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.
围绕粉未烧结体锻造变形的特点，讨论了粉末锻造模具设计的若干问题，并对一些粉末锻造模具进行了分析。
Some problems of design for powder hot forging die have been discussed around the characteristics of forging deformation of powder preforms.
结果表明：烧结体的镦粗变形规律与致密体相同。指出了曲柄压力机是粉末锻造工艺的最佳设备。
The results show that the upsetting deformation law of sintered preform is alike with the compact body, and the crank press is the best equipment of powder forging technology.
对W含量较高的合金，采用二步烧结工艺可以有效地控制变形。
The two step sintering process can effectively decrease the distortion of the alloys with higher tungsten contents.
在微晶玻璃的生产中，微晶玻璃板在由玻璃颗粒烧结、晶化以后会出现板面变形的现象。
In the glass-ceramic production process, glass-ceramic plates often deformed after glass powder was sintered and crystallized.
用烧结铜矩形体作了平面变形实验，并与理论计算进行了比较。
The experiment with rectangular preform made from sintered copper in plane strain has been made, and theoretical calculations are compared with experimental results.
对放电等离子烧结合金进行高温压缩试验，研究了变形速率、变形温度和试样制备工艺对合金力学性能的影响。
The hot compression test was performed, and the effects of the deformation rate, the deformation temperature, and the preparation process on mechanical property of the as–sintered alloys were studied.
阐述了粉末烧结材料塑性变形的基本性质，分析了粉末烧结材料现有屈服条件中存在的问题。
The basic properties of sintered powder materials in plastic deformation are explained. Some defects in present yield criteria of the materials are analysed.
对于球磨粉末烧结合金，增大变形速率或降低变形温度，合金的强度增大，延性降低。
While for the alloys from milled powders, the compressive strength increased and the ductility decreased when enhancing deformation rate or lowering deformation temperature.
针对选择性激光烧结成型件变形大、精度较低的问题，将神经网络方法应用于选择性激光烧结（SLS）加工工艺的研究。
To solve the problem of large deforming and poor accuracy of SLS product , the method of the artificial neural network is applied in the study of selective laser sintering (SLS) process.
不适当的烧结温度和保温时间都会造成各种缺陷，甚至电极变形毁坏，造成电极电化学性能下降。
Inap- proriate sintering temperature and holding time will make a variety of defects, even destruct the electrode, cut down the performance.
用烧结铜矩形体作了平面变形实验，并与理论计算进行了比较。
The experiment with rectangular preform made from sintered copper in plane strain has been made, and theoretical calculations are compared wit…
用烧结铜矩形体作了平面变形实验，并与理论计算进行了比较。
The experiment with rectangular preform made from sintered copper in plane strain has been made, and theoretical calculations are compared wit…
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