A series of machining experiments of Inconel 718 has been carried out using coated and uncoated carbides. The paper describes the effects of cutting variables (speed, feed and depth of cut) on cutting forces and tool life. Carbide tools in the form of 80° rhomboid shaped inserts without any chip breaker have been used at different cutting conditions. The machining parameters have been optimized by measuring cutting forces. Flank wear was considered as the criterion for tool life. A comparison between the uncoated and coated tools has been made using the Taylor's tool life exponents of speed, feed and depth of cut. The tool life of coated tools was not found to be better than that of the uncoated tools.
NarutakiN.YamaneY.HayashiK.KitagawaT.UeharaK.High-speed machining of Inconel 718 with ceramic tools. Ann. CIRP, 1993, 42(1), 103–106.
6.
BhattacharyyaS. K.PashbyI. R.EzugwuE.KhamsehzadehH.Machining inco 718 and inco 901 superalloys with SiC whisker reinforced Al2O3 composite ceramic tools. In Proceedings of the Sixth International Conference on Production Engineering, 1987, Osaka, Japan, 176–181.
7.
BrandtG.GerendasA.MikusM.Wear mechanics of ceramic cutting tools when machining ferrous and non-ferrous alloys. J. European Ceramic Soc., 1990, 6(5), 273–290.
8.
RichardsN.AspinwallD.Use of ceramic tools for machining nickel based alloys. Int. J. Machine Tools and Mf., 1989, 29(4), 575–588.
9.
FockeA. E.WestermanF. E.ErmiA.YavelakJ.HochM.Failure mechanisms of superhard materials when cutting superalloys. In Proceedings of the Fourth International American Conference on Materials Technology, 1975, Caracus, Venezuela, 488–497.
10.
FockeA. E.WestermanF. E.TentschlerP. E.KemphausJ.ShihW. T.HochM.Grooving on flank of cemented carbide tools when cutting inconel 718. In Fourth North American Metalwork Research Conference, 1976, 464–468.
11.
TanM. T.Groove wear of tools in NC turning of pure nickel. Ann. CIRP, 1986, 35(1), 71–74.
12.
OishiK.OnoT.MiyazawaS.Basic investigation on mechanism of groove wear formation. J. Japan Sci. Precision Engng, 1986, 52(5), 819–825.
13.
IijimaN.TakeyamaH.YamamotoY.Microscopic analysis of metal adhesion on tool surface and prevention of brittle fracture of tool material. J. Japan Sci. Precision Engng, 1986, 52(8), 1335–1341.
14.
MasudaM.ToriiM.NakajimaH.The influence of cutting force on boundary failure of cutting tool. J. Japan Sci. Precision Engng, 1987, 53(10), 1596–1601.
15.
TakeyamaH.IijimaN.Study on machinability characteristics of heat-resistant alloys and adaptability of tool materials. J. Japan Sci. Precision Engng, 1989, 55(8), 1481–1486.
16.
WrightP. K.ChowJ. G.Deformation characteristics of nickel alloys during machining. Trans. ASME, J. Engng Mater. Technol., 1982, 104, 85–93.
17.
Sandvik (Coromant) catalogue. Coromant turning tools 93/94. AB Sandvik, Sweden.
18.
ChoudhuryI. A.El-BaradieM. A.Machinability assessment of nickel based super alloys: Tool life in turning Inconel 718. In Proceedings of the Sixth Cairo University International MDP Conference, 1996, Cairo, Egypt, 233–240.
19.
ISO 3685. Tool Life Testing with Single Point Turning Tools, 1977 (International Standardisation Organisation).
20.
KonigW.FritschR.KammermeierD.New approaches to characterising the performance of coated cutting tools. Ann. CIRP, 1982, 31(1), 49–54.
21.
HanasakiS.FujiwaraJ.TougeM.HasegawaY.Tool wear of coated tools when machining a high nickel alloy. Ann. CIRP, 1990, 39(1), 77–80.
22.
ArmeregoE. J. A.BrownR. H.Machining of Metals, 1967 (Prentice-Hall, Englewood Cliffs, New Jersey).
23.
TakatsuS.Recent developments in hard cutting tool materials. High Temperature Materials and Processes, 1990, 9(2–4), 175–193.
