通过网格试验研究分析了枝叉管形件剪-挤工艺过程的金属流动情况及其变形规律;
Grid-experiments are performed to investigate metal flow and deformation in the shear-extrusion process of tubular components with branches.
本文对该轮毂成形试验中的金属流动和两种欠肉缺陷进行了观察和分析,提出了预防两种欠肉缺陷产生的方法。
In this study, the metal flow and underfills in the boss forming are investigated by experimental observations, and methods for preventing underfills generation are described.
通过工件工作区的应力分布云图考察金属材料的塑性流动情况,分析冷辗成形的机理。
According to stress distribution pattern in working region of the workpiece, the plastic flow condition is inspected, the mechanism of cold rolling forming is analyzed.
分析了平面应变压缩过程中金属的非对称流动方式的进展以及产生原因。
The development and reason of asymmetric flow pattern during plane strain compression was analyzed.
分析了定径过程中钢管内金属流动和弹复行为。
Stress and metal flow in steel tube during sizing process were analyzed.
基于优化后的工艺参数组合,进行再次模拟,分析金属的流动情况、应力应变及壁厚质量,确定最终的最优凸凹模结构。
Chose the most suitable process parameters to simulate once again, which analyzed the metal flow condition; stress and strain and quality of wall thickness.
本文分析了模具振动方向与被加工金属的流动方向相同的一类振动塑性加工系统的模具阻力。
In this paper a kind of die resistances of oscillatory plastic working process was analyzed in which the oscillatory of dies had the same direction with worked metal flow.
分析了液态挤压过程中金属的流动和变形特征。
Flow and deformation feature of the metal in the process of liquid extrusion were analysed.
通过对正挤压工序的理论分析得到了数值解,其精确地满足金属流动描述的微分方程。
In this paper, the numerical solution is got through analyzing the direct extrusion procedure theoretically, that can describe the differential equation of metal flowing accurately.
在恒定热流密度条件下,对单相流体分别强制轴向层流流经多孔泡沫金属换热器管内、外的流动和对流传热的均匀性进行了分析。
The distributions of velocity and temperature of fluid inside the tube fitted with the porous metal foam were more uniform than that of the blank tube.
对数值模拟结果进行了液态金属传输流动行为的分析,重点讨论了传输过程中氧化膜和卷气产生的原因。
The simulation results were investigated, and the molten metal's flowing behavior was discussed and then the generation of surface defect and air entrainment was analyzed.
分析了主动螺旋伞齿轮闭塞挤压的金属流动路线,设计了预制坯的形状。
In this paper, the metal flow route during closed die extrusion for spiral bevel driving gear of automotive final drive is analyzed and the profile of preformed blank has been designed.
分析了宽展挤压变形规律及宽展模具调节金属流动的机理,建立了宽展挤压流动模型。
The calculation of deformation force during steady state stage, as well as the design principles of the expansion feeder plate die is discussed.
根据损伤变量的变化,采用单元消除法分析了剪切裂纹的扩展,并得到了剪切各个段的金属流动、应力应变以及损伤变量分布。
Crack growth was analyzed by using element eliminating method based on the variation of damage variable. Material flow, strain, stress and damage distribution of different steps was achieved.
本学位论文主要研究了流动注射化学发光分析法在药物及金属离子分析中的应用,它包括综述和研究报告两部分。
The paper mainly refers to the analytical application of flow injection chemiluminescence in pharmaceutical and metal ion analysis and consists of two parts including summary and the research works.
分析了宽展挤压变形规律及宽展模具调节金属流动的机理,建立了宽展挤压流动模型。
The flow characteristics in expanding extrusion of aluminum alloy shapes are analyzed. The expanding extrusion flow model is built.
分析了丝杠冷滚打过程中金属的流向,验证了金属流动最小阻力定律。
Metal flow of lead screw cold roll-beating process is analyzed, and metal flow's law of minimum resistance is verified.
对常规轧制和交叉轧制时变形区金属流动特性进行了理论分析 ,并在二辊冷轧机上进行了试验。
The metal fluidity in deformed rigion was stutied by comparing commen rolling with cross rolling and experied with two high cold rolling mill.
对常规轧制和交叉轧制时变形区金属流动特性进行了理论分析 ,并在二辊冷轧机上进行了试验。
A big flanged forgings stamping was studied by cross extruslon, as well as its technology, applience and feature of metallic flow.
在低温陶瓷结合剂中添加适量金属或合金粉,就会对结合剂的耐火度、流动性、热膨胀系数、强度等性能产生影响。通过试验分析,合金粉的加入能改善结合剂的强度及韧性。
When Added Additive, PEC, strength, the ratio of the thermal expansion and fluidity etc, of bond would be effected, through testing, strength and toughness of bond will proved with adding alloy.
利用软件DEFORM 3d对金属切削过程中的切屑流动状态及过程中的温度场和应力场进行了模拟加工并分析了模拟结果。
The chip flowage, in the temperature fi eld and stress field in the process of metal cutting are simulated with the commercial software DEFORM3D and the simul...
利用软件DEFORM 3d对金属切削过程中的切屑流动状态及过程中的温度场和应力场进行了模拟加工并分析了模拟结果。
The chip flowage, in the temperature fi eld and stress field in the process of metal cutting are simulated with the commercial software DEFORM3D and the simul...
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