Abstract
Machining of advanced aerospace materials have grown in the recent years although the diffucult-to-machine characteristics of alloys like titanium or nickel-based alloys cause higher cutting forces, rapid tool wear, and more heat generation. Therefore, machining with the use of cooling lubricants is usually carried out. To reduce the production costs and to make the processes environmentally safe, the goal is to move toward dry cutting by eliminating cutting fluids. This objective can be achieved by using coated tool, by increasing cutting speed, and by improving the product performance in term of surface integrity and product quality. The paper addresses the effects of cutting speed and feed on the surface integrity during dry machining of Inconel 718 alloy using coated tools. In particular, the influence of the cutting conditions on surface roughness, affected layer, microhardness, grain size, and microstructural alteration was investigated. Results show that cutting conditions have a significant effect on the parameters related to the surface integrity of the product affecting its overall performance.
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References
Ezugwu EO (2005) Key improvements in the machining of difficult-to-cut aerospace superalloys. Int J Machine Tools & Manuf 45(12–13):1353–1367
Ezugwu EO, Bonney J, Yamane Y (2003) An overview of the machinability of aeroengine alloys. J Mater Proc Technol 134(2):233–253
Pušavec F, Kramar D, Krajnik P, Kopač J (2010) Transition to sustainable production—part II: evaluation of sustainable machining technologies. J Cleaner Prod 18(12):1211–1221
Arunachalam RM, Mannan MA, Spowage AC (2004) Surface integrity when machining age hardened Inconel 718 with coated cutting tools. Int J Machine Tools & Manuf 44(14):1481–1491
Thakur DG, Ramamoorthy B, Vijayaraghavan L (2009) Machinability investigation of Inconel 718 in high-speed turning. Int J Adv Manuf Technol 45:421–429
Itakura K, Kuroda M, Omokawa H, Itani H, Yamamoto K, Ariura Y (1999) Wear mechanism of coated cemented carbide tool in coated tool in cutting of Inconel 718 super-heat resisting alloy. Int Japan Soc Prec Eng 33(4):326–333
Jindal PC, Santhanam AT, Schleinkofer U, Shuster AF (1999) Performance of PVD TiN, TiCN and TiAlN coated cemented carbide tools in turning. Int J Refract Metals Hard Mater 17(1–3):163–170
Prengel HG, Jindal PC, Wendt KH, Santhanam AT, Hedge PL, Penich RM (2001) A new class of high performance PVD coating for carbide cutting tools. Surf Coat Technol 139(1):25–34
Shokrani A, Dhokia V, Newmann ST (2012) Environmentally conscious machining of difficult-to-machine materials with regard to cutting fluids. Int J Machine Tools & Manuf 57:83–101
López de Lacalle LN, Pérez-Bilbatua J, Sánchez JA, Llorente JI, Gutiérrez A, Albóniga J (2000) Using high pressure coolant in the drilling and turning of low machinability alloys. Int J Adv Manuf Technol 16:85–91
Courbon C, Kramar D, Krajnik P, Pušavec F, Rech J, Kopač J (2009) Investigation of machining performance in high-pressure jet assisted turning of Inconel 718: an experimental study. Int J Machine Tools & Manuf 49(11):1114–1125
Nandy AK, Gowrishankar MC, Paul S (2009) Some studies on high-pressure cooling in turning of Ti–6Al–4V. Int J Machine Tools & Manuf 49(2):182–198
Ezugwu EO, Bonney J, Da Silva RB, Çakir O (2007) Surface integrity of finished turned Ti6Al4V alloy with PCD tools using conventional and high pressure coolant supplies. Int J Machine Tools & Manuf 47(6):884–891
Ulutan D, Ozel T (2011) Machining induced surface integrity in titanium and nickel alloys: a review. Int J Machine Tools & Manuf 51(3):250–280
Feyzi T, Safavi MS (2013) Improving machinability of Inconel 718 with a new hybrid machining technique. Int J Adv Manuf Technol 66:1025–1030
Devillez A, Le Coz G, Dominiak S, Dudzinski D (2011) Dry machining of Inconel 718, workpiece surface integrity. J Mater Proc Technol 211:1590–1598
Pawade RS, Joshi SS, Brahmankar PK (2008) Effect of machining parameters and cutting edge geometry on surface of high speed turned Inconel 718. Int J Machine Tools & Manuf 48:15–28
Ezugwu EO, Tang SH (1995) Surface abuse when machining cast iron (G-17) and nickel base superalloy (Inconel 718) with ceramic tools. J Mater Proc Technol 55:63–69
McClung RC (2007) A literature survey on the stability and significance of residual stresses during fatigue. Fatigue Frac Eng Mater & Struct 30:173–205
Wusatowska-Sarnek AM, Dubiel B, Czyrska-Filemonowicz A, Bhowal P, Ben Salah N, Klemberg-Sapieha J (2011) Microstructural characterization of the white etching layer in nickel-based superalloy. Metall Mater Trans A 42:3813–3825
Joint Committee on Powder Diffraction Standards (2010) Powder Diffraction File, Inorganic Phases, sets: 1–60. International Centre for Diffraction Data Inc
Joint Committee on Powder Diffraction Standards (2012) Powder Diffraction File, Hanawalt Search Manual for Experimental Phases, Inorganic Phases: sets 1–62. International Centre for Diffraction Data Inc
Collier JP, How Wong S, Tien JK, Phillips JC (1988) The effect of varying Al, Ti, and Nb content on the phase stability of INCONEL 718. Metall Trans A 19(7):1657–1666
Paulonis DF, Oblak JM, Duvall DS (1969) Precipitation in nickel-base alloy 718. Trans ASM 62:611–622
Kriege OH, Baris JM (1969) The chemical partitioning of elements in gamma prime separated from precipitation-hardened, high-temperature nickel-base alloys. Trans ASM 62:195–200
Oblak JM, Paulonis DF, Duvall DS (1974) Coherency strengthening in Ni base alloys hardened by Do22 gamma double prime precipitates. Metall Trans 5:143–153
Kushan MC, Uzgur SC, Uzunonat Y, Diltemiz F (2012) ALLVAC 718 Plus™ superalloy for aircraft engine applications. In: Agarwal RK (ed) Recent advances in aircraft technology. InTech, Rijeka (Croatia), pp 75–96
Herbert C, Axinte D, Hardy M, Brown PD (2012) Investigation into the characteristics on the white layers produced in a nickel-based superalloy from drilling operations. Mach Sci Technol 16(1):40–52
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Umbrello, D. Investigation of surface integrity in dry machining of Inconel 718. Int J Adv Manuf Technol 69, 2183–2190 (2013). https://doi.org/10.1007/s00170-013-5198-0
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DOI: https://doi.org/10.1007/s00170-013-5198-0