锻造过程实现净形和近净形制造最关键的一点是对预锻模进行优化设计。
The key step in flashless forging is to optimize the design of preform die shape.
研究表明：通过合理设计锻模，选择适当的坯料尺寸，能有效防止锻件内部冶金缺陷的进一步扩大。
It shows that rational die design and billet size can effectively prevent the defects from further enlarging.
完成的产品是锻模的粗糙近似物。
螺母成型模具，高抗冲击性锻模。
两者合在一起形成闭式锻模。
给出了震动器机壳斜销式液锻模具设计结构。
The paper gives out structure of tilting pin type hydraulic forging die for producing frame of shaker.
本文介绍了用于辊锻模具设计的两个程序系统。
Two program systems used in the design of roll forging dies were introduced.
对该冷精锻模的工作过程、特点等进行了分析。
The working process and character of the designed cold precision forging die for bevel gear was analyzed.
研究开发了辊锻模膛四轴三联动数控加工技术。
The four-axle 3D numerical controlled rolling-forging machining technology for die impression is studied and developed.
耐蚀、抗热疲劳，具有加工硬化性。堆焊热锻模。
HRc28-38. Corrosion and thermo-fatigue resistance, work Harding. Hardfacing of hot forging die.
叶片锻模的分型技术是叶片锻造加工的关键技术。
The parting technology of blade forgings is the key point in forging work.
分析了影响热锻模热负荷与危险点处热应力的因素。
The factors of influencing the thermal load and thermal stress at the peril point of hot forging die were analyzed.
锐角会增加锻件中的应力，同时在使用时削弱锻模。
Sharp corners are stress-risers in the forgings, as well as make the dies weak in service.
基于冷锻成形原理，对锥齿轮冷精锻模进行了设计。
The bevel gear's cold forging die was designed based on the principles of cold precision forming.
多金属热锻模；
用于铸钢及锻钢上堆焊锻模、也可用于锻模的修复。
For surfacing welding the mold of forge in cast steel and forging steel, also to repair the forge mold.
按工艺性质分类，如拉深模、粉末冶金模、锻模等。
According to the classification process characteristics, such as drawing die, powder metallurgy mold, die, etc.
介绍了油孔螺塞拼接式热锻模具的设计及其应用效果。
Finally the design and application achievement of this hot forging die are described.
气门锻模正常失效方式为磨损、压塌和冷热疲劳裂纹。
The failure modes of the combination valve hot forging die in normal working condition are wear, collapse or cold hot fatigue crack.
这能生产具有锻模形状和合适机械性能的充分致密零件。
This produces a fully dense component with the shape of the forging die and appropriate mechanical properties.
其中包括开式锻模，就是不完全封闭被成型金属的模具。
These may include open dies i. e. , dies that do not completely enclose the metal to be shaped.
指出了精铸热锻模具制造中存在的成型问题，并提出了建议。
The problems in cast technologies of hot-forging dies are pointed out and suggestions are presented.
计算机程序可以预测锻模的装料、负载、能量和缺陷的形成。
Computer programs can predict die fill, load, energy, and defect formation.
锻模使用寿命对锻件生产的产量、质量和成本有直接的影响。
The life of forge die has direct effects on cost and quality and productivity of forgings.
分析了降低热负荷的方法和途径，提出多金属热锻模设计方法。
After analysis of reducing the heat load's ways and means, the design method for multi-metal hot forging dies is proposed.
结果表明，精铸热锻模具的使用寿命和稳定性得到了明显提高；
The results show that the life and stability of the die elevates;
介绍了锻模的损坏原因、损坏形式以及延长锻模使用寿命的措施。
The paper introduces the cause of forging die breakdown and the measure of extending the service time.
模具的某些独特设计具有代表性，可供同类零件液锻模设计时参考。
As the die adopts some unique design, it also can be used for reference when design hydraulic forging die for similar parts.
最后以一轴对称圆盘锻造过程为例，对预锻模具形状进行了优化设计。
Finally, the forming process of an axisymmetric disk as an optimization example is given.
最后以一轴对称圆盘锻造过程为例，对预锻模具形状进行了优化设计。
Finally, the forming process of an axisymmetric disk as an optimization example is given.
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