A New Method of Producing Bend Angle by Applying Sheet Forging to V-Bending Process

Takayuki Aso; Takashi Iizuka; Tomoyuki Ota

doi:10.4028/www.scientific.net/KEM.651-653.1066

Paper Titles

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Extension of Process Limitations in Swing Folding by the Integration of a Modular Heating Unit
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Formability Evaluation of Grade 1 Titanium Sheets Depending on the Temperature by FE Analyses
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Non-Linear Numerical Simulation of Coiling by Elastic Finite Strain Model
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A New Method of Producing Bend Angle by Applying Sheet Forging to V-Bending Process
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Multi-Stage Cold Deep Drawing of Pure Titanium Square Cup
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Multiobjective Optimization Problem of Dieless Incremental Forming
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Robot Controlled Rotary Peen Forming by Laser-Assisted Distance Control
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Influence of a Single Bend in the Bumping Process of Large Radius Air Bending
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A New Method of Producing Bend Angle by Applying Sheet Forging to V-Bending Process

Abstract:

In actual manufacturing, some empirical method such as the bottoming technique is generally used in order to adjust the bend angles of products. In this study, a new method for controlling the bend angle in the V-bending process was attempted by applying sheet metal forging. In the experiments, three punches with lumps at the punch tip were used. These lumps were pushed into a bent section at the final stage of bending and were able to stretch the inside plane of the bent section. In both cases examined (using punches with one or two lumps at the tip), the bend angle decreased with an increase in punch displacement. This result shows new possibilities for controlling the bend angle by introducing plastic deformation to the bent section.