We considered that all of the failure causes are associated with stress occurring and impact of components in the die components running or its service life, etc。 [8]。
4。Conclusion
In order to prevent the defect of die design and making, this study developed the practical and adaptive die assembling and components。 This study also could be taken optimization from the theoretical back ground, data base and our field experiences and FEM simulation, etc。
The results are as follows:
(1)FEM simulation of strip process layout by DEFORM programming was necessary, not only to the design and its making of the die, but also to the tryout and its revision after the die developing。
(2)The die design was performed as a optimum result with the least defects on the die developing。
(3)The trouble shooting was performed as a successful method of tryout after die making。
(4)For the increasing the utility ratio of material of production part, the scrapless type progressive die became to the optimum design result。
Acknowledgements
This work was supported by the Brain Korea 21 project in 2003。
References
[1] S-B。 Sim, S-T。 Lee, Y-S。 Song, A study on the development of practical and adaptive progressive die for very thick sheet metals, Korean Soc。 Manufact。 Technol。, KSMT 1 (1) (2003) 63—70。
[2] S。-B。 Sim, S。-K。 Park, Development of the practical and adaptive die for sheet metals(1), in: Proceedings of the KCORE Conference, May 1999, pp。 141—148。
[3] S。-B。 Sim, Y。-S。 Song, Development of the practical and adaptive die for sheet metals(2), in: Proceedings of the KCORE Conference, May 1999, pp。 149—155。
[4] A。K。 Karl, Innovations in die design, SME (1982) 71—99。
[5] M。H。 Moto, Pressworking and Die Making, Higan Tech。 Paper Co。, 1975, pp。 121—180。
[6] T。 Hutota, Databook of Pressworking Process Design, Press Tech。, vol。 7, no。 13, Higan Tech。 Paper Co。, 1969, pp。 1—201。 [7] F。E。 Donald, A。R。 Edward, Techniques of Pressworking Sheet Metal, Prentice Hall, Inc。, 1974, pp。 37—93。
[8] K。 Serope, Tool and die failures, ASM (1982) 18—31摘要级进模对于U型弯曲钣金生产是一个非常具体的分工,这项研究揭示了板料成形过程中的多成形模具切断式送料系统。对板材U型弯曲过程的有限元模拟变形是工艺布局设计的首要表现。下一道工序的模具开发是根据模具的发展序列研究,即模具结构,模具制造,模具材料加工条件,部分模具零件热处理,技术诀窍等决定的。
本文研究的特点是通过对程序建模的多级无废料级进模的模具开发,零件部件,图纸的Auto LISP,CAD/CAM的应用,普通机床操作和修改调试的研究。论文网
关键词:
渐进式的中心载波;有限元模拟;条工艺布置,U型弯曲过程;试用。
1。简介
级进模是通过凸模运动在两个或两个以上工位进行一系列的基础金属板材加工。在制造业领域中优化模具设计已经成为大规模制造生产的目的。因此,这项研究需要一个完整的工具数据、实地经验和理论指导。根据上面的因素,这项研究可以实现最佳的模具设计,通过有限元模拟,I-DEAS建模和模具制造的实用方法,此外,主要是通过试用达到最少缺陷的目的。
2 模具设计来;自]优Y尔E论L文W网www.youerw.com +QQ752018766-
2。1 模具开发系统
图1显示了模具开发系统的网络
在系统中,可以知道生产工程、模具制造技术、标准化、故障排除、人手采购、工具材料等等环节,与所用软件和其理论背景相连。
图2显示芯片组件Auto-CAD在Windows环境下现有Autolisp语言程序绘画之一。