查询词典 die forging

Enterprise was founded in June 1987, then to 750 kg Kong Qichui mainly to die in Ningbo, machinery manufacturing industries producing all kinds of forging, production, sales forging professional manufacturers. 1998 in order to change the backward state of forging production, the company invested 107 million, added a 3-ton, 1 ton steam hammer to a dual-use space Taiwan.

企业创建于1987年6月，当时以750kg空气锤为主，为宁波地区模具、机械制造行业生产各种锻件，是生产、销售锻件的专业厂家。1998年为改变地区锻件生产的落后面貌，公司投资700万元，增添了3吨、1吨蒸空两用锤各1台。

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。

This light weight aluminum knuckle will be made by the hybrid processes, casting and localized forging, which be with some advantages of relative low tooling cost and high component mechanical property over counter pressure die casting, permanent mold die casting or forging processes. It is very suitable for applying the development of light weight knuckle as when it is required in small quantity and large variety type.

它是一种以轻质铝合金作为材料，应用复合制程工法所作成，其模具费用较铝合金锻造品低廉且机械性能与品质稳定性也优於铝合金差压或重力铸造工法，所以很适合针对少量多样之转向节产品进行开发。

In order to make good use of the expert's experience and knowledge in the forging technology and die design process, object-oriented knowledge modeling methodology is proposed in this paper based on the character of hammer forging die design, and the knowledge model and knowledge database of the knowledge-based hammer forging design system is built .

将模具设计的经验和知识应用于锻造工艺与模具设计过程中，针对锤上模锻设计的特点，提出了面向对象的知识建模方法，建立锤上模锻设计支持系统的知识模型和系统的知识数据库。

This article introduce the designing principle and structural features of forging body for ball valve; detailed analgzing open die draw extruded forging process on smith hammer and die designing.

介绍了锻钢球阀阀体设计的原则和特点，论述了在自由锻锤上锻造阀体的翻挤成形工艺及模具设

Based on the compressibility, viscosity resistance and the working house system's deformation etc, flow equations of distribution spool, hydraulic tube and fluid cylinder for 300 MN die forging hydraulic press were established, and dynamics equations of moving beam and upper beam were established based on analysis. The dynamics mechanical-hydraulic coupling model of driving system was established.

考虑流体的可压缩性、粘性阻力及工作框架系统变形等因素，采用解析法建立300 MN模锻水压机动梁驱动系统分配阀口、液压管道、液压缸的流量方程以及动梁和上横梁的动力学方程，得到驱动系统的动态机液耦合模型。

Based on the compressibility, viscosity resistance and the working house system's deformation etc, flow equations of distribution spool, hydraulic tube and fluid cylinder for 300 MN die forging hydraulic press were established, and dynamics equations of moving beam and upper beam were established based on analysis. The dynamics mechanical-hydraulic coupling model of driving system was established.

摘 要：考虑流体的可压缩性、粘性阻力及工作框架系统变形等因素，采用解析法建立300 MN模锻水压机动梁驱动系统分配阀口、液压管道、液压缸的流量方程以及动梁和上横梁的动力学方程，得到驱动系统的动态机液耦合模型。

The influence of the parameters of resistance wall on the forming of automobile crankshaft during die forging was analyzed with the finite element model.

以阻力墙的形状及位置参数为主要设计指标，利用建立的有限元模型，分析了阻力墙参数对汽车曲轴模锻成形的影响。

A description is made on the problems of open die forging for synchronizer cone naves .

论述了同步器锥毂开式模锻存在的问题，提出了同步器锥毂闭式精锻新工艺和新型模具结构。

A2D model for analysis of the hot die forging process for the tie rod by finite element method is set up.

建立了连杆热模锻过程有限元分析二维模型，计算了热机械耦合结果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。