对不同锻造变形量的钨合金材料组织、性能及其再结晶行为进行了研究。
The investigation was made on microstructure, mechanical property and recrystallization behavior of tungsten alloy with different amount of swaged deformation.
结果表明经高温锻造变形绝大多数缺陷可以在合适的力学条件下修复,但修复机制和条件大不相同。
It shows that most of internal defects can be recovered in properly mechanical conditions at the high...
结果表明经高温锻造变形绝大多数缺陷可以在合适的力学条件下修复,但修复机制和条件大不相同。
It shows that most of internal defects can be recovered in properly mechanical conditions at the high temperature,...
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.
锻坯硬度分布测试表明随着近等温锻造变形量的增大,均匀变形区域的硬度变化基本趋于均匀一致,且硬度平均值也在不断增高;
The hardness testing shows that hardness of uniform zone is tending to be uniformity and the average hardness is continuous to increase.
在锻造过程中先将金属加热,然后施加合适的压力使其塑性变形。
Forging is the process by which metal is heated and is shaped by plastic deformation by suitably applying compressive force.
大部分的变形过程如:锻造,轧制,挤压和拉丝都有同样的过程就是有意使工件的厚度或外部尺寸发生变化。
In bulk deformation processes such as forging, rolling, extrusion, and wire drawing there is an intentional change in the thickness or the lateral dimension of the workpiece.
通过采取相应措施防止氧化,以提高钛合金超塑性变形的性能,确保钛合金等温锻造质量。
Thus the efficient measure of preventing from oxidization was introduced to improve the superplastic deformation and quality of isothermal forging for titanium alloy.
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.
齿轮锻造成形是一个复杂的塑性大变形过程。
The gear forging formation is a complicated and large plastic deforming process.
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。
With the increase of forging temperature, the deformation resistance and stress for working are decreased, which brings about the improvement of formability.
该方法对优化难变形材料锻造工艺和控制锻件质量具有指导作用。
The proposed method can serve as the guide for optimizing the forging process and controlling the forging quality of difficult-to-deformation materials.
分析了变形方式和变形程度对大型锥环形锻件组织和性能的影响并制定较佳锻造工艺。
The effect of deformation mode and degree on the structure and properties of large conical ring forgings was analyzed. An optimal forging process was drawn up.
利用有限元软件模拟了V型砧的锻造拔长过程,并对不同夹角的V型砧压下后锻坯塑性变形区内应力、应变的状态进行比较。
The V-anvil drawing process of large forgings was simulated using FE software, and the stress-strain distributions in the plastically deforming area were compared after different V-anvils drawings.
本文讨论了在锻造过程中不同变形温度、变形程度、变形速度对高温合金组织和性能的影响。
In this paper, the influence of various deformation temperature, deformation degree and deformation velocity on structure and properties of superalloys in forging process was discussed.
研究了高强度钨合金材料大变形量锻造后的扫描断口,并结合力学性能变化规律分析了大变形对材料组织和性能的影响。
In this paper, after large deformation, scanning fractograph of tungsten alloys have been studied, and the influence of large deformation level on microstructure and properties has been analysed.
径向锻造可获得全截面细晶材料,并实现高合金难变形材料由锭到材的一火次锻造。
The gross section fine grain material can be obtained by radial forging. One heat forging from ingot to finished products of high alloy with hard deformation can be realized.
锻造合金具有良好的可锻性,在压力下会变形。
Wrought alloys possess good forgeability, it gives way to pressure.
本文论述了GH49合金锻造叶片局部粗晶形成的主要原因是临界变形。
The origin of localized coarse grains in forged GH49 alloy blades and some approaches of their prevention are studied in this paper.
根据数值模拟结果,研究了不同锻造工艺参数(变形温度、变形速率、压下量等)对叶片锻造过程中的变形力、应力和应变变化的影响规律。
According to the simulation results, we studied the effect of the process parameters, including the deformation temperature, initial strain rate and stroke, on the load, equivalent st...
平砧锻造是塑性大变形问题,本文采用随动坐标系跟踪流动质点,利用能量法分步计算质点位移增量、等效应变场等,然后叠加。
To improve the accuracy of large floating point number calculatation, an iterative approach of inverse transformation for Gauss projection with floating coordinate system is presented.
平砧锻造是塑性大变形问题,本文采用随动坐标系跟踪流动质点,利用能量法分步计算质点位移增量、等效应变场等,然后叠加。
To improve the accuracy of large floating point number calculatation, an iterative approach of inverse transformation for Gauss projection with floating coordinate system is presented.
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