Precision Electrodischarge Machining (EDM) of Aluminum Matrix Composites

• Autorzy: Perończyk J. , Biało D.
• Konferencja: International Conference on Modelling in Mechatronics (9 ; 02-04.09.2004 ; Kazimierz Dolny, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper contains description of composites with Al-20Si-3Cu-1Mg matrix and particle reinforcing phase Al₂O₃ of 2.5-10% volume fraction. During EDM, holes of 0.5 mm diameter were drilled in plates cut from composite bars. Average drilling speed V_d, accuracy of the holes drilling and surface roughness R_a were determined. It was found, that the energy of a single discharge is the basic parameter influencing the EDM process. The higher the energy of a single discharge, the higher the productivity and the higher the surface roughness of the holes. The effect of material and volume fraction of the reinforcing phase in composite on the drilling speed was also noted. When the volume fraction of this phase increases, the drilling speed is reduced.

Słowa kluczowe

EN

EDM drilling; metal matrix composites; surface roughness

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2004
• Tom: Vol. 28, No. 4
• Strony: 83--88
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Perończyk J.

• Institute of Mechanical Technology. Warsaw University of Technology

autor

Biało D.

• Institute of Precision and Biomedical Engineering. Warsaw University of Technology

Bibliografia

• Biało, D., 2002, Wear of aluminium matrix composites manufactured from powders. WUT Sci. Publ., Mechanics, 192, Warsaw (in Polish).
• Cronjaeger, L., Meisler, D., 1992, Machining of Fibre and Particle Reinforced Aluminium, Annals of the CJRP, 41, 63-66.
• Masaki T., Kawaka K., Sato., Mizutani T., Yonemoti K., Shibuyo A., Mazuzawa T., 1989, Micro Electro-Disarge Machining. Proc. of IX Int. Symp. for Electro-Machining (ISEM-9), Nagoya, 26-30.
• Mazuzawa, T., Kuo, C. L., Fujino, M., 1991, A Combined Electrical Machining Process for Micronozlle Fabrication, Annals of the CJRP, 43/1, 189-192.
• Monaghan, J., 1998, Factors Affecting the Machinability of Al/SiC Metal-Matrix Composites, Key Engineering Materials, 138-140, 545-574.
• Oczoś, K.E., 1997, Holes machining - advances in electrodischarge drilling, Mechanics, 7, 325-333 (in Polish).