Surface roughness of two-frequency elliptical vibration texturing (TFEVT) method for micro-dimple pattern process

Rendi Kurniawan, Gandjar Kiswanto, Tae Jo Ko

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)

Abstract

This study presents a two-frequency elliptical vibration texturing (TFEVT) method that adds elliptical vibration cutting (EVC) to a conventional texturing (CT) method. The TFEVT method improves the surface roughness compared to the CT method during a micro-dimple texturing process. Kinematic analysis and a theoretical surface roughness model are presented based on the effect of the tool edge radius. The effect of this radius cannot be neglected since it is nearly equal to the undeformed chip thickness at the micro scale. The replication of the tool edge radius profile, the effect of the material spring back, and the residual error were also considered in the surface roughness model. The surface roughness of a micro-dimple also includes the replication of the tool edge radius profile, which can be determined by using a replication technique. The deflection of material spring back is formulated according to the value of the minimum principal stress in the tertiary deformation zone between the flank face and the machined surface, and the plastic strain value is determined based on elasto-plastic deformation theory. Experimental and simulation results were compared to validate the surface roughness model.

Original languageEnglish
Pages (from-to)77-95
Number of pages19
JournalInternational Journal of Machine Tools and Manufacture
Volume116
DOIs
Publication statusPublished - 1 May 2017

Keywords

  • Micro-dimple pattern
  • Surface roughness
  • Two-frequency elliptical vibration texturing method

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