NDLI: Finite element analysis of flange-forming direction in the hole flanging process

Content Provider	Springer Nature Link
Author	Thipprakmas, Sutasn Phanitwong, Wiriyakorn
Copyright Year	2011
Abstract	The hole flanging process, in which a pre-holed workpiece is expanded by a larger punch, is frequently used in many industries. However, due to the large number of process parameters and their complicated relationships, poor flange edge squareness is commonly generated and results in an increase of secondary operation. In this study, to improve the quality of flange parts, finite element method (FEM) was used to investigate the flange-forming mechanism and effects of upward and downward burr orientation flange-forming directions. Laboratory experiments were performed to validate the accuracy of the FEM simulation results. The FEM simulation results clearly explained the flange-forming mechanism, as well as the effects of flange-forming direction, based on stress distribution analysis. Upward and downward burr orientation flange-forming directions were suitably applied for large and small hole expansion ratios, respectively. In addition, the effects of other process parameters related to the flange-forming direction, including punching clearance, flange thickness, and hole expansion ratios, were also investigated. The FEM simulation results showed good agreement with the laboratory experiments. These results showed that to achieve good squareness at the flange edge, the use of upward and downward burr orientation flange-forming direction and its relation to the other process parameters need to be considered.
Starting Page	609
Ending Page	620
Page Count	12
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	61
Issue Number	5-8
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-11-12
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hole flanging Flange-forming direction Burr orientation Punching Hole expansion Finite element method Computer-Aided Engineering (CAD, CAE) and Design Mechanical Engineering Production/Logistics/Supply Chain Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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