Impacts of the structure and processing conditions on the voltage arise in machining of gray cast irons

• Autorzy: Yardimeden A. , Inan A. , Aksoy M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Machining is one of the most widely used manufacturing processes. The machining of gray cast iron is important because of wide application of these materials in various industries. The machinability studies have been carried out for these materials and it was reported that the amount of graphite in cast irons was one of the influential factor in tool wear during machining. This study is aimed to provide new approach to examine tool life by considering voltage arise during machining of gray cast irons. Design/methodology/approach: The experimental study carried out to measure voltage values during various machining conditions such as cutting speeds, feed rates and depth of cut. Chemical compositions of the four different gray cast irons were machined and the experimental results were compared to the machining of brass and steel. The selected machining conditions were 0.16, 0.32 and 0.48 mm feed rates, 0.5, 1 and 1.5 mm depths of cut and 125, 250 and 355 rpm spindle speeds, respectively. Findings: It was observed that the voltage difference was detected during the machining of cast iron specimens. This was due to increase of graphite particles within total intersections. This would lead to conclusion that high graphite particles would increase voltage and this would provide information about tool wear. Research limitations/implications: Because of being cheap, the usage of cast iron with lamella graphite particles in specific electric circuits to be used in industrial applications need to be further investigated. Also whether or not the cost iron with lamella graphite particles can be used as voltage storage under intensive stress needs to be investigated. Originality/value: Impacts of the structure and processing conditions on the voltage arise in machining of gray cast irons.

Słowa kluczowe

EN

machining; cast iron; voltage difference

PL

obróbka skrawaniem; żeliwo; różnica napięć

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 25, nr 2
• Strony: 81--84
• Opis fizyczny: Bibliogr. 9 poz., fot., rys., tab.

Twórcy

autor

Yardimeden A.

autor

Inan A.

autor

Aksoy M.

• Department of Mechanical Engineering, Dicle University, 21280 Diyarbakir, Turkey,

Bibliografia

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• [2] F.W. Charles, J.O. Timothy, Iron Castings Handbook, Iron Casting Society Incorporation (1981) 255-257.
• [3] A.R. Ghaderi, M.N. Ahmadabadi, H.M. Ghasemi, Effect of graphite morphologies on the tribological behavior of austempered cast iron, Wear 255 (2003) 410-416.
• [4] K. Edalati, F. Akhlaghi, M.N. Ahmadabadi, Influence of SiC and FeSi addition on the characteristics of gray cast iron melts poured at different temperatures, Journal of Materials Processing Technology 160 (2005) 183-187.
• [5] M. Ramadan, M. Takita, H. Nomura, Effect of semi-solid processing on solidification microstructure and mechanical properties of gray cast iron, Material Science and Engineering A 417 (2006) 166-173.
• [6] W. Wei, J. Tianfu, G. Yuwei, Q. Guiying, Z. Xin, Properties of a gray cast iron with oriented graphite flakes, Journal of Materials Processing Technology 182 (2007) 593-597.
• [7] American Foundry Society web page, http://www.afsinc.org , 2002.
• [8] W. Xu, M. Ferry, Y. Wang, Influence of alloying elements on as-cast microstructure and strength of gray iron, Materials Science and Engineering A 390 (2005) 326-333.
• [9] A. İnan, Investigation of the effects on the tool life of the temperature and voltage at the lathe, Chambers of Mechanical Engineers Science Days, Denizli, 1999, 355-362, (In Turkish).