Transactions of Nanjing University of Aeronautics & Astronautics
Laser Surface Textured PTFE Inhibitation for Stick-Slip Phenomenon Under Boundary Lubrication
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Abstract:
When the machine tool is in the start- and stop-stages， the stick-slip phenomenon will be observed and high-precision positioning， machining accuracy and fretting feed will not be guaranteed. The most critical reason is that there is the difference between the dynamic and the static friction coefficients. Textures with different area ratios are fabricated on the surfaces of the upper PTFE-based composite and the friction tests are carried out on a reciprocating tribotester under the boundary lubrication and flat-on-flat contact conditions. The results show that there exists an optimal textured area ratio of 19.6% that can minimize the difference between the dynamic and the static friction coefficients.
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This work was financially supported by the National Natural Science Foundation of China （No.51675268）.
Clc Number:
TH117
CHINA AERO-SCIENCES
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