Testing of tight crimped joint made on a prototype stand

Abstract

The paper presents a project of a prototype solution of a device for making inseparable crimped joints consisting in forming the material of two elements to be joined to each other with the use of punches. The work contains the assessment and analysis of the joints made in the stand with the use of various forming tools. Furthermore, the paper presents the analysis of the characteristic features of the new joints, as well as dependences in strength tests. The elements joined on the machine had been made of 5754 aluminium. This material and the presented joint are used in the construction of heat exchangers, such as water, oil coolers or condensers in the automotive or aircraft branch.