成形模

Springback is considered in the design of the bending die , since there is a big bending radius .The third die is wedge clicker die .

第二副模具为弯曲模，由于有一个较大的弯曲半径，所以在设计中主要考虑回弹因素对成形精度的影响。

Springback isconsidered in the design of the bending die ,since there is a big bending radius .The thirddie is wedge clicker die .

第二副模具为弯曲模，由于有一个较大的弯曲半径，所以在设计中主要考虑回弹因素对成形精度的影响。

With the developed finite deformation elasto-plastic user element and remeshing system, the RR and TR forming processes of the Crankshafts, the extrusion process of the Aluminum-skirt and die forging process of the Wedge were simulated.

利用开发的有限变形弹塑性用户单元和网格重划系统，成功地模拟了曲轴TR法和RR法弯曲镦锻、铝裙挤压以及楔块模锻等的成形过程，模拟结果与实际相吻合。

The deeply theoretical and experimental research on drawing technology of curved die in this paper enriches and develops the fundamental theories ofstamping technology.

本文对曲面凹模拉深工艺进行了深入的理论和试验研究，其结果丰富和发展了冲压成形基础理论。

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。

Furthermore, the forming die can realize single punch extrusion according to different die carriers and equipment, double punch extrusion in opposite directions, as well as the extrusion of the helical cylindrical gear with big helix angle.

本发明结构简单，易于制造、安装，可根据不同模架和设备实现单个冲头挤压，也可实现两个冲头对向挤压；可以实现大螺旋角齿轮的挤压；成形力小，下料精度要求低。

The influence law of the main influential factors, such as friction coefficient and cone angle , on the forming force were studied.

研究了主要因素，如摩擦和模锥角对成形载荷的影响。

Analysis shows that choosing tube material with little Bauschinger effect and decreasing the friction coefficient between tube and die will help to improve the formability of tubes in the process and enlarge the usable range of curling radius.

分析表明，选用Bauschinger效应较弱的管材且设法减小管与圆角模之间的摩擦系数有助于提高管件内翻成形性并增大卷曲半径的可用范围。

The simulation results shows that when the hydroforming for real axle housing needs two bulge processes and the specific value of the two bulge ratio is about 1, the result is the best one; To obtain an appropriate route of loading force need adjust internal pressure and axial compression force for many times and according to the failure, the size of the two forces which has been mentioned can be rapidly and rationally adjusted; Because of good greasing conditions influencing largely, reducing the friction between tube blank and die inside surface as well as possibly not only makes more materials flow into the bulge area but effectively diminishes the axial compression force; The good or bad characteristics of tube blank material is also one of the decisive factors and when material is selected, we first consider its' formability.

模拟结果表明，当后桥壳需要两次进行胀形，两次胀形比比值约等于1时，胀形结果最好；合适的加载路径要经过多次调试，能根据胀形缺陷对内压力和轴向力的大小进行迅速地合理调整；良好的润滑环境对后桥壳液压胀形的影响巨大，要尽量减小管坯与模腔内壁的摩擦力，不但使更多的材料流入胀形区，而且能有效的降低轴向力的大小；管坯材料性能的好坏也是影响胀形的决定性因素，选材时首先要考虑材料的成形性。

The design flow out of the nose is the key to the design, and the structure of the reasonableness of the extrusion products directly affect the quality and production , we must improve the quality of products, improve product yield and efficiency needed from the extruder the melting, forming and cooling curing these three areas to can use for mapping, using Pro / E model, and then use ANSYS finite element analysis software to mold the strength of the nose, a nose MasterCAM by the end of the simulation process of more modern digital technology continues to improve significantly reduce the loss in the test mode, and from product quality, productivity and efficiency is also a very good improvement.

流道设计是挤出机头设计的关键，其结构的合理性直接影响到挤出制品的质量和生产效率。所以要改进产品的质量，提高产品的产量和效率就需要从挤出机的熔融、成形和冷却固化这三方面加以研究。可以使用AutoCAD进行绘图，用Pro/E建模，再运用ANSYS有限元分析软件进行模具机头的强度分析，最后用MasterCAM进行机头的仿真生程。通过以上的现代数字化技术的不断提高大大减少了试模中的损耗，并且从产品的质量、产量和效率上也有了很好的改进。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。