Reliable adhesive bonding process for round plug-in joints made of metallic materials in rough fabrication conditions

摘要

The manufacture and utilisation of tubular frame structures (e.g. as protective devices, railings or tubular grid frames in sports cars) have a long tradition in the fields of mechanical engineering and the building trade. A large number of joining techniques exist for the fabrication of such tubular frame structures, particularly for railings and safety barriers. The manufacture of tubular frame structures consisting of adhesive-bonded round plug-in joints is of great interest in the age of "multimate-rial design". The adhesive bonding joining technique is suitable as a practicable alternative with regard to both economic and functional aspects since it is possible to join not only identical materials but also different materials. A fabrication process which is based on adhesive bonding technology and permits the manufacture of round plug-in joints in a reliable process even in rough environmental conditions such as exist on building sites is necessary for permanently high-strength and computationally dimensionable joints. The process presented here combines the classical longitudinal joining and the adhesive injection in order to create a new type of joining method which guarantees the reliable and reproducible manufacture of adhesive bondinglayers and is characterised by a high degree of suitability for practice.