High speed cutting of Inconel 718 with coated carbide and ceramic inserts

2002 ◽  
Vol 129 (1-3) ◽  
pp. 127-130 ◽  
Author(s):  
L Li ◽  
N He ◽  
M Wang ◽  
Z.G Wang
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
High Speed Cutting ◽  
Coated Carbide

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.

Oxidation Behavior and Cutting Performance between Ti0.75-Al0.25-N and Ti0.69-Al0.23-Si0.08-N Coated Tool through Measurement of Cutting Temperature

2008 ◽  
Vol 569 ◽  
pp. 141-144
Author(s):  
Suk Hoon Shin ◽  
Chul Kim ◽  
Dong Gyu Ahn ◽  
Kwang Ho Kim ◽  
Myung Chang Kang
Keyword(s):  
Oxidation Resistance ◽  
High Speed ◽  
Oxidation Behavior ◽  
Cutting Temperature ◽  
Cutting Condition ◽  
High Speed Cutting ◽  
Aisi D2 ◽  
End Mills ◽  
Cold Worked ◽  
Coated Carbide

Ti-Al-Si-N and Ti-Al-N coatings were deposited on WC-Co substrates by a DC magnetron sputtering method. The oxidation behavior of two kinds of Ti0.75Al0.25N and Ti0.69Al0.23Si0.08N coatings were comparatively investigated by XRD patterns and GDOES depth profiles. Si addition of 8 at.% into Ti-Al-N film modified its microstructure to a fine composite comprising, Ti-Al-N crystallites and amorphous Si3N4, and to a smoother surface morphology. While the solid solution Ti0.75Al0.25N film had superior oxidation resistance up to around 700°C, the composite Ti-Al-Si-N film showed further enhanced oxidation resistance. Both Al2O3 and SiO2 layers played roles as a barrier against oxygen diffusion for the quaternary Ti-Al-Si-N film, whereas only the Al2O3 oxide layer formed at surface did a role for the Ti-Al-N film. The cutting performances of two coated carbide ball-end mills were evaluated by cutting of AISI D2 cold-worked die steel (60 HRC) under high-speed cutting condition. The tool wear and cutting temperature are discussed along with coating characteristics.

Influence of gas blow on high-speed cutting of Inconel 718 by ceramic end mill

2018 ◽  
Vol 2018.12 (0) ◽  
pp. C15
Author(s):  
Yoshiyuki Matsui ◽  
Katsuhiko Sakai ◽  
Hiroo Shizuka ◽  
Masayuki Okada ◽  
Syusuke Suzuki ◽  
...  
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
End Mill ◽  
High Speed Cutting

Tool Wear of PVD Coated Carbide Tool when Finish Turning Inconel 718 under High Speed Machining

2010 ◽  
Vol 129-131 ◽  
pp. 1004-1008 ◽  
Author(s):  
M.Z.A. Yazid ◽  
C.H. Che Hassan ◽  
A.G. Jaharah ◽  
A.I. Gusri ◽  
M.S. Ahmad Yasir
Keyword(s):  
Tool Wear ◽  
Inconel 718 ◽  
High Speed ◽  
Cutting Speed ◽  
Nose Radius ◽  
Machining Processes ◽  
Finish Turning ◽  
Diffusion Wear ◽  
Flank Face ◽  
Coated Carbide

This paper reports the results of an experimental works, where Inconel 718, a highly corrosive resistant, nickel-based super alloy, was finish-turning under high speed conditions. The machining processes were carried out at three different cutting conditions (DRY, MQL 50 ml/h and MQL 100 ml/h), three levels of cutting speed (Vc=90, 120 and 150 m/min), two levels of feed rate (f=0.10 and 0.15 mm/rev) and two levels of cutting depth (d=0.30 and 0.50 mm). The tool wear and flank wear progression were monitored, measured and recorded progressively at various time intervals. The experiments indicated that MQL condition performs better than dry condition in term of tool life. Most of the tool failures during machining were due to gradual failure where abrasive and notching wear on the flank face was the dominant followed by, fracture on the flank edge and nose radius. Tool failure due to crater wear was not significant. Wear mechanism such as abrasive and adhesion were observed on the flank face and diffusion wear was observed on the rake face.

Self-Sharpening Failure Characteristic of a Si3N4 Ceramic Tool in High Speed Cutting of Inconel 718

2016 ◽  
Vol 693 ◽  
pp. 1135-1142 ◽  
Author(s):  
Guang Ming Zheng ◽  
Jun Zhao ◽  
Xiang Cheng ◽  
Min Wang
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
Adhesive Wear ◽  
Failure Mechanisms ◽  
Cutting Edge ◽  
Ceramic Tool ◽  
Tool Failure ◽  
High Speed Cutting ◽  
Failure Characteristic ◽  
Failure Evolution

A Si3N4 ceramic tool material with high mechanical properties was fabricated by hot-pressing sintering process. The high speed machining of Inconel 718 tests were carried out with round ceramic inserts. The failure surface and microstructure were analyzed by scanning electron microscopy (SEM) to reveal the ceramic tool failure mechanisms. The results showed that the main failure mechanisms of the Si3N4 ceramic tool were flaking, micro-chipping, abrasive wear and adhesive wear in the turning process. On the other hand, chipping, flaking and adhesive wear were the main failure reasons in the milling process. Meanwhile, some small flaking along the cutting edge and step-shaped flaking on the rake face closed to the cutting edge were found on the failure surfaces, which was a typical self-sharpening failure characteristic of the ceramic tool in the high-speed cutting process. This tool failure evolution characteristic of the ceramic tool can be attributed to its higher flexural strength and fracture toughness, which was beneficial to improve the tool life and was constrained by cutting conditions.

scholarly journals High Speed Cutting of Super Heat Resisting Alloy Inconel 718. On the Finish Cutting with High Pressurized Cutting Fluid.

2000 ◽  
Vol 66 (10) ◽  
pp. 1611-1615 ◽  
Author(s):  
Katsutoshi ITAKURA ◽  
Motofumi KURODA ◽  
Yoshihiro DOI ◽  
Hidehiko TSUKAMOTO ◽  
Yasutsune ARIURA
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
Cutting Fluid ◽  
High Speed Cutting ◽  
Finish Cutting

Thermal influence of cutting tool coatings

2004 ◽  
Vol 120 ◽  
pp. 743-750
Author(s):  
J. Rech ◽  
J. L. Battaglia ◽  
A. Moisan
Keyword(s):  
Heat Transfer ◽  
High Speed ◽  
Cutting Tool ◽  
Thermal Barrier ◽  
High Speed Cutting ◽  
Simple Geometry ◽  
Tool Coatings ◽  
Discontinuous Cutting ◽  
Thermal Influence ◽  
Coated Carbide

The paper deals with the qualification of the thermal behaviour of the system “work material – coated carbide cutting tool – chip”, with the purpose of reaching a better understanding of the heat flow entering into the tool substrate during a turning operation. Heat transfer in deposit-substrate system was analysed by basing on a simple geometry example. A model of heat transfer in the cutting tool has been proposed. Results show that coating’s thermal barrier role does not exist in continuous cutting operations, but that it is significant in discontinuous cutting operations especially with high speed cutting conditions.

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