An investigation on multistage bending of blank sheet into cylindrical tube by experiment and numerical simulation

In this paper, one pair of punch and die was employed to experimentally investigate the pure bending of blank sheet into cylindrical tube by multistage process. The investigated material was hot-rolled HSLA370 with the thickness of 2 mm. Numerical simulation was conducted on bending and springback w...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2011-03, Vol.53 (1-4), p.145-155
Main Authors: Xia, Mingsheng, Yan, Qi, Zuo, Dungui, Xie, Jianqiang
Format: Article
Language:English
Subjects:
CAE) and Design
Computer simulation
Computer-Aided Engineering (CAD
Engineering
Hot rolling
Industrial and Production Engineering
Investigations
Laser beam welding
Mathematical models
Mechanical Engineering
Media Management
Multistage
Original Article
Plastic deformation
Roundness
Shape
Simulation
Springback
Tubes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, one pair of punch and die was employed to experimentally investigate the pure bending of blank sheet into cylindrical tube by multistage process. The investigated material was hot-rolled HSLA370 with the thickness of 2 mm. Numerical simulation was conducted on bending and springback with LS-DYNA solver. Results showed that multistage bending technique was an alternative way to produce cylindrical tubes. The sequence is described as . Gap width and roundness of C-tube (configuration like letter “C”) were two dominant parameters to evaluate the bending performance. The effects of blank positioning on both of them were investigated by means of numerical simulation. Laser-welded tubes meeting roundness and the tolerance limit of diameter were produced. Simulation revealed that effective plastic strain along circumferential direction was much low, mostly ranging between 0.03 and 0.05. Severe thinning and shape defects were not observed in the finished tubes. A numerical model was developed and its effectiveness was verified by a comparison between the predicted results and the corresponding experiments.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-010-2825-x