Development of mathematical model of cold welding in detachable connections

1Boiko, Yu.S
1Oles Honchar Dnipro National University, Dnipro, Ukraine
Kosm. nauka tehnol. 2002, 8 ;(Supplement1):111-113
Publication Language: Russian
Abstract: 
It is ascertained that at assembly and trial of pneumahydraulic systems (PHS), detachable seam of connection after removal from them the efforts of a tightening do not lose the air-tightness even in conditions of nominal loads. Basing on the theory of metal links and the carried out researches the calculations of diameter of a single spot of contact and actual square of contact depended on the pressure and from sort of processed material are done. The mathematical model is developed and offered which allows to judge about common character of the process cold weld in detachable connections, and also to select his optimal parameters.
References: 
1. Boiko Yu. S. Influence of cold welding on detachable joints with plastic lining. Kosm. nauka tehnol. Suppl., 7 (1), 117—119 (2001) [in Russian].
2. Man and Space: 2nd All-Ukrainian Young Scientific and Practical Conference with international participation: Abstracts. (NCAOMU, Dnipropetrovsk, 2000) [in Ukrainian].
3. Rossoshinsky A. A., Zaplitnaya A. T., Kislitsin V. M. The effect of pressure on the actual contact area in pressure welding. Avtomaticheskaja svarka, No. 7 (1969) [in Russian].

4. Sakhatsky G. P. Cold Welding Technology, (Mashinostroenie, Kiev, 1970) [in Russian].