Tribofilm Formation As a Result of Complex Interaction at the Tool/Chip Interface during Cutting

Lubricants

German S. Fox-Rabinovich⁴  Iosif Gershman¹  Mohamed A. El Hakim⁵  Mohamed A. Shalaby²  James E. Krzanowski³ 

[1] Railway Research Scientific Institute, Moscow 105005, Russia; E-Mail:;Technical Research Center, Cairo 11461, Egypt; E-Mail:;Department of Mechanical Engineering, University of New Hampshire, Durham, NH 03824, USA; E-Mail:;Department of Mechanical Engineering, McMaster University, 1280 Main Street West Hamilton, ON L8S 4L7, Canada; E-Mail:;Faculty of Engineering, Ain Shams University, Cairo 11566, Egypt; E-Mail:

关键词: tribofilms;    cutting tool;    thermodynamic analysis;   

DOI  :  10.3390/lubricants2030113

来源: mdpi

【 摘 要 】

Tribofilms are dynamic structures that form at the interface during frictional sliding. These films play a significant role in friction control, particularly under heavy loaded/high temperature conditions, such as those found at the cutting tool/chip interface. The thermodynamic aspects of tribofilm formation are discussed here. Thermodynamic analysis of entropy production during friction shows that there are two types of tribofilms that affect the wear behavior of a cutting tool: (1) tribofilms forming as a result of the surface modification of the cutting tools with further tribo-oxidation; and (2) tribofilms that form as a result of material transfer from the contacting frictional body (the workpiece) during the tool/chip interaction. Experimental examples are presented, outlining the beneficial role of both types of tribofilms.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.