Cutting performance, failure mechanisms and tribological properties of GNPs reinforced Al2O3/Ti(C,N) ceramic tool in high speed turning of Inconel 718

2020 ◽  
Vol 46 (11) ◽  
pp. 18859-18867 ◽  
Author(s):  
Enzhao Cui ◽  
Jun Zhao ◽  
Xuchao Wang ◽  
Shiping Song
Keyword(s):  
Tribological Properties ◽  
Inconel 718 ◽  
High Speed ◽  
Failure Mechanisms ◽  
Cutting Performance ◽  
Ceramic Tool ◽  
High Speed Turning

Influence of Coolant Application Direction on the Cutting Performance of Ceramic Tool in High-Speed Air-Jet-Assisted Machining of Inconel 718

2017 ◽  
Vol 749 ◽  
pp. 87-93
Author(s):  
Toshiyuki Obikawa ◽  
Masashi Yamaguchi
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
Cutting Speed ◽  
Cutting Performance ◽  
Necessary Condition ◽  
Nickel Base Superalloy ◽  
Ceramic Tool ◽  
Air Jet ◽  
Nickel Base ◽  
Base Superalloy

This paper describes the high speed air-jet-assisted machining of nickel-base superalloy with a SiC whisker reinforced alumina insert. This machining method showed already good performance in high speed machining of Inconel 718. In this paper, the influence of the application direction of coolant on the tool wear and tool life was investigated for obtaining much better cutting performance of the ceramic tool. The coolant was applied from the side of flank face with three different directions: two oblique directions from the end and side flank faces and the perpendicular direction to the cutting edges. In contrast, the application direction of the air jet was always perpendicular to the cutting edges. The experimental results showed that the best performance in the air-jet-assisted machining was obtained by applying coolant from the side of side flank at a cutting speed of 420 m/min and from the side of end flank at a cutting speed of 780 m/min. The necessary condition found for the best performance was that the size of notch wear was a little larger than that of flank wear.

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.

Study on the machinability characteristics of superalloy Inconel 718 during high speed turning

2009 ◽  
Vol 30 (5) ◽  
pp. 1718-1725 ◽  
Author(s):  
D.G. Thakur ◽  
B. Ramamoorthy ◽  
L. Vijayaraghavan
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
High Speed Turning

Study of surface quality in high speed turning of Inconel 718 with uncoated and coated CBN tools

2011 ◽  
Vol 58 (1-4) ◽  
pp. 141-151 ◽  
Author(s):  
Jinming Zhou ◽  
Volodymyr Bushlya ◽  
Pajazit Avdovic ◽  
Jan Eric Ståhl
Keyword(s):  
Surface Quality ◽  
Inconel 718 ◽  
High Speed ◽  
High Speed Turning

scholarly journals Increased performance in high speed turning of Inconel 718 by laser structuring of PcBN tools

Procedia CIRP ◽  
2018 ◽  
Vol 77 ◽  
pp. 602-605 ◽  
Author(s):  
Berend Denkena ◽  
Thilo Grove ◽  
Alexander Krödel ◽  
Lars Ellersiek
Keyword(s):  
Inconel 718 ◽  
High Speed ◽  
High Speed Turning ◽  
Laser Structuring ◽  
Pcbn Tools

Study on Cutting Performance and Wear Mechanisms of Graded Ceramic Tool

2014 ◽  
Vol 490-491 ◽  
pp. 358-361
Author(s):  
Yan Zheng Li ◽  
Zhong De Shan ◽  
Jun Zhao ◽  
Jing Yun Xiong
Keyword(s):  
Ductile Iron ◽  
Wear Mechanisms ◽  
High Speed ◽  
Nickel Content ◽  
Cutting Speed ◽  
Cutting Performance ◽  
Ceramic Tool ◽  
Dry Cutting ◽  
Short Segment ◽  
Graded Ceramic Tool

In this paper, based on the experiments of high speed dry cutting nickel alloyed ductile iron with different nickel contents by graded ceramic tool, the cutting performance and wear mechanisms of graded ceramic tool were investigated. Results reveal that with the increase of cutting speed and nickel content the wear of graded ceramic tool is increased, wear mechanisms are transformated spalling and cohesive wear from abrasive wear, and chip shapes are turned into long arc segment from short segment.

Cutting performance and wear mechanism of TiB2-B4C ceramic cutting tools in high speed turning of Ti6Al4V alloy

2018 ◽  
Vol 44 (13) ◽  
pp. 15495-15502 ◽  
Author(s):  
Da-Wang Tan ◽  
Wei-Ming Guo ◽  
Hong-Jian Wang ◽  
Hua-Tay Lin ◽  
Cheng-Yong Wang
Keyword(s):  
Wear Mechanism ◽  
High Speed ◽  
Cutting Tools ◽  
Ti6al4v Alloy ◽  
Cutting Performance ◽  
High Speed Turning
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