一、前言机械断裂、热裂纹、磨损及塑性变形是锻模的四种主要失效形式,研究锻模失效机理首先需求解锻模温度场。用于模拟锻造生产的热粘塑性分析,是最近几年发展起来的新方法[1,2],分析中涉及求解锻模温度场。发展锻造生产中的一些精密成形工艺[3],同样涉及求解锻模温度场。用有限元求解锻模温度场,首先要对有限元求解热传导方程进行研究。本文着重研究不 I. INTRODUCTION Mechanical failure, hot cracking, wear and plastic deformation are the four main failure forms of forging die. To study the failure mechanism of forging die, the temperature field of solution die is first required. The thermo-viscoplastic analysis used to simulate forging production is a new method developed in recent years [1, 2], which involves solving forging die temperature field. Developing some precision forming processes for forging [3] also involves solving forging die temperature field. Finite element to solve forging die temperature field, first of all, to solve the finite element thermal conductivity equation. This article focuses on research not