Identification of friction and heat partition model at the tool-chip-workpiece interfaces in dry cutting of an inconel 718 alloy with cbn and coated carbide tools

2014 ◽  
Vol 38 (1) ◽  
Author(s):  
F. Zemzemi ◽  
J. Rech ◽  
W. Ben Salem ◽  
A. Dogui ◽  
Ph. Kapsa
Keyword(s):  
Inconel 718 ◽  
Dry Cutting ◽  
Partition Model ◽  
Inconel 718 Alloy ◽  
Heat Partition ◽  
Coated Carbide ◽  
Coated Carbide Tools

Identification of a Friction Model at the Tool-Chip-Workpiece Interface in Dry Machining of a AISI 1045 Steel With a TiN Coated Carbide Tool

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
Hamdi Ben Abdelali ◽  
Cedric Courbon ◽  
Joël Rech ◽  
Wacef Ben Salem ◽  
Abdelwaheb Dogui ◽  
...  
Keyword(s):  
Friction Model ◽  
Carbide Tool ◽  
Dry Machining ◽  
Sliding Velocity ◽  
Partition Model ◽  
Heat Partition ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel ◽  
Coated Carbide

The characterization of frictional phenomena at the tool-chip-workpiece interface in metal cutting remains a challenge. This paper aims at identifying a friction model and a heat partition model at this interface during the dry cutting of an AISI1045 steel with TiN coated carbide tools. A new tribometer, based on a modified pin-on-ring system, has been used in order to reach relevant values of pressures, temperatures, and sliding velocities. Additionally a 3D Arbitrary Lagrangian Eulerian model (A.L.E.) numerical model simulating the frictional test has been developed in order to extract local parameters around the spherical pin, such as average contact pressure, average local sliding velocity, and average contact temperature, from experimental macroscopic measurements. A large range of sliding velocities [0.083–5 m/s] has been investigated. It has been shown that friction coefficient and heat partition coefficient are mainly dependant on local sliding velocity at the interface. Three friction regimes have been identified. These experimental and numerical results provide a better understanding of the tribological phenomena along the tool-chip-workpiece interfaces in dry machining of an AISI 1045 steel with a TiN coated carbide tool. Finally a new friction model and heat partition model has been developed for implementation in a numerical cutting model.

A Study of Cutting Forces in High-Speed Dry Milling of Inconel 718

2012 ◽  
Vol 500 ◽  
pp. 105-110 ◽  
Author(s):  
Huai Zhong Li ◽  
Jun Wang
Keyword(s):  
Cutting Forces ◽  
Inconel 718 ◽  
High Speed ◽  
Cutting Speed ◽  
High Yield ◽  
Dry Milling ◽  
Machining Processes ◽  
Dry Cutting ◽  
High Tendency ◽  
Coated Carbide

nconel 718 is one of the most commercially important superalloys but with very poor machinability. It has a very high yield stress and a high tendency to adhesion and work-hardening. A recent trend of improving the machining processes of difficult-to-cut materials is to move towards dry cutting operations. This paper presents an experimental study of the cutting forces in high speed dry milling of Inconel 718 using a milling cutter with coated carbide inserts. It is found that the peak cutting forces increase with an increase in chip load in a nonlinear way, but cutting speed does not show a significant influence on the cutting force for the range of cutting speeds tested in this study.

scholarly journals Performance of PVD-Coated Carbide Tools When Turning Inconel 718 in Dry Machining

2011 ◽  
Vol 3 ◽  
pp. 790975 ◽  
Author(s):  
Gusri Akhyar Ibrahim ◽  
Che Hassan Che Haron ◽  
Jaharah Abdul Ghani ◽  
Ahmad Yasir Moh. Said ◽  
Moh. Zaid Abu Yazid
Keyword(s):  
Inconel 718 ◽  
Dry Machining ◽  
Coated Carbide ◽  
Coated Carbide Tools
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