<b>Influence of different dielectrics fluids on the surface integrity of high speed steel

Autores

  • Jean Robert Pereira Rodrigues Universidade Estadual do Maranhão
  • Paulo Ricardo Almeida Forte Universidade Estadual do Maranhão
  • Adilto Pereira Andrade Cunha Universidade Estadual do Maranhão
  • Rubens Soeiro Gonçalves Universidade Federal de Itajubá
  • Mirian de Lurdes Noronha Motta Melo Universidade Federal de Itajubá.
  • Carmem Célia Francisco do Nascimento Instituto Federal de Educação, Ciência e Tecnologia

DOI:

https://doi.org/10.4025/actascitechnol.v40i1.35386

Palavras-chave:

machining by electrical discharges, dielectric fluid, microcracks and heat affected zone.

Resumo

Machining by electrical discharges is a huge process for the machining of complex shapes in materials that are electrical conductors, in particular for those of high hardness, difficult to be machined by conventional processes. Its unique feature of using thermal energy to machine parts has been a distinctive advantage in the manufacture of moulds, dies, aerospace components, and surgical, and of course, it can be widely used in the industry of tooling in the manufacture of geometric features, such as, for example, cavities narrow and deep, grooves, thin-walled, and small corner radii. One of the materials that are widely machined by spark-erosion is the tool steel (ABNT M2, has good toughness, hardness and abrasion resistance being indicated for the manufacture of stamping dies. The present work describes experiments conducted on a modern machine eletroerosiva using the electrode-tool of electrolytic copper in the machining of parts from high-speed steel (ABNT M2 to investigate the effect of different fluid dielectric about the generation of microcracks and heat affected zone (HAZ). A review of the comparative shows that the surfaces machined with dielectric fluid “A†have low values in the length of the microcracks compared with the other fluids. In the meantime, the machined surfaces with the dielectric “B†have a lower density of microcracks.

 

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Publicado

2018-07-01

Como Citar

Rodrigues, J. R. P., Forte, P. R. A., Cunha, A. P. A., Gonçalves, R. S., Melo, M. de L. N. M., & Nascimento, C. C. F. do. (2018). <b>Influence of different dielectrics fluids on the surface integrity of high speed steel. Acta Scientiarum. Technology, 40(1), e35386. https://doi.org/10.4025/actascitechnol.v40i1.35386

Edição

Seção

Engenharia Mecânica

 

0.8
2019CiteScore
 
 
36th percentile
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0.8
2019CiteScore
 
 
36th percentile
Powered by  Scopus

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