Abstract
This paper describes hard machining which offers many potential benefits over traditional manufacturing techniques. In this work, investigations were carried out on end milling of hardened tool steel DIEVAR (hardness 50 HRC), a newly developed tool steel material used by tool- and die-making industries. The objective of the present investigation was to study the performance characteristics of machining parameters such as cutting speed, feed, depth of cut and width of cut with due consideration to multiple responses, i.e. volume of material removed, tool wear, tool life and surface finish. Performance evaluation of physical vapour deposition-coated carbide inserts, ball end mill cutter and polycrystalline cubic boron nitride inserts (PCBN) was done for rough and finish machining on the basis of flank wear, tool life, volume of material removed, surface roughness and chip formation. It has been observed from investigations that chipping, diffusion and adhesion were active tool wear mechanisms and saw-toothed chips were formed whilst machining DIEVAR hard steel. PCBN inserts give an excellent performance in terms of tool life and surface finish in comparison with carbide-coated inserts. End milling technique using PCBN inserts could be a viable alternative to grinding in comparison to ball end mill cutter in terms of surface finish and tool life.
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References
Koshy P, Dewes RC, Aspinwall DK (2002) High speed end milling of hardened tool steel ( 58 HRC). J Mater Process Technol 127:266–273
King RI (ed) (1985) Handbook of high speed machining technology. Chapman & Hall, London
Dewas RC, Aspinwall DK (1997) A review of ultra high speed milling of hardened steels. J Mater Process Technol 69:1–17
Dutta AK, Chattopadhyaya AB, Ray KK (2006) Progressive flank wear and machining performance of silver toughened alumina cutting tool inserts. Wear 261:885–895
Urbanski JP, Kosy P, Dewas RC, Aspinwall DK (2000) High speed machining of moulds and dies for net shape manufacture. Mater Des 21:395–402
Arsecularatne JA, Zhang LC, Montross C, Mathew P (2006) On machining of hardened AISI D2 steel with PCBN tools. J Mater Process Technol 171:244–252
Senthil Kumar A, Raja Durai A, Sornakumar T (2006) The effect of tool wear on tool life of alumina-based ceramic cutting tools while machining hardened martensitic ceramic cutting tools while machining hardened martensitic stainless steel. J Mater Process Technol 173:151–156
Attanasio A, Gelfi M, Giardini C, Remino C (2006) Minimum quantity lubrication in turning: effect on tool wear. Wear 260:333–338
Camuscu N, Aslan E (2005) A comparative study on cutting tool performance in end milling of AISI D3 tool steel. J Mater Process Technol 170:121–126
Choudhury IA, See NL, Zukhairi M (2005) Machining with chamfered tools. J Mater Process Technol 170:115–120
Su YL, Liu TH, Su CT, Yao SH, Kao WH, Cheng KW (2006) Wear of CrC-coated carbide tools in dry machining. J Mater Process Technol 171:108–117
El-Wardany TI, Kishawy HA, Elbestawi MA (2000) Surface integrity of die materials in high speed machining, part 1: micro graphical analysis. Trans ASME J Manuf Sci Eng 122:620–631
El-Wardany TI, Kishawy HA, Elbestawi MA (2000) Surface integrity of die materials in high speed machining, part 2: micro hardness variations and residual stresses. Trans ASME J Manuf Sci Eng 122:632–641
Özel T (2003) Modelling of hard part machining: effect of insert edge preparation in CBN cutting tools. J Mater Process Technol 141:284–293
Kato H, Shintani K, Sumiya H (2002) Cutting performance of a binder less sintered cubic boron nitride tool in the high speed milling of grey cast iron. J Mater Process Technol 127:217–221
ISO 8688-2(1989) Tool life testing in milling, part 1 and part 2; end milling
Astakhov VP (2004) The assessment of cutting tool wear. Int J Mach Tool Manuf 44:637–647
Zorev NN (1966) Metal cutting mechanics (M.C. Shaw, Trans.). Pergamon, Oxford
Makarow AD (1976) Optimization of cutting processes. Mashinostroenie, Moscow (in Russian)
Astakhov VP (1998) Metal cutting mechanics. CRC, Boca Raton
Komarovsky AA, Astakhov VP (2002) Physics of strength and fracture control: fundamentals of the adaptation of engineering materials and structures. CRC, Boca Raton
Oxley PLB (1989) The mechanics of machining: an analytical approach to assessing machinability. Horwood, Chichester
Shaw MC (2003) The size effect in metal cutting. Sadhana-Academy Proc Eng Sci 28:875–896
Eu-Gene Ng, Aspinwall DK (2002) The effect of workpiece hardness and cutting speed on the machinability of AISI H13 hot work die steel when using PCBN tooling. Trans ASME J Manuf Sci Eng 124:588–594
Trent EM, Wright PK (2000) Metal cutting. Butterworth-Heinemann, Boston
Kishawy HA, Elbestawi MA (1997) Effects of process parameters on chip formation when machining hardened steel. Proceedings of the International Mechanical Engineering Congress and Exposition, vol 6–2, Dallas, Texas ASME-MED, pp 13–20
Kishawy HA, Elbestawi MA (1998) Effects of edge preparation and cutting speed on surface integrity of die materials in hard machining. Proc Int Mech Eng Congr Exp MED 8:269–276
Oishi K (1995) Built up edge elimination in mirror cutting of hardened steel. Trans ASME J Eng Ind 117(1):62–66
Nelson S, Schueller JK, Tlusty J (1998) Tool wear in milling hardened die steel. Trans ASME J Manuf Sci Eng 120:669–673
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Gopalsamy, B.M., Mondal, B., Ghosh, S. et al. Experimental investigations while hard machining of DIEVAR tool steel (50 HRC). Int J Adv Manuf Technol 51, 853–869 (2010). https://doi.org/10.1007/s00170-010-2688-1
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DOI: https://doi.org/10.1007/s00170-010-2688-1