Influence of grinding parameters in the manufacturing of cemented tungsten carbide inserts on their performance in turning of a titanium alloy

• Grant number: 15/15622-2
• Support Opportunities: Research Grants - Young Investigators Grants
• Start date: May 01, 2017
• End date: July 31, 2021
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Carlos Eiji Hirata Ventura
• Grantee: Carlos Eiji Hirata Ventura
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated researchers: Armando Ítalo Sette Antonialli
• Associated research grant(s): 17/12304-5 - Multi-user equipment approved in grant 15/15622-2: CNC grinding machine for cutting insert preparation, AP.EMU; 17/12309-7 - Multi-user equipment approved in grant 15/15622-2: microscope for three-dimensional image analysis, AP.EMU
• Associated scholarship(s): 19/26313-1 - Influence of grinding parameters on surface roughness and edge chipping of cemented tungsten carbide inserts, BP.IC; 19/07259-6 - Characterization of the grinding wheel topography in grinding of cemented tungsten carbide, BP.IC

Abstract

After sintering, cemented carbide inserts are ground in order to improve the integrity of their edges, rake and flank faces. The importance of this step in the manufacturing chain of cemented carbide inserts is related to the influence of surface roughness on the friction in the cutting region and to the reduction of tool life due to edge chipping. Residual stresses must also be considered since they change insert surface properties, causing a reduction of its strength and eventual failure. These characteristics can be controlled by an adequate choice of grinding tool and parameters. Thus, a detailed investigation of the influence of these factors on the performance of the insert is important in order to properly design the manufacturing process and increase tool life. As a consequence, the present project aims to determine ideal grinding conditions to maximize tool life in turning of a titanium alloy for medical use, taking into account the difficulties involved to machine this kind of material. In this context, the causes for the obtained results from the grinding and turning tests will be investigated through the characterization of the ground insert, considering residual stresses, surface and edge roughness, crack formation, resultant microstructure and composition. At the end of the project, additional information for a correct design of grinding process of cemented carbide inserts will be obtained. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CRUZ, DENNIS COELHO; SORDI, VITOR LUIZ; HIRATA VENTURA, CARLOS EIJI. Surface analysis of WC-5%Co cemented tungsten carbide cutting insert after plunge-face grinding. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, v. 108, n. 1-2, MAY 2020. (15/15622-2, 17/12304-5, 17/12309-7)

PIVOTTO, L. B.; ANTONIALLI, A. I. S.; VENTURA, C. E. H.. Tribological aspects of tool wear during turning Ti-15Mo alloy with cemented tungsten carbide cutting inserts prepared with different surface finishes. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, v. 237, n. 1, p. 9-pg., 2022-04-07. (17/12309-7, 17/12304-5, 18/24614-1, 15/15622-2)

SAVELLA, FELIPE BERTOLOTTI; SANTOS PEREIRA, VICTOR WILLIAN; SHIKI, SIDNEY BRUCE; HIRATA VENTURA, CARLOS EIJI; SETTE ANTONIALLI, ARMANDO ITALO. Analysis of the effect of part geometry and cutting parameters over tool vibration and surface integrity on hard turning. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, v. 122, n. 9-10, p. 13-pg., 2022-09-21. (15/15622-2, 19/09667-4)

CARREIRA, L. A. S.; HASSUI, A.; VENTURA, C. E. H.. Energy Efficiency Assessment in Plunge-Face Grinding of Cemented Tungsten Carbide Cutting Inserts. INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY, v. N/A, p. 10-pg., 2023-05-04. (17/12304-5, 15/15622-2, 17/12309-7)

CRUZ, D. C.; SORDI, V. L.; VENTURA, C. E. H.. Assessment of the surface integrity of ground cemented tungsten carbide cutting inserts and its influence on tool wear in turning of ferritic nodular cast iron. CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY, v. 37, p. 10-pg., 2022-04-02. (17/12309-7, 17/12304-5, 18/24614-1, 15/15622-2)

CRUZ, DENNIS COELHO; CHRISTOFORO, ANDRE LUIS; SORDI, VITOR LUIZ; HIRATA VENTURA, CARLOS EIJI. Inducement of residual stresses in WC-5%Co cutting inserts by plunge-face grinding. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, v. 113, n. 1-2, p. 553-563, MAR 2021. (15/15622-2, 17/12304-5, 17/12309-7)

PARIS, D.; RUBIO, J. C. C.; CRUZ, D. C.; ANTONIALLI, A. I. S.; VENTURA, C. E. H.. An analysis of the surface roughness of Ti-15Mo alloy machined with uncoated cemented tungsten carbide cutting inserts with different geometries. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 44, n. 7, p. 9-pg., 2022-07-01. (17/12309-7, 18/24614-1, 15/15622-2, 17/12304-5)