A strategy for achieving accurate bending by multi-pass laser line heating
by P.P. Dutta; U.S. Dixit; K. Kalita
International Journal of Mechatronics and Manufacturing Systems (IJMMS), Vol. 10, No. 4, 2017

Abstract: Laser bending has emerged as a promising technique to bend sheet metals by thermal residual stresses in the last two decades. Several mathematical models are available to predict the bend angle after the laser bending process. However, due to the limitations in the mathematical models and precision of input parameters, the sufficiently accurate prediction of bend angle is not possible. In this work, a strategy is proposed for choosing the parameters of multi-pass laser line heating for obtaining an accurate bend angle when the accuracy of prediction is known. The guidelines have also been provided for ascertaining the accuracy of prediction. The strategy is verified with experiments for three different materials.

Online publication date: Tue, 02-Jan-2018

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