Temperature and wear of cutting tools in high-speed machining of Inconel 718 and Ti6Al6V2Sn

Kitagawa, Takeaki; Kubo, Akihiko; Maekawa, Katsuhiro

doi:10.1016/s0043-1648(96)07255-9

Cited by 472 publications

(208 citation statements)

References 14 publications

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“…Morse potential between the tip and the substrate is adopted according to Refs. [16,17], but with only repulsive interaction considered [7]. The Morse potential is written as:…”

Section: Methodsmentioning

confidence: 99%

Ploughing friction and nanohardness dependent on the tip tilt in nano-scratch test for single crystal gold

刘小明

et al. 2015

Computational Materials Science

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a b s t r a c tDifferent from macro-scale scratch, in nano-scale scratch test, the scratching tip is easily tilted, which may display a considerable change of the friction behavior. The ploughing friction and nanohardness dependent on the tip tilt in nano-scratch test for single crystal gold is studied in this paper by using molecular dynamics simulations. The results show that tilting forward (backward) to the scratch direction has a larger effect on the friction coefficient than the case of tilting laterally to the scratch direction. Scratch hardness is also sensitive to the tip tilting forward (backward), while it is insensitive to the tip tilting laterally. Moreover, the local plastic behaviors near tip (pile-up, plastic area, and dislocation evolution) are also dependent on the tip tilt, which may be a major contribution to the mechanism of the nano-scale wear.

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“…Morse potential between the tip and the substrate is adopted according to Refs. [16,17], but with only repulsive interaction considered [7]. The Morse potential is written as:…”

Section: Methodsmentioning

confidence: 99%

Ploughing friction and nanohardness dependent on the tip tilt in nano-scratch test for single crystal gold

刘小明

et al. 2015

Computational Materials Science

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“…Kitagawa et al [12] has concluded that cutting temperature and tool wear in the high-speed machining of aerospace materials, such as Inconel 718 and Ti-6Al-4V-2Sn alloys, have been examined by means of cutting experiments and numerical analysis. They investigated that TiC-added alumina tool is better over silicon nitride within a speed range from 250 to 500 m/min, where the tool temperature reaches around 1200 °C.…”

Section: High Speed Machiningmentioning

confidence: 99%

A Comprehensive Review on Machining of Ti6al4v

2017

IJAERD

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“…The properties that make Inconel 718 an important engineering material are responsible for its poor machinability (Tebassi et al, 2016a;Tebassi et al, 2017;Sharman et al, 2006). These properties are commonly the strength maintained during machining, the highly abrasive carbide particles contained in the microstructure and the poor thermal conductivity (Sharman et al, 2001;Li et al, 2002), which leads to elevate the cutting temperature up to 1200 °C at the rake face (Kitagawa et al, 1997). Consequently, the requirements for any cutting tool material used for machining these alloys should include: good wear resistance, high hot hardness, high strength and toughness, good thermal shock properties and adequate chemical stability at high temperature (Ezugwu et al, 1999); such as ceramic tools recommended for machining of these alloys compared with coated carbide at high cutting speed (Darwish, 2000;Nalbant et al, 2007;Gatto & Iuliano, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…This large wear at high cutting speed is caused by diffusion between Si in the insert and Inconel 718 (El-Wardany et al, 1996). In addition, tool wear can also be caused by an abrasive rather than by a thermally process, by considering its poor thermal conductivity, which leads to elevate the temperature at the rake face (Kitagawa et al, 1997).The minimum flank wear was observed when using the SNGN tools at low cutting speeds or the RNGN tools at high cutting speeds (Altin et al, 2007). In addition, cutting forces and different types of tool wear were reduced by increasing the feed rate when turning of Inconel 718 with ceramic tool (El-Wardany et al, 1996), this parameter is considered as the most relevant cutting parameter affecting ceramic tool stresses (Kose et al, 2008;Nalbant et al, 2007;Ezugwu & Tang, 1995;Gatto & Iuliano, 1997;Altin et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Quality-productivity decision making when turning of Inconel 718 aerospace alloy: A response surface methodology approach

Tebassi¹,

Yallese²,

Belhadi³

et al. 2017

10.5267/j.ijiec

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Inconel 718 is among difficult to machine materials because of its abrasiveness and high strength even at high temperature. This alloy is mainly used in aircraft and aerospace industries. Therefore, it is very important to reveal and evaluate cutting tools behavior during machining of this kind of alloy. The experimental study presented in this research work has been carried out in order to elucidate surface roughness and productivity mathematical models during turning of Inconel 718 superalloy (35 HRC) with SiC Whisker ceramic tool at various cutting parameters (depth of cut, feed rate, cutting speed and radius nose). A small central composite design (SCCD) including 16 basics runs replicated three times (48 runs), was adopted and graphically evaluated using Fraction of design space (FDS) graph, completed by a statistical analysis of variance (ANOVA). Mathematical models for surface roughness and productivity were developed and normality was improved using the Box-Cox transformation. Results show that surface roughness criterion Ra was mainly influenced by cutting speed, radius nose and feed rate, and that the depth of cut had major effect on productivity. Finally, ranges of optimized cutting conditions were proposed for serial industrial production. Industrial benefit was illustrated in terms of high surface quality accompanied with high productivity. Indeed, results show that the use of optimal cutting condition had an industrial benefit to 46.9 % as an improvement in surface quality Ra and 160.54 % in productivity MRR.

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Temperature and wear of cutting tools in high-speed machining of Inconel 718 and Ti6Al6V2Sn

Cited by 472 publications

References 14 publications

Ploughing friction and nanohardness dependent on the tip tilt in nano-scratch test for single crystal gold

Ploughing friction and nanohardness dependent on the tip tilt in nano-scratch test for single crystal gold

A Comprehensive Review on Machining of Ti6al4v

Quality-productivity decision making when turning of Inconel 718 aerospace alloy: A response surface methodology approach

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