Formulation of Forming Load in V-Bending
Dept. of Mechanical Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
A novel method is described to calculate the forming load in V-bending by a press brake. The data of forming load are collected by FEM analysis. With an increase of the punch stroke in V-bending, the forming load increases gradually after the elastic limit, and then decreases after showing the maximum value. The proposal formulation to trace the variations in the forming load curve includes the calculating method of the load of the elastic limit, the maximum load in air bending and the variations of the forming load before/after the bending stroke of the maximum load. The calculated precision is confirmed by comparing with the measured load-stroke curves in V-bending with a press brake.
© Owned by the authors, published by EDP Sciences, 2016
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