engleski

The influence of friction on the accuracy of bending

In manufacturing of working parts, by metal forming there are number of various methods, owing to sorts and largeness of parts as well as demands for form and accuracy that cause different procedures and ways of bending process. Elastic part of deformation causes aberration of form and accuracy in bending. The important criterion in validation of bended parts presents the aberration of bending angle. As a measure for angle accuracy it can be taken into account a relative error of bending angle. For the improvement of accuracy it is used the model that compensatee the mechanical spring back. The paper analysis the influence of press-break, die, workpiece geometry, product properties and friction on the accuracy of bending.

Bending; tool; part geometry; property of semiproduct; friction

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