深冷处理对YG8硬质合金/42CrMo钢钎焊接头残余应力的影响
Heat Treatment of Metals(2021)
Abstract
通过ANSYS仿真软件建立了YG8硬质合金/42CrMo钢钎焊接头的焊接工艺模型和深冷处理工艺模型,分析了接头表面残余应力分布,并与经深冷+回火处理后的焊接接头表面残余应力进行对比.结果表明,深冷处理可使焊接接头42CrMo钢侧形成残余压应力,且深冷温度对残余压应力的影响较深冷次数更明显.最优深冷工艺为-160℃深冷3次,且仿真结果与试验测量值相差不大,表明所建立的模型具有一定的可靠性.
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