability, aging properties and practical applications also proved that the joint quality fully satisfied the technical requirements.
收稿日期: 1978-02-18     
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