淬火热传导数学模型建立及其有限元仿真分析  

Mathematical model of heat conduction of quenching process and its FEA simulation

作　　者：魏联华[1] 

机构地区：[1]秦皇岛职业技术学院,河北秦皇岛066100

出　　处：《矿山机械》2009年第12期38-41,共4页Mining & Processing Equipment

摘　　要：介绍了对淬火过程热传导数学模型的建立方法,并且利用ANSYS有限元分析软件对其进行仿真。通过仿真验证了数学模型,并且生成了20s和60s淬冷的应力图。通过ANASY的仿真模拟出了不同直径的圆柱体之间的淬火冷却应力图,验证了数学模型的正确性,并且从分子层面上对产生这些现象的机理进行了分析。仿真还表明:工件直径越大,冷却时间越长,热交换越充分,其内部应力能够得到较大的消除。工件在长时间的淬冷中产生了外围表层的应力,工件表现出宏观的变形,对工件的成型影响较大。这些结论有力地指导了工程实践,对生产加工零件有实际意义。This paper introduces how to build the mathematical model of heat conduction of quenching process. The ANSYS soft is used to simulate the process of quenching. After simulating the model, it generates the stress sketches about quenching 20 seconds and 60 seconds. The stress sketches show that the radial dimension of the part is not key role for the quenching process, the quenching time makes the parts more transformation and the part failure is a key factor in the surface of parts. Those conclusions are useful for the engineering practice.

关 键 词：淬火 热传导 数学模型 有限元仿真 

分 类 号：TG156.3[金属学及工艺—热处理]