Volume 46, No 2, 2024, Pages 346-354
Download full text in PDFA Method for Predicting Wear Behaviours of Roller Linear Guides Under the Influence of the Relative Humidity and Ambient Temperature
Authors:
Hung-Van Pham 
,
Huyen-Nguyen Thi Ngoc
DOI: 10.24874/ti.1655.04.24.06
Received: 1 April 2024
Revised: 9 May 2024
Accepted: 10 June 2024
Published: 15 June 2024
Abstract:
The wear of roller linear guides (RLG) has a direct impact on the tooling precision of CNC machine tool. Wear depends on working conditions: load P, speed V, work environment which includes relative humidity RH and ambient temperature T. In this paper the mathematical regression function describes the relationship between the wear amount U of RLG with the three factors P, RH and T built on the basis of experimental research. The results show that the wear regression function U has an exponential form, which is consistent with experiments about the influence of climatic environment. It describes the simultaneous impact of three factors P, RH, T that affect wear of CNC machine tool rolling guide. With Vietnam's hot and humid environmental conditions, relative humidity RH% = 51 - 99%, temperature T = 15 - 450C, and load P = 2 - 6kgf, the influence on rolling guide wear of normal load P is 2 times the humidity RH% and about 3.8 times that of temperature T. Therefore, it is possible to predict the change in wear amount according to two environmental factors when loading P at certain values.
Keywords:
Wear of roller linear guides, Tribology in roller linear guideways, Relative humidity, Tropical monsoon climate
