Approbation of the Cylindrical Inductor System with a Puller Screen for Dent Removing in Sheet Metals
Background. External contactless removal of the deformed sections of the surface of car bodies, which, unlike the known analogs, requires disassembling the elements for the purpose of direct access from the inside of the removed dent, is an urgent demanded operation for many service stations. This operation, in its classical understanding (mechanically), has the following disadvantages: low speed of the removal operation, cost price and, as a rule, inability to preserve the car paint. The proposed method allows getting rid of many of the above disadvantages when performing the straightening operation.
Objective. The aim of the paper is to determine the work efficiency and practical approbation of a tool for magnetic-pulse treatment of metals – a cylindrical inductor system with a puller screen, for example, an external contactless removal of deformed sections of vehicle surfaces.
Methods. Using the technology of electromagnetic-pulse forming of metals (EMF) in the operations of external dent removal on the vehicle surfaces of car bodies, namely on the car door, with inductor system with a puller screen, – the EMF tool.
Results. The method of external contactless straightening of deformed sections of the surface of car bodies has been successfully tested. Controlled (dosed) power magnetic-pulse action that allows to carry out controlled deformation of sheet metal in the treatment zone when removing dents by a cylindrical inductor system with a puller screen has been practically realized.Conclusions. Practical possibilities of removing dents on the car door surface with an inductor system with a puller screen, – an effective tool for magnetic-pulse processing of sheet metals – have been experimentally demonstrated. The advantages of external contactless dent removing, using EMF technology have been demonstrated in practice. Unlike the known analogs, it doesn’t require disassembly of the elements for mandatory access from the inside of the removing dent, and this significantly reduces the time spent on the operation and allows preserving the paintwork.
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