Manufacture of nanocrystalline metals by machining processes

• Autorzy: Jackson M. J. , Robinson G. M. , Whitfield M. D.
• Konferencja: 12th International Scientific Conference CAM3S'2006, 27-30th November 2006, Gliwice-Zakopane
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper shows how extremely high-speed micromachining can be used as a method for manufacturing nanocrystalline feedstock from machining chips. The feedstock can be used in processes such as cold spraying that improve the surface characteristics of engineering components. Design/methodology/approach: The design and methodology relies on the construction and the correct operation of a micromachining operation that produces functional feedstock material that is produced from machining chips at spindle speeds in excess of half-a-million revolutions per minute. The approach provides an economical way of producing metal nanocrystals. Findings: The findings of the research show that intense plastic shearing of metals produces nanosized crystals in the range 30 nm to 150 nm. The crystals produced can be used to create superior funtional coatings on engineering components. Research limitations/implications: The research conducted implies that a cost effective and environmentallybenign process can produce metal nanocrystals. The limitations of the research are currently restricted to cold spraying of funtional surfaces. Practical implications: The practical implications of the research show that high-speed micromachining can be used as a method of producing nanocrystalline feedstock that can be used in a variety of secondary manufacturing processes in addition to cold spraying. Originality/value: The paper demonstrates the originality of using well-established machining processes for producing nanocrystalline metals. The paper describes how machining at extremely high speeds can be achieved to produce material that can be used to strengthen and harden engineering components.

Słowa kluczowe

EN

machining; nanocrystalline metals; cold spraying

PL

obróbka skrawaniem; metale nanokrystaliczne; natryskiwanie na zimno

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 20, nr 1-2
• Strony: 27--30
• Opis fizyczny: Bibliogr. 15 poz., fot., rys.

Twórcy

autor

Jackson M. J.

autor

Robinson G. M.

autor

Whitfield M. D.

• Birck Nanotechnology Centre, College of Technology, Purdue University, West Lafayette, Indiana, USA,

Bibliografia

• [1] F.Gartner, et al., Thermal Spray Conference Proceedings 2003, Vol. 1, 1-8.
• [2] T. Schmidt, et al., Thermal Spray Conference Proceedings 2003, Vol. 1,9-18.
• [3] R.C. Dykhuizen, R.A Neiser, Thermal Spray Conference Proceedings 2003, Vol. 1, 19-26.
• [4] A.N. Papyrin, Thermal Spray Conference Proceedings 2003, Vol. 1, 27-36.
• [5] J. Vlcek, et al., Thermal Spray Conference Proceedings 2003, Vol. 1,37-44.
• [6] D. Zhang, et al., Thermal Spray Conference Proceedings 2003, Vol. 1,45-52.
• [7] T. Van Steenkiste, J.R Smith, Thermal Spray Conference Proceedings 2003, Vol. 1, 53-61.
• [8] C.J. Li, et al., Thermal Spray Conference Proceedings 2003, Vol. 1, 91-96.
• [9] W. Kroemmer, et al., Thermal Spray Conference Proceedings 2003, Vol. 1, 97-102.P. Meyer, W. Rusch, Thermal Spray Conference Proceedings 2003, Vol. 1, 123-128.
• [10] L.A. Dobrzanski, K. Golombek, J. Mikula, D. Pakula, Cutting ability improvement of coated tool materials, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 41-44.
• [11] L.A. Dobrzanski, A. Sliwa, W. Kwasny, W. Sitek, The computer simulation of Ti + TiC coatings obtained in the PVD process, Journal of Achievements in Materials and Manufacturing Engineering 17 (2006) 241-244.
• [12] L.A. Dobrzanski, K. Golombek, Structure and properties of cutting tools made from cemented carbides and cermets with TiN+mono, gradient or multi (TiAlSi)N+TiN nanocrystalline coatings, Journal of Materials Processing Technology 164-165 (2005) 805-815.
• [13] L.A. Dobrzanski, K. Golombek, E. Hajduczek, Structure of the nanocrystalline coatings obtained on the CAE process on the sintered tool materials, Journal of Materials Processing Technology 175 (2006) 157-162.
• [14] L.A. Dobrzanski, D. Pakula, A. Kriz, M. Sokovic, J. Kopac, Tribological properties of the PVD and CVD coatings deposited onto the nitride tool ceramics, Journal of Materials Processing Technology 175 (2006) 179-185.