Simulation of the wire straightening process

摘要

In various processes of metal material deformation and forming there is still room for optimisation with regard to the quality of the finished product. This situation is difficult to improve on account of a number of factors: the elastic-plastic behaviour of workpieces to be formed or deformed; an absence or shortage of relationships between process parameters; the kinematics of operations; tool/workpiece interactions; and process technology steps with multiple feedback. Straightening on roller-type straightening machines can be regarded as representative of this group of processes. Efforts to obtain process material with an acceptable degree of straightness have focused until now on a method of trial and error, ie making subjective changes to the settings of adjustable straightening rollers on a straightening unit while keeping a constant watch on the emerging process material.