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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effects of texturing the rake surfaces of cemented tungsten carbide tools by ultrashort laser pulses in machining of martensitic stainless steel

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Author(s):
Bertolete, M. [1, 2] ; Barbosa, P. A. [1, 3] ; Machado, A. R. [4, 5] ; Samad, R. E. [1] ; Vieira, Jr., N. D. [1] ; Vilar, R. [6] ; de Rossi, W. [1]
Total Authors: 7
Affiliation:
[1] Inst Pesquisas Energet & Nucl, Ctr Lasers & Aplicacoes, BR-05508000 Sao Paulo - Brazil
[2] Univ Sao Paulo, Dept Engn Prod, Escola Engn Sao Carlos, Trabalhador Sao Carlense Av 400, BR-13566590 Sao Carlos, SP - Brazil
[3] Univ Fed Espirito Santo, Dept Engn Mecan, BR-29075910 Vitoria - Brazil
[4] Univ Fed Uberlandia, Fac Engn Mecan, BR-38408902 Uberlandia, MG - Brazil
[5] Pontificia Univ Catolica Parana, Programa Grad Engn Mecan, BR-80215901 Curitiba, Parana - Brazil
[6] Univ Lisbon, Inst Super Tecn, P-1049001 Lisbon - Portugal
Total Affiliations: 6
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 98, n. 9-12, p. 2653-2664, OCT 2018.
Web of Science Citations: 4
Abstract

The present study investigates the effect of texturing the rake face of uncoated cemented tungsten carbide tools by ultrashort laser pulses for tribological improvement. In this sense, four parallel micro-groove texturing patterns were created on the rake face of the cutting tools, beginning at a variable distance from the cutting edge. The pitch between grooves was also varied. Friction force, machining force, chip features, and surface roughness were evaluated from semi-orthogonal dry turning in the reference (non-textured) and textured tools. The results showed friction force reduction by nearly 40%; chip deformation decrease around 21%; machining force reduction by 20%; and surface roughness by 46 and 28% for Ra and Rz, respectively, for the best texturing pattern. (AU)

FAPESP's process: 13/26113-6 - Micromachining with ultrashort laser pulses applied to the production and control of optofluidic circuits
Grantee:Wagner de Rossi
Support Opportunities: Research Projects - Thematic Grants