Title of Paper:Surface Texturing of Polyimide Composite by Micro-Ultrasonic Machining

Hits:

Affiliation of Author(s):机电学院

Journal:JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

Key Words:friction micro-dimple micro-ultrasonic machining surface texture ultrasonic motor

Abstract:In this study, micro-dimples were prepared on a polyimide composite surface to obtain the dual benefits of polymer materials and surface texture. Micro-ultrasonic machining is employed for the first time for micro-dimple fabrication on polyimide composite surfaces. Surface textures of simple patterns were fabricated successfully with dimple depths of 150 mu m, side lengths of 225-425 mu m, and area ratios of 10-30%. The friction coefficient of the micro-dimple surfaces with side lengths of 325 or 425 mu m could be increased by up to 100% of that of non-textured surfaces, alongside a significant enhancement of wear resistance. The results show that surface texturing of polyimide composite can be applied successfully to increase the friction coefficient and reduce wear, thereby contributing to a large output torque.

ISSN No.:1059-9495

Translation or Not:no

Date of Publication:2018-03-01

Co-author:F70206528,F70206396

Correspondence Author:qns