Machining and Mechanical Characterisation of PM Materials for Valve Seat Inserts

E.S. Jesus Filho; Lucio Salgado; S.L. de Jesus; J.L. Rossi; Marco Antonio Colosio; José Carlos Santos

doi:10.4028/www.scientific.net/MSF.498-499.79

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Machining and Mechanical Characterisation of PM Materials for Valve Seat Inserts
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HomeMaterials Science ForumMaterials Science Forum Vols. 498-499Machining and Mechanical Characterisation of PM...

Machining and Mechanical Characterisation of PM Materials for Valve Seat Inserts

Abstract:

This article shows some fabrication aspects related to the obtention of sintered valve seat insert. This insert was made of a mixture of high-speed steel powders and iron powders plus NbC. This is a new development aiming the substitution of Co alloys currently used for valve seat inserts. The physical properties, mechanical properties and machining behaviour are discussed. The machining characteristics in terms of tool wear, cutting forces and chips morphology of the insert was compared to available commercial insert. The machining results indicate that the material under development has potential for commercial application and shows good machining evidences, in terms of equivalent cutting forces for ceramic tool. In addition, the machining using hard metal tool was susceptible to hardness variation observed for the material under development. Therefore, the machining tests point out the necessity for a microstructure homogenisation of the obtained material.

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Periodical:

Materials Science Forum (Volumes 498-499)

Pages:

79-85

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.498-499.79

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Online since:

November 2005

Authors:

E.S. Jesus Filho, Lucio Salgado, S.L. de Jesus, J.L. Rossi, Marco Antonio Colosio, José Carlos Santos

Keywords:

High Speed-Steel AISI M3/2, Machining, Powder Metallurgy (PM), Valve Seat Insert

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References

[1] K. Myers. Materials World, December (1999) 755-6.

Google Scholar

[2] The PM structural parts industry - past growth and future prospects, Metal Powder Report, December (1999), pp.14-2.

DOI: 10.1016/s0026-0657(00)86723-5

Google Scholar

[3] D. Whittaker. The Intern. J. of Powder Metallurgy, 34 (1998) 53-62.

Google Scholar

[4] L. Salgado, F. Ambrozio Filho, R. M. Leal Neto, J. L. Rossi. SAE Special Publication SP1610 (2001) 33-6.

Google Scholar

[5] M. Sakai. SAE International Paper Series no. 2000-01-0395 (2000).

Google Scholar

[6] F. M. Johnson. Mutation Research, 410 (1988) 123-410.

Google Scholar

[7] L. Salgado, F. Ambrozio Filho, E. G. Araújo, J. Vatavuk, J. L. Rossi, C. R. Herrmann Filho, M. A. Colosio. Máquinas e Metais, 426 (2001) 84-99. (In Portuguese).

Google Scholar

[8] E. R. B. Jesus. M. Sc. Dissertation - IPEN / USP Brazil (1998) 22-36. (In Portuguese).

Google Scholar

[9] ISO/DIS 3685 - Tool-life testing with single point turning tools 2nd Ed. (1993). Time (s) Time (s) Cutting force (arbitrary units) Cutting force (arbitrary units).

Google Scholar