Effect of Heat Treatment on Machining Properties of the AlSi9Cu3(Fe) Alloy

• Autorzy: Wieroński W. , Pezda J. , Ponikwia Ł.

Identyfikatory

DOI

10.1515/afe-2016-0066

• Języki publikacji: EN

Abstrakty

EN

Automation of machining operations, being result of mass volume production of components, imposes more restrictive requirements concerning mechanical properties of starting materials, inclusive of machinability mainly. In stage of preparation of material, the machinability is influenced by such factors as chemical composition, structure, mechanical properties, plastic working and heat treatment, as well as a factors present during machining operations, as machining type, cutting parameters, material and geometry of cutting tools, stiffness of the system: workpiece – machine tool – fixture and cutting tool. In the paper are presented investigations concerning machinability of the EN AC-AlSi9Cu3(Fe) silumin put to refining, modification and heat treatment. As the parameter to describe starting condition of the alloy was used its tensile strength Rm. Measurement of the machining properties of the investigated alloy was performed using a reboring method with measurement of cutting force, cutting torque and cutting power. It has been determined an effect of the starting condition of the alloy on its machining properties in terms of the cutting power, being indication of machinability of the investigated alloy. The best machining properties (minimal cutting power - Pc=48,3W) were obtained for the refined alloy, without heat treatment, for which the tensile strength Rm=250 MPa. The worst machinability (maximal cutting power Pc=89,0W) was obtained for the alloy after refining, solutioning at temperature 510 ^oC for 1,5 hour and aged for 5 hours at temperature 175 ^oC. A further investigations should be connected with selection of optimal parameters of solutioning and ageing treatments, and with their effect on the starting condition of the alloy in terms of improvement of both mechanical properties of the alloy and its machining properties, taking into consideration obtained surface roughness.

Słowa kluczowe

EN

silumin; heat treatment; machinability; refining; mechanical properties; cutting power; aluminum alloys

PL

silumin; obróbka cieplna; obróbka mechaniczna; rafinacja; właściwości mechaniczne; cięcie; stopy aluminium

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 3
• Strony: 137--140
• Opis fizyczny: Bibliogr. 15 poz., il., tab.

Twórcy

autor

Wieroński W.

• University of Bielsko-Biała, Department of Production Engineering, Bielsko-Biała, Poland

autor

Pezda J.

• University of Bielsko-Biała, Department of Production Engineering and Automation, Bielsko-Biała, Poland

autor

Ponikwia Ł.

• University of Bielsko-Biała, Department of Mechanics and Machine Building, Bielsko-Biała, Poland

Bibliografia

• [1] Dobrzański, L.A. (2006). Materials for engineers and materials design. Warsaw: WNT. (in Polish).
• [2] Zolotorevsky, V.S., Belov, N.A. & Glazoff, M.V. (2007). Casting Aluminium Alloys. Oxford: Elsevier.
• [3] Cook, R. (1998). Modification of Aluminium – Silicon Foundry Alloys. London: London & Scandinavian Metallurgical Co Limited.
• [4] Wasilewski, P. (1993). Silumins: modification and its effect on structure and properties. Katowice: PAN (in Polish).
• [5] Dudyk, M. (2007). Forming of technological and mechanical properties of cased aluminium machine parts. Advances in Manufacturing Science and Technology. 31(4), 93-105.
• [6] Jarco, A. & Pezda, J. (2015). Impact of Various Types of Heat Treatment on Mechanical Properties of the EN AC-AlSi6Cu4 Alloy. Archives of Foundry Engineering. 15(2), 35-38.
• [7] Dmochowski, J. (1981). Fundamentals of metal processing. Warsaw: PWN. (in Polish).
• [8] Ponikwia, Ł. (2015). Determination of machining parameters of aluminum alloys basing on measurement of cutting forces. Unpublished master of science dissertation. Bielsko-Biała: University of Bielsko-Biała, Poland. (in Polish).
• [9] Feld, M. (1984). Processing of aluminum alloys. Warsaw: WNT. (in Polish).
• [10] Elizondo, G.H.G., Samuel, E., Samuel, A.M., Mohamed, A.M.A., Samuel, F.H., Alkahtani, S. (2012). Effects of Alloying Elements and Cutting Tool Materials on the Machinability of Al-Si Cast Alloys. Schaumburg: AFS.
• [11] Pezda, J. (2010). Heat treatment of the EN AC-AlSi9Cu3(Fe) alloy. Archives of Foundry Engineering. 10(2), 99-102.
• [12] Pezda, J. (2014). Effect of a selected heat treatment parameters on technological quality of machinery components cast from silumins. Bielsko-Biała: Scientific Publishers ATH. (in Polish).
• [13] Pezda, J. (2008). Effect of modification with strontium on machinability of AK9 silumin. Archives of Foundry Engineering. 8(1), 273-276.
• [14] Zimerman, C., Boppana, S. P. & Kafbi, K. (1989). Machinability test methods. Metals Handbook. 16, 639-647.
• [15] Miernik, M. (2000). Machinability of metals – methods of determination and forecasting. Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej. (in Polish).

Uwagi

PL

Opracowane ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.