Artigo De: orcid, scopus, cienciavitae

Long-term performance of stone-cutting tools

International Journal of Refractory Metals and Hard Materials

L.G. Rosa; J.C. Fernandes; P.M. Amaral — 2015 — Elsevier

Informações chave

Autores:

L.G. Rosa (Luís Manuel Guerra da Silva Rosa); J.C. Fernandes (José Jorge Lopes da Cruz Fernandes); C.A. Anjinho (Carlos Alberto Gancho Anjinho); A. Coelho (Adriano Manuel Sá Coelho); P.M. Amaral (Pedro Miguel Gomes Abrunhosa Amaral)

Publicado em

1 de janeiro de 2015

Resumo

This research work addresses the long-term performance − up to 5 square meters of area of cut − of diamond-impregnated segmented discs used for hard stone cutting. Comparative studies among “geometrically equal” tools were carried out through the assessment of their cutting behaviour, under real conditions, using the same type of stone (Porriño granite). Several types of plots are used to monitor the performance of the tool, e.g. graphs of resultant force (generated by the contact between the tool and the stone slab) versus area of cut; and graphs of tool wear (weight loss) versus area of cut. Six discs were studied. The performance of each disc was observed along the cutting operation involving a considerably high area of cut, e.g. 625 linear meters of cut using an average cutting depth of 8 mm (equivalent to 5 square meters of area of cut). Different types of matrices were used for manufacturing new segments for the cutting discs (the diamond content in the segments was kept constant). Matrices containing: Co + bronze (50wt%Co + 50 wt% of a 90Cu-10Sn bronze); Co + bronze + 2.5 wt% graphite; Co + bronze + 5.0 wt% graphite; Co + bronze + 10 wt% WC; and Co + bronze + 20 wt% WC, were produced and their behaviour was compared to that of a standard disc available in the market and commonly used by the stone industry for cutting granite. Interesting alterations in cutting regimes were observed during the long-term tests. Evolution of resultant force and tool wear rate as a function of the area of cut is analysed, revealing that an increase in the resultant force is associated to a decrease in the wear rate of the tool, and vice versa.

Detalhes da publicação

Autores da comunidade :

Versão da publicação

AO - Versão original do autor

Editora

Elsevier

Ligação para a versão da editora

https://www.sciencedirect.com/science/article/pii/S0263436814001097

Título do contentor da publicação

International Journal of Refractory Metals and Hard Materials

Primeira página ou número de artigo

276

Última página

282

Volume

49

Fascículo

1

DOI

10.1016/j.ijrmhm.2014.05.021

WoS (Web of Science)

WOS:000352667100035

Domínio Científico (FOS)

materials-engineering - Engenharia dos Materiais

Palavras-chave

  • Diamond tools
  • Stone machining
  • Tungsten carbide
  • Graphite
  • Tool wear

Idioma da publicação (código ISO)

eng - Inglês

Identificador alternativo (URI)

http://www.scopus.com/inward/record.url?eid=2-s2.0-84933038001&partnerID=MN8TOARS

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