Sinker electrical-discharge machining of aluminium matrix composites

• Autorzy: Cichosz P. , Karolczak P.
• Języki publikacji: EN

Abstrakty

EN

Principal features of aluminium matrix composites are put forward. Emphasis is put on temperatures of melting and coefficients of heat conduction of matrix and reinforcement. The paper presents results of electrical discharge machining of aluminium matrix composites with particular attention given to thickness of the defected layer after machining. Influence of various machining parameters on the behaviour of saffil fibres and matrix material in the affected zone is presented. Scanning micrographs and roughness measurements are used to analyse surface finish following machining. The influence of used current parameters on the quality of surface layer after electrical discharge machining is discussed. The results for composite materials are compared with those for aluminum alloys.

Słowa kluczowe

EN

aluminium matrix composites; machining; spark erosion

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2008
• Tom: Vol. 26, No. 3
• Strony: 548--554
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Cichosz P.

autor

Karolczak P.

• Institute of Production Engineering and Automatization, Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland,

Bibliografia

• [1] SOBCZAK J., WOJCIECHOWSKI S., , Kompozyty (Composites), 2 (2002), 25 (in Polish).
• [2] NAPLOCHA K., Optimization of process variables in manufacturing the AK9 type materials reinforced with Al2O3 fibres, Institute of Production Engineering and Automation, Wrocław University of Technology, Doctor Thesis, Wrocław 1999 (in Polish).
• [3] JANKOWIAK M., KAWALEC M., KRÓL G., Machining ability of cutting edges in turning Al2O3-particle reinforced Al alloys, ZN Politechniki Rzeszowskiej, Mechanika 44, 1995, 133 (in Polish).
• [4] CRONJAGER L., MEISTER D., Machinability of fibre and particle-reinforced aluminium, Annals of CIRP, 41 (1992), 63.
• [5] TETI R., Machining of composite materials, Annals of CIRP, 51 (2002), 611.
• [6] PEROŃCZYK J., BIAŁO D., Kompozyty (Composites) 1 (2001), 211 (in Polish).
• [7] PEROŃCZYK J., BIAŁO D., Kompozyty (Composites) 3(2003), 366 (in Polish).
• [8] TRZASKA M., PEROŃCZYK J., BIAŁO D., Kompozyty (Composites) 5 (2005), 51 (in Polish).
• [9] WANG CH., YAN B., J. Mat. Proc. Techn., 12 (2000), 90.