Two crucial suggestions on tool paths in slow-tool-servo diamond cutting of micro-structured functional surfaces. (9th June 2023)

• Record Type: Journal Article
• Authors: Guo, Pan; Liu, Mingyu; Zhou, Yuanping; Xiong, Zhiwen; Zhang, Shaojian; To, Suet
• Is Part Of: Journal of manufacturing processes. Volume 95(2023)
• Page Start: 415
• Page End: 420
• Publication Date: 2023-06-09
• Subjects: Ultra-precision machining -- Micro-structured functional surface -- Tool servo tracking error -- Tool servo induced vibration -- Tool path; Production management -- Data processing -- Periodicals; Manufacturing processes -- Periodicals; Procestechnologie; Productietechniek; Production -- Gestion -- Informatique -- Périodiques; Fabrication -- Périodiques; Manufacturing processes; Production management -- Data processing; Periodicals; 670.5
• DOI: 10.1016/j.jmapro.2023.04.025
• Languages: English
• ISSNs: 1526-6125

Abstract

Abstract: In ultra-precision machining (UPM) of micro-structured functional surfaces (μ-SFS), tool servo dynamic errors (tool servo tracking error and tool servo induced vibration) would deteriorate surface quality as two crucial issues. At the machined surface, the tool servo tracking error manifests as surface fluctuation due to its phase shift, and the tool servo induced vibration presents with periodical patterns. To eliminate or reduce the tool servo dynamic errors, theoretical and experimental results innovatively reveal that: (1) for the mathematical prerequisite the tool path should be at least fourth-order differentiable (snap), and (2) for the physical mechanism the second-order derivative of tool path (required acceleration) should be less than the rated acceleration provided by the tool servo. It is of significance that the study draws up two crucial suggestions on the tool path in UPM of μ-SFS to effectively improve surface quality. Graphical abstract: Unlabelled Image