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30CrMnSiNi2A高强钢零件淬火畸变是热处理工艺控制中的一个难点。本文立足于有限元技术,构建了适用于30CrMnSiNi2A钢淬火过程的计算模型,实现了30CrMnSiNi2A钢零件淬火过程温度,组织及应力应变的正确预测。基于相应软件对某型火箭助推器轴承支座零件的淬火工艺进行了优化设计,结合实物试验的结果,验证了计算模型的有效性,解决了实际零件淬火畸变的超差问题,凸显了数值模拟技术对热处理工艺优化的重要指导作用。
The quench distortion of 30CrMnSiNi2A high strength steel parts is a difficult point in the heat treatment process control. Based on the finite element method, this paper constructs a calculation model suitable for the quenching process of 30CrMnSiNi2A steel, and realizes the correct prediction of temperature, microstructure and stress-strain of the quenched part of 30CrMnSiNi2A steel. Based on the corresponding software, the optimization of the quenching process of a type of rocket booster bearing support parts was carried out. The results of physical test verified the validity of the model and solved the problem of over-tolerance of quenching distortion of actual parts. Simulation of heat treatment technology to optimize the important guiding role.