|
Abstract：
|
|
The forming of hollow steps shaped part by the extrusion forming process is a difficult problem.The law of metal flow can not be clearly understood,and the formed part also can not be easily taken out.A new method which adopts clamping device was introduced.The part was formed when device folds,while taken out when device unfolds.Based on the analysis of hollow steps part extrusion,the entire process simulation of tow kinds stock extrusions were carried out using finite element software DEFORM,in 4 time steps of 40,55,278,500.The law of metal flow was obtained,and found out the column was the best shape for stock.Moreover,the load-stroke curve for all steps and X-load curve were achieved in order to optimize the mold forming parameters.Finally the experiment was done according to the parameters of simulation and qualified part was obtained.
|
|
Funds：
|
|
湖北省科委科技攻关计划项目(2005AA101C36)
|
|
AuthorIntro：
|
|
|
|
Reference：
|
[1]王大勇,田孝飞.端子冷挤压工艺及模具设计研究[J].锻压技术,2006,31(5):107-109.
[2]贾俐俐.挤压工艺及模具[M].北京:机械工业出版社,2004.
[3]洪慎章.冷挤压实用技术[M].北京:机械工业出版社,2005.
[4]翟德梅.挤压工艺及模具[M].北京:化学工业出版社,2004.
[5]王华昌,王冠,龙满林,等.塑性加工中的一种广义有限元方法[J].哈尔滨工业大学学报,2003,35(1):21-24.
[6]欧阳资恩,胡蓉.REV100注塑-吹塑机合模机构设计分析[J].塑料科技,2007,35(4):66-69.
[7]宋蓓莉,石端伟,朱惠华,等.RD400C冷室压铸机合模机构的设计及有限元分析[J].铸造技术,2004,25(8):631-633.
[8]彭巍,赵玉民,杨金娥.车用发电机磁极的精密成形技术[J].模具制造,2006,(3):23-25.
|
|
Service：
|
|
【This site has not yet opened Download Service】【Add
Favorite】
|
|
|
|
Copyright Forging & Stamping Technology.All rights reserved