Open AccessAssessment of frictional performance of deep drawing quality steel sheets used in automotive industry
Author(s) -
Tomasz Trzepieciński,
ĽUBOŠ KAŠČÁK
Publication year - 2022
Publication title -
technologia i automatyzacja montażu
Language(s) - English
Resource type - Journals
eISSN - 2450-8217
pISSN - 1230-7661
DOI - 10.7862/tiam.2022.1.4
Subject(s) - lubrication , materials science , surface roughness , tribology , automotive industry , friction coefficient , composite material , surface finish , deep drawing , coefficient of friction , lubricity , metallurgy , engineering , aerospace engineering
This article presents the results of tribological tests of three grades of deep-drawing quality steel sheets used in the automotive industry. The frictional properties of the sheets were anaysed using a strip drawing test. Friction tests were performed under dry friction and lubrication conditions using machine oil L-AN 46. Additionally, friction tests of pre-strained sheets were also carried out. Cylindrical countersamples with different surface roughness were used. Relationship between the surface roughness, pressure force, lubrication conditions and the value of the friction coefficient were evaluated. It was found that increasing the roughness of the countersamples increased the value of the friction coefficient in both friction conditions analysed. The greater the pressure force, the lower efficiency of lubrication. The effectiveness of reducing the value of the friction coefficient ranged from 20-30% and depended on the pressure force, roughness of the countersamples and the degree of specimen pre-straining.