The aim of this paper is the machinability analysis, in different drilling conditions, of sintered metals filled with a machinability enhancer. The cutting parameters involved in the study are: rotating velocity, feedrate and coating of the tool. To reduce the number of experimental tests required, a 2k–1 fractional design of experiment with three two level factors and two replications for each run was employed. The experimental design was repeated for three sintered metals with different hardnesses or densities. The obtained results show new insight into the machining mechanism of sintered material and into the influence of the cutting parameters on the machining forces.
CaustonR. J.: Adv. Powder Metall Part. Mater., 1995, 2, 149–170.
2.
BlaisC.: Met. Powder Rep., 2002, 57, (7-8), 85.
3.
GagneM. L. and DanaherJ. A.: Met. Powder Rep., 1999, 54, (2), 37.
4.
BeissP. and KutschU.: Met. Powder Rep., 1997, 52, (2), 34.
5.
BergS.: Met. Powder Rep., 1998, 53, (6), 39.
6.
Robert-PerronE., BlaisC., PelletierS. and ThomasY.: Mater. Set Eng. A, 2007, A458, (1-2), 195–201.
7.
SanderowH. L., SpirkoJ. R. and CorrenteR.: Int. J. Metall., 1998, 34, 37–46.
8.
WuS. M.: in ‘Handbook of high-speed machining technology’, (ed. I R.I.); 1985, New York, Chapman and Hall.
9.
AndersenP. J. and HirschhornJ. S.: Proc. Int. Symp. on ‘Influence of metallurgy on machinability of steel’, Tokyo, Japan, September 1977, ASM.
10.
MazilluD. and TirpeG.: in Proc. Int. Conf. on ‘Powder metallurgy’; 1996, Cluj-Napoca, U.T. Press.
11.
MazilluD., TirpeG. and DobreD.: Proc. Conf. MATEHN ‘98; 1998, Cluj-Napoca, U.T. Press.
12.
AmbsH. D.: ‘Machinability studies on sintered stainless steel source: advances in powder metallurgy’, Vol. 3, ‘Parts production technologies’, 89-100; 1991, Cleveland, OH, SCM Metal Products Inc.
13.
GalloA., Bocchioni, De Fiore, Dionoro and S. Gallo: Proc. 2nd Int. Conf. AITEM, Padova, Italy, September 1995, Associazione Italiana di Tecnologia Meccanica.
14.
MontgomeryD. C.: ‘Introduction to statistical quality control’; 1997, New York, John Wiley & Son.
