OPTIMAL MQL AND CUTTING CONDITIONS DETERMINATION FOR DESIRED SURFACE ROUGHNESS IN TURNING OF BRASS USING GENETIC ALGORITHMS

The evolving concept of minimum quantity of lubrication (MQL) in machining is considered as one of the solutions to reduce the amount of lubricant to address the environmental, economical and ecological issues. This paper investigates the influence of cutting speed, feed rate and different amount of MQL on machining performance during turning of brass using K10 cemented carbide tool. The experiments have been planned as per Taguchi's orthogonal array and the second order surface roughness model in terms of machining parameters was developed using response surface methodology (RSM). The parametric analysis has been carried out to analyze the interaction effects of process parameters on surface roughness. The optimization is then carried out with genetic algorithms (GA) using surface roughness model for the selection of optimal MQL and cutting conditions. The GA program gives the minimum values of surface roughness and the corresponding optimal machining parameters.

[1]  Margaret J. Robertson,et al.  Design and Analysis of Experiments , 2006, Handbook of statistics.

[2]  N. R. Dhar,et al.  An experimental investigation on effect of minimum quantity lubrication in machining AISI 1040 steel , 2007 .

[3]  J. Paulo Davim,et al.  Turning of Brasses Using Minimum Quantity of Lubricant (MQL) and Flooded Lubricant Conditions , 2007 .

[4]  Mahmudur Rahman,et al.  EFFECTS OF COOLANT SUPPLY METHODS AND CUTTING CONDITIONS ON TOOL LIFE IN END MILLING TITANIUM ALLOY , 2006 .

[5]  Mariano Marcos,et al.  Dry drilling of alloy Ti–6Al–4V , 2005 .

[6]  Aitzol Lamikiz,et al.  Experimental and numerical investigation of the effect of spray cutting fluids in high speed milling , 2006 .

[7]  T. Leyendecker,et al.  Investigations on hard coated reamers in different lubricant free cutting operations , 1997 .

[8]  T. R. Bement,et al.  Taguchi techniques for quality engineering , 1995 .

[9]  N. R. Dhar,et al.  Effect of minimum quantity lubrication (MQL) on tool wear and surface roughness in turning AISI-4340 steel , 2006 .

[10]  Robert Heinemann,et al.  Effect of MQL on the tool life of small twist drills in deep-hole drilling , 2006 .

[11]  Masumi Saka,et al.  Dry and semi-dry machining using finely crystallized diamond coating cutting tools , 2003 .

[12]  Hossam A. Kishawy,et al.  Effect of coolant strategy on tool performance, chip morphology and surface quality during high-speed machining of A356 aluminum alloy , 2005 .

[13]  Madhan Shridhar Phadke,et al.  Quality Engineering Using Robust Design , 1989 .

[14]  T. Obikawa,et al.  High speed MQL finish-turning of Inconel 718 with different coated tools , 2007 .

[15]  Walter Lindolfo Weingaertner,et al.  Analysis of temperature during drilling of Ti6Al4V with minimal quantity of lubricant , 2006 .

[16]  Eduardo Carlos Bianchi,et al.  Analysis of surface integrity for minimum quantity lubricant—MQL in grinding , 2007 .

[17]  M. Cotterell,et al.  Minimal lubrication machining of aluminium alloys , 2002 .

[18]  P. Sreejith,et al.  Dry machining: Machining of the future , 2000 .

[19]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[20]  P S Sreejith,et al.  Experimental studies on drilling of aluminium (AA1050) under dry, minimum quantity of lubricant, and flood-lubricated conditions , 2006 .

[21]  Anselmo Eduardo Diniz,et al.  Using a minimum quantity of lubricant (MQL) and a diamond coated tool in the drilling of aluminum–silicon alloys , 2002 .

[22]  Anselmo Eduardo Diniz,et al.  Influence of refrigeration/lubrication condition on SAE 52100 hardened steel turning at several cutting speeds , 2003 .

[23]  N. R. Dhar,et al.  The influence of minimum quantity of lubrication (MQL) on cutting temperature, chip and dimensional accuracy in turning AISI-1040 steel , 2006 .

[24]  J. Paulo Davim,et al.  Selection of optimal MQL and cutting conditions for enhancing machinability in turning of brass , 2008 .

[25]  Fumihiro Itoigawa,et al.  Effects and mechanisms in minimal quantity lubrication machining of an aluminum alloy , 2006 .

[26]  Mirko Soković,et al.  Ecological aspects of the cutting fluids and its influence on quantifiable parameters of the cutting processes , 2001 .

[27]  A. Senthil Kumar,et al.  Evaluation of Minimal of Lubricant in End Milling , 2001 .