Selected aspects of SPR copper sheets joining
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Abstract
The self-piercing riveting SPR for sheet metal joining owes its development mainly to the changing requirements of the automotive industry due to the use of new materials, especially for the body parts, and the need for their efficient joining. The observed trends to use for the structural components lightweight, yet durable, aluminum alloys, composites, plastics, etc., are examples of this tendency. The paper presents selected aspects of the attempts to use the SPR method for joining copper sheets. A numerical modeling of the process of joint formation and its loading was introduced. These analysis were verified experimentally using an industrial set-up consisting of a mobile unit for riveting equipped with a specially designed components for a measuring track settting. Simulation were carried out with commercial software based on the finite element method MSC.Marc, dedicated for the non- linear analysis. The presented results are of a qualitative nature and are the beginning of activities undertaken in cooperation with the production company, aimed at optimizing and developing internal guidelines for the design of copper sheet joints.
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