WELDING WITH MICRO-JET COOLING AS A WAY TO IMPROVE THE MECHANICAL PROPERTIES OF MODE OF TRANSPORTATION SHAFT SURFACE
Author(s) -
D. Hadryś
Publication year - 2019
Publication title -
transport problems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.224
H-Index - 12
eISSN - 2300-861X
pISSN - 1896-0596
DOI - 10.20858/tp.2018.13.4.7
Subject(s) - mode (computer interface) , welding , jet (fluid) , automotive engineering , mechanical engineering , materials science , surface (topology) , engineering , structural engineering , aerospace engineering , computer science , operating system , geometry , mathematics
The use of surface welding with micro-jet cooling allows to control the structure of the surface layer. It is a way to significantly increase the mechanical properties (for example hardness) of the surface layer. The effect of this is to extend the life of the kinematic pair. The main aim of this paper was to determine the influence of using micro-jet cooling for surface welding on tribological properties (e.g., friction coefficient and weight loss). Results of traditional surface welding (without micro-jet cooling) were compared with results of surface welding with micro-jet cooling. In this case, the medium of cooling was argon and nitrogen. Hardness, time to seizure, friction coefficient, and specimen weight loss were compared. The results showed that the use of a suitable cooling medium for surface welding process could improve the tribological properties of the surface weld.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom