The conventional method of testing the shed drawing deformation of travellers is of poor precision and difficult operation.
目前纺纱用钢丝圈开口拉伸变形率的测量采用人工方法,精度低,操作困难。
This paper discusses the solid solution, surface treatment and drawing deformation and drawing process of GH90 alloy spring steel wires.
本文探讨了GH90合金弹簧钢丝的固溶处理、表面处理以及拉拔变形量和拉拔工艺。
On the basis of the fracture model and the deep drawing deformation force. The fracture limit prediction and control criterion is calculated.
根据破裂模型和拉深变形力,导出了破裂极限预报与控制判据。
A new push_pull drawing technology is put forward according to the post drawing deformation of cylindric part. This technology is theoretically analyzed and evaluated in detail.
针对筒形件的后续拉深变形提出了一种新的推拉拉深工艺方法,并对此进行了较详细的理论分析和试验研究。
Based on research on mechanism of non die drawing deformation of thermal coupling casing, law of drawing speed variation was analyzed, and the mathematical model for non die drawn casing established.
通过对热电偶套管无模拉伸变形机制的研究,分析了拉伸速度的变化规律,并建立了无模拉伸套管的数学模型。
It is put forward in this article that the cross section deformation index Q can be used to evaluate the inhomogeneity of deformation in tube drawing.
为评价管材拉拔中的不均匀变形,提出用管材拉拔前后截面形状变化指数Q描述截面变形的不均匀性。
Blank calculation according to the drawing of stamping parts is the precondition of analyzing stamping parts deformation degree and the basic step of working out process regulations.
根据冲压件的零件图计算其毛坯尺寸,是分析冲压件变形程度的前提和制订工艺规程的基本步骤。
Drawing process of aluminum alloy wire has large plastic deformation, which mathematical model is complicated including geometric nonlinearity, boundary nonlinearity, material nonlinearity and so on.
铝合金导线拉拔成型塑性变形大,数学模型复杂,集几何非线性、边界非线性、材料非线性于一体。
The formulas for calculating top limitation of drawing originated from the deformation limits on the flange and the wall of cylindrical articles are developed.
从圆柱形零件的凸缘上和壁上的允许变形出发,获得了极限拉伸程度的计算公式。
The results showed that, there is a deformation tendency of drawing, and flanging and the tendency is related to, in the same parameter of die and the same technological conditions, the hole size.
试验所获应变分布表明,带孔件在变形过程中存在拉深和翻边两种变形趋向性,在模具参数和工艺条件完全相同的情况下,其可能的变形趋势与孔的尺寸有关。
The effect of deformation temperature and deformation speed on the limit drawing ratio (LDR) and microstructure of the roll-casting AZ31 magnesium alloy sheet.
研究了变形温度、变形速度对铸轧az31镁合金板的极限拉深比(ldr)和组织的影响。
The main deformation areas of the rectangular box in deep drawing were flanges and the circle-corners of female die in the corners.
盒形件拉深主要变形区集中在盒形件角部的法兰和凹模圆角部位。
The distribution of stresses and strains in the deformation zone under roller dies drawing is different from that under fixed rolls drawing, but tends towards rolling.
辊模拉拔变形区内的应力应变分布特征完全不同于固定辊模拉拔,而倾向于轧制过程。
In of displacement induces shear stress. Shear deformation this paper, flow law of material is theoretically analysed based on deformation of the flange deformed area in box drawing.
针对盒形件拉深成形时法兰变形区的变形进行了材料塑性流动的理论分析,提出了位移速度差诱发剪应力的观点。
The effects of various amounts of deformation, steel grades, degrees of hardenability, die entry angle and drawing speeds on dia. sinking drawing are studied.
研究了不同变形量、钢种、硬化程度、模角和拔制速度对空拔管直径缩小量的影响。
Effects of cross shear rolling on the deformation textures and the deep drawing earing of 3004 aluminium alloy were studied.
以3004铝合金为实验材料,研究了异步轧制对该合金的变形织构以及相应的制耳率的影响。
It is suggested that deformation mechanism of crystalline polymers may be different depending on drawing condition.
目前存在的不同观点及各方面的实验证据。指出拉伸结晶聚合物的形变机理可能依赖于拉伸条件。
The forming process of rectangular case drawing is simulated and the rule of material flowing deformation in the process of drawing is analysed.
用有限元模拟矩形盒拉深成形过程并剖析拉深中材料流动变形规律。
Based on the assumption, the computer was used to calculate the minimum deformation energy, and the speed distribution in the deformed area and the drawing force were gotten.
在此基础上利用流函数建立了变形区速度场,并利用计算机对变形能进行求极小值,得到了变形区的速度分布及拉拔力。
The magnitude and symbol of the residual stress greatly depends on the initial deformation rate of the pipe under drawing with the working tools.
残余应力的符号和大小在很大程度上取决于钢管在拔制工具中的初始变形率。
In this paper, authors, with coordinated grit method, studied the deformation process of cup drawing with hole.
本文采用坐标网目法对带孔件成形过程进行了试验研究。
Any mechanical operation that creates permanent deformation, such as bending, rolling, drawing, etc. performed at room temperature that increases the hardness and strength of the stainless steel.
引起材料永久变形的机械操作,如弯曲、辗制、拔制等。在室温下操作,提高不锈钢的硬度及强度。
LC the final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming e. g. bending, expanding.
冷加工(软)最后热处理之后进行小变形量的冷加工,对钢管再加工时允许有限的冷变形(例如:弯曲,扩口)。
During cold drawing, the alloy exhibited excellent workability. Deformation twins appeared when the reduction of cold deformation was around 20%.
当冷变形率在20%左右时,出现变形孪晶,使得合金强度有大幅度提高。
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.
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。
It was discussed in the paper that the method applied to the analysis of rigidly plastic deformation through examples of upsetting a cylindrical billet and drawing a square...
以圆柱坯热镦粗和方条料热拔长问题为例,论述了该方法在刚塑性变形分析中的应用。
The scheme is checked out by using the simulating software of metal plastic deformation and those experiment data is into account during the key programming of CAPP of cylindrical cup deep-drawing.
使用塑性成形仿真软件模拟工件实例验证方案,用验证结果指导筒形件拉深CAPP程序的内核设计。
It is concluded that the total strain theory can be used as a substitute for the incremental strain theory to analyse the force and deformation in sheet metal deep-drawing process.
结果表明,全量理论可代替增量理论分析、计算拉延成形过程的力和变形等。
It is concluded that the total strain theory can be used as a substitute for the incremental strain theory to analyse the force and deformation in sheet metal deep-drawing process.
结果表明,全量理论可代替增量理论分析、计算拉延成形过程的力和变形等。
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