查询词典 die forming

According to the viewpoint that the thinnest part of the deforming metal is usually the important and decisive part of the deforming force , the influence of the bridge size of the fash slot on the die forming and the deforming force is analyzed.

通过坯料在模锻型腔中的压挤成形过程，模拟开式模锻中飞边槽对金属充满型腔的作用，根据"变形金属最薄的部分常常是决定变形力的重要部分"这一观点，分析和探讨飞边槽桥部尺寸对模锻成形及变形力的影响，提出对高度较小、直径较大的齿轮以及复杂模锻件设计方法的改进，以提高该类锻件的模具寿命和生产率。

Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.

因此本文的主要研究内容和结果如下：本文以某种直齿轮：模数m＝2，齿数z＝20，压力角α＝200，变位系数x＝0为对象，针对直齿轮精密塑性成形变形抗力大，流动性差，特别是成形中齿轮角隅部分更加难以充满问题，基于精密塑性成形技术、逐次控制原理以及连续局部变形原理提出了"直齿轮滚轧制坯－镦挤、胀挤复合精成形"的工艺方案，设计了滚轧制坯的模具结构和上下冲头带圆角的镦挤、胀挤复合精成形的模具结构。

Closed die forging or extrusion, drawing, upsetting, bending or free forging, flat rolling, profile rolling or tumbling cold, hot or semi-hot, mechanical press, hammer or screw press, rolling machine or orbital forging even coupled processes and spring-controlled tools, simple low-alloyed or stainless steel , aluminium or non-ferrous metal, titanium or nickel based alloys, massive or sheets, material flow or dieload analysis

Forming已经成功研制可支持目前所有制造业的软件应用程序，并可独立的仿真金属温度，机体使用情况或材料的处理：封闭模锻或挤压，钢绘，镦，弯曲或自由锻造，轧制，型材辊压或翻滚-冷，热或半热，机械压力机，锤或螺旋压力机，辗机或轨道锻造-更可加上流程以及spring-controlled工具，简单的低合金或不锈钢，铝或非铁金属，钛镍合金，大规模工程或床单工程，物质流或dieload分析。

In mathematical simulation theory, stress-strain relation of powder-compactdeformation , equivalent strain velocity equation , and unitary matrix equation ,are deduced.Therefore, feasibility of Multi-Core-Line-Die Powder Extrusion Forming is validated by Research on Mathematical Simulation Theory and Powder Extrusion Forming Technology of Multi-Core-Line-Die, which is a better forming method of metallic carrier.

在数值模拟理论中，推导了粉末体变形的应力-应变关系等效应变速率方程和求解的整体矩阵方程因此，"多芯线粉末挤压成形工艺及其数值模拟理论研究"验证了多芯线粉末挤压成形在工艺上的可行性，是金属载体成形的较好方法。

There are six forming methods throughcombining three different types of elements, among them, thereare four forming methods which have emblematize andpracticability: multi-point die forming、half multi-point die forming、multi-point alternating forming、half multi-point alternating forming.

对有限元模型建立及数值模拟关键算法和参数的研究在进行薄板类件多点成形的有限元分析中，涉及两类边界条件，一类是载荷，另一类是运动约束。

A forming die set, comprising: an extendable punch having a first impact surface comprising a plurality of piercing points; a die body containing an aperture adapted to receive said punch; a fixed opposing post having a second impact surface positioned within said aperture, said opposing post recessed below a surface of said die body; at least one forming bushing slideably engaging said opposing post and positioned between said opposing post and said die body; and at least one forming bushing actuator supporting said at least one forming bushing.

形成一钢模组，包含：一个可扩充的打洞器让一种第一种冲击升至水面包含一个刺骨点的多数；一个包含一个孔的一钢模身体适应接受说打洞器；有一个第二个冲击表面的固定反对职位放置在说的孔里面，说反对被在一个说的一钢模身体的表面下面作凹处的职位；至少一个形成桥衬可滑动动人说反对职位而且在说反对职位之间放置而且说一钢模身体而且至少一个支援的形成桥衬主动器至少说一个形成桥衬。

Use mold-Mould Base simple structure the high utilization,with China's rapid development of the auto industry die,die forming contemporary industrial production has become an important means. For the rapid development of industry has played an important role.

使用模具生产模架结构简单，材料的利用率高，随着中国模具汽车工业的快速发展，模具成型已成为当代工业生产的重要手段，成为多种成型工艺中最有潜力的发展方向。

Both multi-point press forming and multi-step multi-point die forming make the full use of multi-step forming.

多点压机成形和多道次多点模具成形充分利用多点成形的柔性特点，实现了对板材变形路径的控制。

Barlat1989 is recommended owing to its computational effectiveness. The technique is given using the dynamic relaxation method to obtain the steady position of the blank inside die opening line from end of holder forming stage to start of die forming stage.

在板料成形过程的数值模拟研究中，提出了将动力松弛法用于获得压边圈成形结束到凸模成形开始之前凹模开口线内板料的稳定位置，从而消除动力效应的处理技术。

With corresponding complex die-cutting line of products, such as: all kinds of paper cups, yanhe, handtailor, pillow-shaped dorsal seaming, take the printed color manuscript line as it collapsed forming tools, to check whether the cutting line meets its forming the required geometry to prevent waitpending business card printing and membership card prepared to die-forming found that I cannot follow this size.

而相差驳杂的模切线的产物，如：百般纸杯、烟盒、特制盒子、枕形不面不开袋等，还需用打印不入的彩稿按其刀模线折叠成形，以查抄刀模线是否相符其成形所需的众少尺寸，避免比及制卡和会员卡制作达成给模切成形时才发掘按照此尺寸无法成形。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。