由于金刚石的硬度与弹性模量极高，在烧结时很难发生塑性变形。
Because of the excellent hardness and elastic module of diamond, it is difficult to get plastic deformation when sintering.
正确认识粉末烧结材料屈服函数形状和性质，对于其塑性变形分析有重要意义。
It is important to plastic deformation analysis for we to understand correctly the geometrical form and properties of yield function of sintered powder materials.
用广义ubet方法分析了烧结钢圆环光滑平板镦粗变形，并作了实验验证。
The general UBET is applied to analyze deformation of sintered steel ring is smooth plate upsetting, and theoretical calculations are compared to experimental results.
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