|Table of Contents|

Finite element numerical simulation analysis on section distortion in bending process of tube(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2015年05期
Page:
77-82
Research Field:
工艺与材料
Publishing date:

Info

Title:
Finite element numerical simulation analysis on section distortion in bending process of tube
Author(s):
ZHU Chenglong;  ZHANG Jie;  HE Kangkang;  LIU Ke
Beijing Aerospace Propulsion Institute, Beijing 100076, China
Keywords:
NC rotary draw tube bendingFEM numerical simulationsection distortion
PACS:
V434-34
DOI:
-
Abstract:
NC rotary draw bending process of tube is a widely used manufacturing method in industry. However, the whole process is a complex mechanics process with several factors coupling interaction. It usually results in section distortion, wrinkling, thickness variation and springback, which seriously affect the forming precision of the tube product. The present research is trying to use an FEM numerical simulation method to simulate the manufacture process, and then to detect the effect of process parameters (such as friction coefficient between tube and molds, load of pressure die, feeding percents of tube, etc.) on the bending forming of tube. The current research builds an FEA simulation procedure under ANSYS / LS_DYNA environment, and develops a simplified analytical method to validate the FEM process. Based on such FEM procedure, the research computes manufacturing process of tube bending was calculated with different technological parameters. The effect of

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