Application of a wheel cleaning system during grinding of alumina with minimum quantity lubrication

Autor(es)

Lopes, Jose C. ^[1] ; Ventura, Carlos E. H. ^[2] ; Fernandes, Lucas de M. ^[1] ; Tavares, Andre B. ^[1] ; Sanchez, Luiz E. A. ^[1] ; de Mello, Hamilton J. ^[1] ; de Aguiar, Paulo R. ^[3] ; Bianchi, Eduardo C. ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Dept Mech Engn, Av Luiz Edmundo Carrijo Coube 14-01, Mailbox 473, BR-17033360 Bauru, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Mech Engn, Rod Washington Luis Km 235, BR-13565905 Sao Carlos, SP - Brazil

^[3] Sao Paulo State Univ, Dept Elect Engn, Av Luiz Edmundo Carrijo Coube 14-01, Mailbox 473, BR-17033360 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 102, n. 1-4, p. 333-341, MAY 2019.
• Citações Web of Science: 4

Resumo

High thermal loads generated during grinding of ceramic materials increase abrasive tool wear and damage workpiece quality. In this regard, the application of cutting fluid has been mandatory, although several researchers have been working to reduce oil consumption in such processes, as it increases the cost of the final product and is harmful to both people and environment. Among the alternatives, minimum quantity lubrication (MQL) has been increasingly investigated, even though clogging of the grinding wheel is prone to occur. In order to improve the cleaning of the abrasive tool during the process and reduce oil consumption, this paper proposes the investigation of the performance of MQL technique applied together with a wheel cleaning system, which consists of a compressed air jet directed to the wheel surface, during grinding of alumina. Different direction angles of the air jet were tested and conventional flood coolant as well as MQL alone were applied for comparison purposes. Flood coolant was the most efficient method regarding cleaning of the grinding wheel, decrease of diametral wheel wear, surface roughness, and average power followed by the use of MQL with an air jet directed to the wheel surface with an angle of 30 degrees. This latter arrangement, however, can become an option when the reduction of oil consumption is a priority, as it provides the best results when compared to the other air jet direction angle configurations. (AU)

• Processo FAPESP: 17/03789-5 - Aplicação de refrigeração do ar comprimido na limpeza da superfície de corte do rebolo na retificação do aço AISI 4340
• Beneficiário: André Bueno Tavares
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 15/10460-4 - Análise da friabilidade de grãos de CBN na retificação cilíndrica do ferro fundido nodular
• Beneficiário: Lucas de Martini Fernandes
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica