The experiments consisted of the measurement of yield stress, tensile strength and hardness for samples cut from various parts of the forging.
试验包括对取自不同锻造零件的试块的屈服强度、抗拉强度及硬度的测量。
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
In order to keep the property of forging pieces which they already have, calibrating in the way of cold correcting the shape with stress release and tempering could get a better result.
二次调质后，堆芯段筒体锻件产生了椭圆变形，为了不影响锻件已有性能，采用冷校形加去应力回火方法进行校正。
The overall stress tended increasing during the forging process. Especially in complicated structure, the stress is larger and no significant changes in the law.
锻压过程中应力总体呈增加的趋势，在锻件结构较复杂的地方，应力值较大，且变化无明显规律；
Only when the blank width ratio is confined, can no crosswise tension stress forging be realized, regardless of flat platen stretching or the new FM forging method.
无论是平砧拔长还是新fm锻造法，都要对料宽比加以控制，才能实现横向无拉应力锻造。
Using experimental and finite element analysis methods, the effects of electrode forging force are investigated on residual stress and fatigue behavior of spot welded aluminum alloy joints.
采用试验和有限元分析相结合的方法，考察了锻压力对铝合金电阻点焊接头中残余应力和接头疲劳行为的影响。
The optimized die is subject to less stress during forging process, which can ensure the service life of dies and guarantee the quality of forging part.
优化后的模具在锻造过程中承受较小的应力分布，从而可以确保模具的使用寿命以及锻件的质量不受影响。
With the increase of forging temperature, the deformation resistance and stress for working are decreased, which brings about the improvement of formability.
随着锻造温度的增加，变形抗力和加工应力减小，合金的成形性能得到提高。
The forging method is superior to the common flat anvils(FA) forging method in inner stress states, metal tissue, overall properties and geometrical shapes of forgings.
水平V形砧锻造法在内部应力状态、金属纤维组织、锻件的整体性能、宏观几何形状等方面都优于普通平砧锻造法。
The factors of influencing the thermal load and thermal stress at the peril point of hot forging die were analyzed.
分析了影响热锻模热负荷与危险点处热应力的因素。
Besides, in the position of larger value stress the local strain is smaller that coincide with the law of stress and strain change during the common forging process.
其次，应力值较大的地方应变值较小，符合锻造过程中的应力应变变化规律。
This paper introduces and analyses the applied examples of vibratory stress relieving in heavy shaft forging, seamless steel tube forgings... Crankshaft forgings and heavy weldment in our plant.
本文介绍了振动时效技术在我厂大型轴类锻件、无缝钢管锻件、曲轴锻件及大型焊接件上的应用实例并进行了分析。
Research on the stress and strain evolution of aluminum alloy hot forging die;
简述了精铸热锻模具国内外应用状况，对铸造模具钢的研究进展进行了研究。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
For the convenience of casting, machining, transporting, etc, the beam of large-scale hydraulic forging press has always been designed as combined structure and connected with pre-stress bolts.
大型液压机的横梁由于铸造、加工、运输等原因，大多设计成组合结构，采用预紧螺栓组连接。
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