Application of a Slide Hammer with a Magnetic Return Mechanism in Cold Glue PDR Technology: A Comparative Analysis and Features of Working with Aluminum Body Panels

Citation: Oleksandr Davydenko, "Application of a Slide Hammer with a Magnetic Return Mechanism in Cold Glue PDR Technology: A Comparative Analysis and Features of Working with Aluminum Body Panels", Universal Library of Engineering Technology, Volume 03, Issue 02.

Copyright: This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This article examines the specific features of applying Paintless Dent Repair (PDR) technology to aluminum body panels under conditions of increasing use of lightweight structural materials and the growing volume of insurance-related repairs associated with local damage without coating disruption. The study combines a systematic review of scientific publications with the development of an original contact-mechanical interpretation of the PDR process focused on the stability of impulse transmission under conditions of limited aluminum plasticity. The analysis addresses the mechanics of localized aluminum deformation, adhesion interactions, friction processes, and the deformation behavior of sheet materials during localized pulling operations. Particular attention is given to the theoretical reinterpretation of PDR as a controlled cyclic system of impulse–traction loading transmitted through an adhesive interface. In contrast to conventional approaches that primarily associate repair efficiency with the magnitude of the applied force or operator technique, the proposed approach considers process controllability as a systemic property determined by the reproducibility of the impact cycle, stability of adhesive contact, friction conditions, and tool kinematics. A comparative analysis of cold and hot glue applications is carried out with consideration of contact formation conditions, thermal and time-related factors, friction stability, and their influence on stress redistribution during localized deformation of aluminum panels. The scientific novelty of the study lies in the development of an original applied model of the PDR process with a magnetic return mechanism, within which the adhesive layer is interpreted as a medium of impulse transmission, while the magnetic return mechanism is considered as a stabilizing element ensuring reproducible cyclic loading and reducing variability of local stress states. The obtained results show that controllability of localized aluminum deformation emerges from the interaction between contact parameters, impact-cycle kinematics, and the mechanical limits of aluminum plasticity. The proposed approach expands the theoretical understanding of PDR processes under conditions of limited deformation stability and may be of interest to researchers in sheet metal forming and repair technologies, as well as to practitioners engaged in paintless dent removal.

Keywords: Paintless Dent Repair, Aluminum Body Panels, Cold Glue, Adhesion, Friction, Contact Mechanics, Impact–Traction Loading.

https://doi.org/10.70315/uloap.ulete.2026.0302015