Fuzzy model for Laser Assisted Bending Process

EXPERIMENTAL AND NUMERICAL INVESTIGATION ON LASER BENDING PROCESS

Laser bending is an advanced process in sheet metal forming in which a laser heat source is used to shape the metal sheet. In this paper, temperature distribution in a mild steel sheet metal is investigated numerically and experimentally. Laser heat source is applied through curved paths in square sheet metal parts. Finite element (FE) simulation is performed with the ABAQUS/CAE standard softwa...

Laser Assisted Bending for Efficient Light-weight-production

Currently hot-bending of sheet metals is generally avoided. If absolutely necessary, oven-heating is usually used, with the disadvantage of unacceptable heating and cooling times, big energy input, handling problems, and change of material parameters. Inductive heating is better but it still has the problem of a large heated area and the fact that for thin sheet metals high frequencies are need...

A process model for air bending

A so called 'three-section' model for air bending is presented. It is assumed that a state of plane strain exists and that Bernoulli's law is valid. The material behaviour is described with Swift's equation, and the change of Young's modulus under deformation is addressed. As compared with other models, the model described in the paper is capable of generating information such as required punch...

Applying Fuzzy Logic Model for Bending Rigidity Evaluation of Woven Fabrics

Laser Micro Bending Process of Ti6Al4V Square Bar

Laser micro bending process of Ti6Al4V square bar are carried out using a 3D thermo-mechanical finite element analytical model (FEM). The transient temperature fields, displacement fields, stress fields and strain fields are obtained and analyzed. The results show that the bending angel during laser micro bending process is in good agreement with experimental measurements. The effects of proces...