| Texto completo | |
| Autor(es): |
Fernandes, Lucas de Martini
[1]
;
Lopes, Jose Claudio
[1]
;
Fonteque Ribeiro, Fernando Sabino
[1]
;
Gallo, Rubens
[2]
;
Razuk, Henrique Cotait
[2]
;
de Angelo Sanchez, Luiz Eduardo
[1]
;
de Aguiar, Paulo Roberto
[3]
;
de Mello, Hamilton Jose
[1]
;
Bianchi, Eduardo Carlos
[1]
Número total de Autores: 9
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ UNESP, Dept Mech Engn, Coll Engn, BR-17033360 Bauru, SP - Brazil
[2] Fed Univ Technol Parana UTFPR, Dept Mech Engn, BR-86300000 Cornelio Procopio, PR - Brazil
[3] Sao Paulo State Univ UNESP, Coll Engn, Dept Elect Engn, BR-17033360 Bauru, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 104, n. 5-8, p. 2783-2793, OCT 2019. |
| Citações Web of Science: | 3 |
| Resumo | |
Due to the characteristics of the grinding process, thermal damage may occur in the workpiece surface, resulting in the rejection of a component and considerably increasing the production costs. This study aims to analyze the heat fluxes, energy partition, and temperatures during surface grinding process with both conventional and MQL lubrication. Through the proposed analysis, the heat fluxes and maximum temperature can be predicted, enabling the avoidance of thermal damages and increasing the efficiency of the process. A comparison between the calculated and experimental value has shown that the difference is acceptable for various situations, in the order of 4.72% for the conventional method and 7.38% for the MQL method. A thermal model was developed. The transient two-dimensional heat diffusion equation was discretized by finite volume method in space and explicit discretized in time. The heat fluxes were estimated using inverse problem technique of heat transfer aiming the obtainment of the temperature of certain workpiece points. A comparison of the methods of lubrication showed that the conventional method was way more efficient than MQL, presenting considerably lower total heat flux and maximum reached temperature and any kind of thermal damage wasn't observed. On the other hand, thermal damage occurred in the workpieces. Also, clogging phenomenon in the grinding wheel surface after the process in MQL condition was observed. (AU) | |
| 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 |