A study of surface texturing using piezoelectric tool holder actuator on conventional CNC turning

Title
A study of surface texturing using piezoelectric tool holder actuator on conventional CNC turning
Author(s)
고태조쿠르니아완렌디
Keywords
LASER; STEEL
Issue Date
201302
Publisher
KOREAN SOC PRECISION ENG
Citation
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v.14, no.2, pp.199 - 206
Abstract
Tribology studies have recently shown the beneficial reduction in the friction coefficient of various mechanical components by application of surface texturing. This study presents a study of surface texturing using a piezoelectric tool holder actuator whereby the tool holder installed on a conventional computerized numerical controlled (CNC) machine lathe. The tool holder used in surface texturing a workpiece surface, yields average strokes up to 26 ?m and has a natural frequency of approximately 480 Hz. A piezo actuator of 15 mu m maximum displacement was utilized, and a single parallel four-bar flexure hinge mechanism magnified the input displacement from the piezo actuator by an amplification ratio of 3:1. In this study, a piezo actuator that operated under the open-loop condition, in modulation frequency range from 100 Hz to 135 Hz, was imposed to cut into the workpiece surface to build a pattern of dimples. Moreover, the characteristics of the dimple-pattern topography were investigated by varying the spindle rotation rate between 30 rpm and 100 rpm at constant modulation frequency of 120 Hz. According to the experimental results, Al 6061-T6 and AISI 1045 were successfully textured by using the piezoelectric tool holder actuator. The results showed that the maximum errors of the dimple feature on Al 6061-T6 and AISI 1045 were approximately 10.14% and 47.97%, respectively, between the analysis and experimental results.
URI
http://hdl.handle.net/YU.REPOSITORY/26487http://dx.doi.org/10.1007/s12541-013-0028-8
ISSN
2234-7593
Appears in Collections:
공과대학 > 기계공학부 > Articles
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