Experimental comparison of straight flanging and rotary die bending based on springback

Experimental comparison of straight flanging and rotary die bending based on springback

Springback in sheet bending is a well-defined phenomenon; however, variation of springback is difficult to control causing quality problems in especially mass-produced goods such as home appliances. As an alternative to straight flanging, the rotary die bending process offers reduced springback as w...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology Vol. 120; no. 7-8; pp. 4373 - 4386
Main Authors: Livatyali, Haydar, Turan, Salih Emrah, Birol, Feriha, Türköz, Mevlüt
Format: Journal Article
Language:English
Published: London Springer London 01-06-2022
Springer Nature B.V
Subjects:
Advanced manufacturing technologies
Appliance industry
Bending
CAE) and Design
Carbon
Clearances
Computer-Aided Engineering (CAD
Deformation
Design of experiments
Engineering
Flanging
Household appliances
Industrial and Production Engineering
Manufacturing
Mass production
Material properties
Mechanical Engineering
Mechanical properties
Media Management
Metal forming
Metal sheets
Methods
Original Article
Process parameters
Residual stress
Rolling direction
Springback
Stainless steel
Stainless steels
Strain hardening
Yield stress
Straight flanging
Rotary die bending
Springback
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Springback in sheet bending is a well-defined phenomenon; however, variation of springback is difficult to control causing quality problems in especially mass-produced goods such as home appliances. As an alternative to straight flanging, the rotary die bending process offers reduced springback as well as reduced geometric variation; however, there is little knowledge in the literature. The effects of process parameters on the springback behavior of straight flanging and rotary die bending as applied to home appliance side panels are investigated experimentally. For each flange bending method, effects of die radius, punch-die clearance, rolling direction, flange length, and material supplier on springback are tested on EN DC01 carbon and SAE 430 stainless steel sheets. A material-wise factorial experimental design was applied to investigate the factor interactions as well as the main effects using ANOVA. In both methods, die radius was the most dominant factor on springback, clearance being the second, and the inevitable material property variations being the third one. Nevertheless, in rotary die bending, springback values were smaller with significantly less scatter compared to straight flanging. Consequently, rotary die bending is a much more preferable process especially in mass production performed with narrow profit margins.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-022-09020-7