State of Art on Development of Diamond Reinforced Tungsten Carbide based Cutting Tool by Powder Metallurgy Routes

The application of Ni-based powder metallurgy superalloys materials was limited for its' difficult-to-machine, such as excessive tool wear, frequent tool change, short tool life, low productivity, and large amount of power consumption etc. So the studying of Ni-based powder metallurgy superalloys drilling process becomes extremely important. This paper mainly introduces the research status of drilling of Ni-based powder metallurgy superalloys materials and through synthesize considering cutting force and cost effective, we determined the optimal of cutting tool materials is carbide YG8 twist drill. The optimal parameters of drilling of Ni-based powder metallurgy superalloys: cutting speed of 15m/min, feed per tooth of 0.02mm/r. When the superalloys material is machined by standard twist drill, it is always appearing the failure modes of drilling.

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Machinability of C45 steel with deep cryogenic treated tungsten carbide cutting tool inserts

International Journal of Refractory Metals and Hard Materials ◽

10.1016/j.ijrmhm.2008.04.007 ◽

2009 ◽

Vol 27 (1) ◽

pp. 181-185 ◽

Cited By ~ 98

Author(s):

T.V. SreeramaReddy ◽

T. Sornakumar ◽

M. VenkataramaReddy ◽

R. Venkatram

Keyword(s):

Tungsten Carbide ◽

Cutting Tool ◽

Carbide Cutting Tool

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Performance evaluation of a tungsten carbide–based self-lubricant cutting tool

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1177/0954405416681822 ◽

2016 ◽

Vol 232 (10) ◽

pp. 1825-1836 ◽

Cited By ~ 4

Author(s):

Ayyankalai Muthuraja ◽

Selvaraj Senthilvelan

Keyword(s):

Tungsten Carbide ◽

Cutting Force ◽

Tool Life ◽

Solid Lubricant ◽

Cutting Tool ◽

Flank Wear ◽

Cutting Tools ◽

Chip Morphology ◽

Machined Surface ◽

Flank Surface

Tungsten carbide cutting tools with and without solid lubricant (WC-10Co-5CaF2 and WC-10Co) were developed in-house via powder metallurgy. The developed cutting tools and a commercial WC-10Co cutting tool were used to machine cylindrical AISI 1020 steel material under dry conditions. The cutting force and average cutting tool temperature were continuously measured. The cutting tool flank surface and chip morphology after specific tool life (5 min of cutting) were examined to understand tool wear. The flank wear of the considered cutting tools was also measured to quantify the cutting tool life. The surface roughness of the workpiece was measured to determine the machining quality. The developed cutting tool with solid lubricant (WC-10Co-5CaF2) generated 20%–40% less cutting force compared to that of the developed cutting tool without solid lubricant (WC-10Co). In addition, the finish of the workpiece surface improved by 16%–20% when it was machined by the solid lubricant cutting tool. The cutting tool with solid lubricant (WC-10Co-5CaF2) exhibited a 15%–18% reduction in flank wear. Curlier and smaller saw tooth chips were generated from the WC-10Co-5CaF2 cutting tool, confirming that less heat was generated during the cutting process, and the finish of the machined surface was also improved.

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Machinability Investigation in High Speed Turning of Powder Metallurgy Nickel-Based Superalloy with Sialon Ceramic Inserts

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.139-141.805 ◽

2010 ◽

Vol 139-141 ◽

pp. 805-808 ◽

Cited By ~ 1

Author(s):

Yang Qiao ◽

Xing Ai ◽

Zhan Qiang Liu ◽

Jun Zhao

Keyword(s):

Powder Metallurgy ◽

Thermal Shock ◽

High Speed ◽

Cutting Tool ◽

Cutting Temperature ◽

Cutting Speed ◽

Depth Of Cut ◽

High Temperature Strength ◽

Sialon Ceramic ◽

Nickel Based Superalloy

An experimental investigation was carried out to understand the behavior of a powder metallurgy nickel-based superalloy when machined with sialon ceramic insert tools. Turning experiments were carried out at different cutting speeds and feed rates while depth of cut was kept constant. Cutting tool performance was evaluated with respect to temperature and cutting forces generated during turning, and tool wear. The sialon ceramic cutting tool showed high performance when increasing cutting speed, the machining experiments showed that sialon ceramic tools performed better at cutting speed up to 80 m/min. Abrasion and adhesion was the dominant wear mechanisms. Chipping on the tool rake and flank faces, as well as catastrophic failure under thermal shock and mechanical loading, was also observed in experiments. As cutting temperature was very high when turning powder metallurgy nickel-based superalloy, good high-temperature strength and thermal shock resistance were indispensable to the cutting tools for machinging this kind of material.

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