INVESTIGATION OF MAGNESIUM ALLOYS MACHINABILITY

Yıl 2012, Cilt: 2 Sayı: 3, 261 - 268, 01.12.2012

Berat Barıs Buldum Aydın Sık İskender Ozkul

Öz

Magnesium is the lightest structural metal. Magnesium alloys have a hexagonal lattice structure, which affects the fundamental properties of these alloys. Plastic deformation of the hexagonal lattice is more complicated than in cubic latticed metals like aluminum, copper and steel. Magnesium alloy developments have traditionally been driven by industry requirements for lightweight materials to operate under increasingly demanding conditions. Magnesium alloys have always been attractive to designers due to their low density, only two thirds that of aluminium and its alloys [1]. The element and its alloys take a big part of modern industry needs. Especially nowadays magnesium alloys are used in automotive and mechanical (trains and wagons) manufacture, because of its lightness and other features. Magnesium and magnesium alloys are the easiest of all metals to machine, allowing machining operations at extremely high speed. All standard machining operations such as turning, drilling, milling, are commonly performed on magnesium parts

Anahtar Kelimeler

Magnesium alloys, Lightweight metal, Machinability

Kaynakça

• L. Duffy, “Magnesium Alloys”, Magnesium Alloys Magnesium Alloys Materials World, Vol 4. No.3,pp. 127-30, 1996.
• A. Şık, “Sürtünme karıştırma kaynağı ile birleştirilen özelliklerinin incelenmesi”, SAÜFBE, Vol 14., No , 134-140, 2010.
• M. Mabuchi, T. Asahina, H. Iwasaki, and K. Higashi, “Muter. Sd. Technol”, vol. 13, pp. 825-32, M. Mabuchi, M. Nakamura, K. Ameyama, H. Iwasaki, and K. Higashi, “Mater. Sci. Forum”, vols. 306, pp. 67-72, 1999.
• M. Avedesian, H. Baker, “ASM Specialty Handbook- Magnesium and Magnesium Alloys”, ASM International, USA, 3-84, 1999.
• J.R Davis, “Metals Handbook, Desk. Edition, Second Edition”, ASM International, The Materials Information Society, USA, 560- 564, 1998.
• L. Ptáćek, “Magnesium alloys- present state of development and exploitation”, Proceedings of conference METAL 2001, Ostrava - Hradec n. Moravicí, 1-12, 2001.
• K.A. Dahle, Z.C. Lee, M.D. Nave, P.L. Schaffer, D.H. Johnson, “Development of the as-cast microstructure in magnesium-aluminium alloys”, Journal of Light Metals 1 , 61-73, 2001.
• L. Čížek a,, M. Greger , L.A. Dobrzański , I. Juřička , R. Kocich , L. Pawlica , T. Tański, “Mechanical properties of magnesium alloy AZ91 at elevated temperatures”, Journal of Achievements in Materials and Manufacturing Engineering, Volume , Issue 1-2, September–October, 2006.
• H. Mohd Ruzi, M. Norhamidi, S. Abu Bakar, R. J. Khairur, M.N. Nor Hafiez, A. Sufizar, I.I Mohd Halim, Murtadhahadi, “A Review of Workability of Wrought Magnesıum Alloys, Advanced Manufacturing”, Research Group’09 Seminar 3, 2009 .
• H. WESTENGEN, “Magnesium alloys for structural applications; recent advances”, Colloque C7 suppliment au Journal de Physique 111, Volume , 1993.
• D. Eliezer, E. Aghion and F. H. (Sam) Froes, “Advanced Performance Materials,” Magnesium Science, Technology and Applications, Vol. 5, No. , pp. 201-212. 1998. http://en.wikipedia.org/wiki/File:Scientific_artic les_AZ91_AZ31.png 08.03.2012.
• C. Blawert, N. Hort and K.U. Kainer “Automotive Applications of Magnesium And Its Alloys”, Trans. Indian Inst. Met. Vol.57, No. 4, pp. 408, August 2004.
• M. K. Kulekci, “Magnesium and its alloys applications in automotive industry”, Int J Adv Manuf Technol 39:851–865, 2008.
• P. Cavaliere and P. P. De Marco, “Materials Characterization 58”, The Japan Institute of Metals, –232, 2007.
• B. L. Mordike, T. Ebert, “Magnesium – applications – potential”, Journal of Material Science Engineering A 302, pp. 37-45, 2001
• R.W. Cahn, C.X. Shi and J. Ke, “Structure and Properties of Nonferrous Alloys” Beijing, Science Press, Beijing, 1999.
• H. Watanabe, H. Tsutsui*, T. Mukai, K. Ishikawa, Y. Okanda, M. Kohzu, K. Higashi, “Grain Size Control of Commercial Wrought Mg- Al-Zn Alloys Utilizing Dynamic Recrystallization” Materials Transactions, The Japan Institute of Metals Vol.42 No.7 pp.1200-1205, 2001
• C. Suman, “SAE Technical Paper No.910416”,
• Warrendale, PA, Society of Automotive Engineers, E. Horst, L. Mordike, B. Friedrich, “Magnesium technology: metallurgy, design data, applications” Springer Science & Business, 84-86, F. Moll, K.U. Kainer, in: K.U. Kainer (Ed.), “Magnesium Alloys and Technology”, Wiley-VCH, Weinheim, pp. 197–217, 2003.
• M. Paramsothy, Q. B. Nguyen, K. S. Tun, J. Chan, R. Kwok, J. V. M. Kuma, M. Gupta, “The ability of cast composite technology to enhance ductility of wrought magnesium and alloys”,Archive International Journal of Materials Research - Issue /01 A. Martin and J. Llorca, “Mechanical behaviour and failure mechanisms of a binary Mg- %Zn alloy reinforced with SiC particulates,” Mater. Sci. Eng. A, 201, 77-87, 1995.
• W. Westengen, “Magnesium: Alloying, in: K.H.J. Buschow, R.W. Cahn, M.C. Flemings, B. Ilschner, E.J. Kramer, S. Mahajan, P. Veyssiere”, Encyclopedia Technology, Elsevier, pp. 4739–4743, 2008.
• S.F. Hassan, K.F. Ho, M. Gupta, “Increasing elastic modulus, strength and CTE of AZ91 by reinforcing pure magnesium with elemental and copper”, Mater Lett, 58, pp. 2143–2146, 2004
• K. Hirai, H. Somekawa, Y. Takigawa, K. Higashi, “Mater. Sci. Eng. A 403”, 276–280, 2005. http://www.magnesium.com/w3/databank/index php?mgw=153 08.03.2012
• M. Mabuchi, K. Ameyama, H. Iwasaki, and K. Higashi: “Acta Mater”, vol. 47 (7), pp. 2047-57,
• K.Higashi,“Microstructural superplastic composites” Transactions A Volume 32, Number 4, 923-929, Y. N. Wang and J. C. Huang, “Transition of dominant diffusion process during superplastic deformation Metallurgical and Materials Transactions A Volume , Number 2, 555-562, 2007
• H. Watanabe, H. Tsutsui, T. Mukai, K. Ishikawa, Y. Okanda, M. Kohzu, K. Higashi ,“Superplastic Behavior in Commercial Wrought Magnesium Magnesium Alloys 2000, 350-3, 171-176 ,2000
• J.K. Solberg, J. Torklep, O. Bauger, and H. Gjcstland: Mater. Sei. Eng. A, 1991, vol. 134A, pp. 07
• W.F., Smith, “Society of Manufacturing Engineers, forces at the cutting tool, tooling and manufacturing engineers handbook” McGraw-Hill, vol. , machining, pp 1-19, 2004.
• W.F., Smith, “Structure and properties of engineering alloys, second edition”, McGraw-Hill, ISBN 0-70-112829-8, 1993.
• I.J., Polmear, “Light alloys: metallurgy of the light metals”, Third edition, Arnold, London, ISBN 340-63207, 1995. technology”, Dmg, Wiley-Vch, ISBN 3-527-30256- , 2003.
• N. Tomac, K. Tİnnesen, F. O. Rasch, “Safe Machining manufacturing systems and technology: 4. Dec. A. Spicer, J. Kosi, C. Bullups and J. Pajek, “Machining Coolants”, SAE Paper 910415, 1991.
• M. Videm, R.S. Hansen, N. Tomac and K. Tİnnesen, “Metallurgical Considerations for Machining Magnesium Alloys”, SAE Technical Paper 940409, 1994
• Machining Magnesium, Magnesium electron datasheet 254, 2011.