RESEARCH ON MULTI-PARAMETERS OPTIMIZAITON OF EXTRUSION OF IRREGULAR PROFILE WITH LARGE

b/q RATIO AND THIN WALL

Chen Zezhong

(National Die & Mold Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030)

Bao Zhongxu

(School of Mechanical & Electronic Engineering, Nanchang University, Nanchang 310029)

Ruan Xueyu

(National Die & Mold Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030)

Fu Lijun

(School of Mechanical & Electronic Engineering, Nanchang University, Nanchang 310029)

Abstract: It’s a combination optimization problem to optimize many technical parameters in profiles extrusion, and it’s very difficult to solve it using traditional arithmetic algorithm. A computer aided optimization model based on orthographic experiment, artificial neural network and genetic algorithm is built. Using this model and the results from CAD/CAE analysis, a mapping relation between extrusion quality and multi technical parameters is set up, and the difference resulted from different parameters could be predicted, and the best resolution of multi parameters could be obtained. Experimental results show that good accordance has been approved.

Key words: Aluminum profile  Extrusion  Multi parameters  Computer aided optimization

CLC No: TG379  TP391.7

江西省重点科技攻关项目和南昌大学“211”工程重点建设资助项目(102-2). Received 30127, received in revised form 20030901