Paper Title:
Study of NC Cold Tube Bending Spring-Back Characteristics
  Abstract

The unloading spring-back of tubes during its manufacturing process shows a strong nonlinearity, which greatly influences the precision of parts. In this paper, the strain distribution of bending tubes was analyzed based on the elasto-plasticity theory, and the theoretical equation for spring-back of tubes was derived. The numerical simulation model for cold tube-bending process was developed with prediction error of 9% compared with experimental results, indicating high reliability of the model. The 12Cr1MoV and 20G tubes were used to analyze the effects of bending angle, bending radius and bending speed on the spring-back of tubes. The prediction equation of spring-back was built, which shows that the spring-back tendency was in accordance with theoretical analysis results. The simulated results show that the spring-back angle is linearly proportional to the bending angle within a certain range. In addition, it is proportional to the relative bending radius and the bending speed.

  Info
Periodical
Advanced Materials Research (Volumes 154-155)
Edited by
Zhengyi Jiang, Xianghua Liu and Jinglong Bu
Pages
202-208
DOI
10.4028/www.scientific.net/AMR.154-155.202
Citation
Y. N. Lai, S. L. Ren, Z. L. Li, J. T. Gu, G. F. Wu, "Study of NC Cold Tube Bending Spring-Back Characteristics", Advanced Materials Research, Vols. 154-155, pp. 202-208, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Muhammad Arsyad Suyuti, Rusdi Nur, Asmeati
Chapter 1: Materials Engineering, Chemical Technologies and Materials Processing
Abstract:This study presents the influence of punch angle on the spring back behavior of the medium carbon steel under V-bending through experimental...
157
Authors: Е.V. Eskina, E.G. Gromova
Chapter 1: Numerical Simulation of Physical and Chemical Processes
Abstract:The paper describes the method of manufacture of profiles in cramped bending conditions using polyurethaneThe scope of studies included...
186