Investigation of the effect temperature expansion of the material on the quality of the joint product under conditions of thermal exposure

Abstract

The article presents experimental studies of the influence of the heating temperature in the contact zone of the mating surface of parts when fastening a multielement joint. The research was based on the definition of the legitimacy of the proposed improved regulatory support for the calculation of assembly dimensional chains for obtaining a multielement connection with specified parameters under thermal exposure conditions. In this paper, the assembly dimension chain of a multielement connection was calculated using a probabilistic method without taking into account the influence of thermal expansions of the material and taking into account the effect of thermal expansion of the material. The results of the value of the closing link are presented, taking into account the effect of temperature expansion of the material when performing the assembly operations of the rotor of the feed pump under thermal exposure conditions.