AA7075铝合金熔化极气体保护焊十字接头根部失效疲劳寿命的预测

来源 :中国有色金属学报（英文版） | 被引量 : 0次 | 上传用户：wwwvv9vvcom

【摘要】

：

通过建立一经验公式来预测熔化极气体保护焊十字接头根部失效的疲劳寿命.采用高强可时效硬化的AA7075-T6铝合金作为基材进行焊接实验.实验设计概念被用来优化进行疲劳实验所

【作者】

：

B. RAVINDRA T. SENTHIL KUMAR V

【机构】

：

Department of Mechanical Engineering,Centre for Materials Joining & Research(CEMAJOR)

【出处】

：

中国有色金属学报（英文版）

【发表日期】

：

2004年期

【关键词】

：

铝合金熔化极气体保护焊十字接头疲劳寿命 aluminium alloy gas metal arc welding cruciform joint fat

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通过建立一经验公式来预测熔化极气体保护焊十字接头根部失效的疲劳寿命.采用高强可时效硬化的AA7075-T6铝合金作为基材进行焊接实验.实验设计概念被用来优化进行疲劳实验所需要的次数.在一伺服液压控制疲劳实验机上进行疲劳实验,实验采用恒定荷载.采用所建立的经验公式,预测的熔化极气体保护焊十字接头根部失效疲劳寿命可达到95%的可信度水平.详细讨论了十字接头尺寸对疲劳寿命的影响.

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AA7075铝合金熔化极气体保护焊十字接头根部失效疲劳寿命的预测

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