查询词典 die forming

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

By forming semi-solid slurries at the die casting machine, the process improves die casting quality and cost, particularly for automotive components.

通过在压铸机形成的半固态浆料，这个方法显著的提高了压铸件的质量和成本。

We need two sets of parts forming mold, one is a drawing blanking punching die, flanging die is another.

零件的成形需要两套模具，一套是落料拉深冲孔的复合模具，另外一套是翻边模具。

It mainly analyzes the blanking mechanism of die by the theory of plastic deformation and the principle of hydraulic pressure drive, and also analyzes its forming mechanism and theoretical basis of shaping of blanking die section.

利用塑性变形理论和液压传动原理重点分析了模具的冲裁机理，也分析了它的成形机理，还分析了形成冲裁件断面形状的理论依据，同时指出聚氨酯橡胶模具发展的方向。

Mayor of Guangzhou Wang Hardware Mold Products Factory is a professional design and manufacture of metal stamping die manufacturers, mainly aluminum alloy such as AL6061, AL5052 material, such as stamping dies, stainless steel such as SUS301, SUS410 material, such as stamping dies, stainless steel such as SUS304, 21CT, etc. material tensile nut (stainless steel claw nut, non-standard claw nut), and titanium alloys such as rare Tc4, Tc3 materials such as metal forming die.

广州市长宏五金模具制品厂是一家专业设计和制造五金冲压模具的厂家，主要有铝合金如AL6061、AL5052等材质的冲压模具、不锈钢如SUS301、SUS410等材质冲压模具、不锈钢如SUS304、21CT等材质的拉伸螺母（不锈钢爪螺母、非标爪螺母）以及少有的钛合金如Tc4、Tc3等材质的冲压成形模具。

Web thickness is one of the important parameters in Closed-die forging process,which has an effect on forming force of die forging and material consumption.

连皮厚度是开式模锻工艺参数中的一个重要参量，它对模锻变形力和材料的消耗有很大的影响。

The production process includes hammer die forging,pressure forging, roll forging forming,and precision rolling-die forging composite technology.

前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。

The forming technology for the cover plate , the structure of the die for the cover plate and the die manufacturing process were introduced.

介绍了盖板零件的成形工艺、模具结构及模具制造工艺，用二次线切割取代加工中心，经济实用，精度

The bending and pressing convex forming compound die for locking spring is designed, the die structure and pressing process are introduced, the product quality and production efficiency are improved.

针对锁紧片零件，设计了折弯压凸复合模，并介绍了模具结构和工作过程。

The second, according to mapping function of blank and product sections, and to many interpolating functions along model-cavity vertical surface, paper has built mathematics model, fluid surface function of special-shaped product plastic deformation and velocity field, gotten basis theory for metal forming prediction, for example empty drawing metal pipe thickness homogeneity and special-shaped product fluid regular, die parameter optimization and integration research of die CAD/CAM.

根据拔制坯料和制品截面映射函数和模腔纵向多种插值函数（直线型、凸型、凹型和三次多项式型），建立了相似异型材、圆形坯料——异型材和异型材——异型材三维金属拔制塑性成形的数学模型和异型材塑性成形的流面方程及流动场方程，为预报金属成形规律（如：空拔管壁均化、异型材流动规律），模腔参数优化及其CAD／CAM一体化研究提供了理论基础。

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。