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中文摘要：
纯铁粉末的温暖的压缩过程被调查。由于有弹性、塑料、热的紧张的存在，机械的 a coupled 和热模型被使用。为粉末材料的 elasto 塑料的组成的方程基于椭圆体的收益标准和连续统理论被开发。组成的方程集成于组成的不可分的算术并且解决了采用增长反复的答案策略。铁粉末的收益力量根据张力的实验被获得。当压缩温度被提起到 130 deg C 时，铁粉末金属的收益力量落下到房间温度价值的 85percent。修改库仑磨擦法律被使用，模拟结果证明磨擦是导致不同类的亲戚的一个重要因素在这些区域的密度和反向密度的分发现象接近 die 墙和对称的轴。
英文摘要：
Warm compaction process of pure iron powder was investigated. Due to the existence of elastic, plastic and thermal strains, a coupled mechanical and thermal model was applied. The elasto-plastic constitutive equations for powder material were developed based on ellipsoidal yield criterion and continuum theory. The constitutive equations were integrated into the constitutive integral arithmetic and solved employing incremental iterative solution strategy. The yield strength of iron powder was obtained according to the tensile experiments. When the compaction temperature was raised to 130 ℃, the yield strength of iron powder metal drops to 85% of room temperature value. Modified coulomb friction law is applied and the simulation results show that friction was an important factor resulting in the inhomogeneous relative density and reverse-density distribution phenomena in the regions near the die wall and the symmetrical axis.
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