Tribological Performance of MoS2-Filled Microtextured Cutting Tools During Dry Sliding Test

2017 ◽  
Vol 140 (2) ◽  
Author(s):  
Kishor Kumar Gajrani ◽  
Mamilla Ravi Sankar ◽  
Uday Shanker Dixit
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Sliding Contact ◽  
Interface Temperature ◽  
Dry Sliding ◽  
Cutting Fluids ◽  
Area Density ◽  
Feed Force ◽  
Sliding Test

Strict environmental laws enforced on manufacturing industries resulted in the development of alternative techniques to reduce or eliminate the use of lubricants during sliding contact as well as machining. Tribology plays a very important role for tool life in machining. To improve the life of cutting tool, cutting fluids are used. However, cutting fluids only penetrate into the region of sliding contact. In this study, the effect of surface texturing on plasma nitrided high-speed steel (HSS) pins during dry sliding test is investigated for understanding the performance of textured HSS tools in machining. Microtextures were fabricated using Vickers hardness tester on the surface of HSS pins. Tribological tests of molybdenum disulphide (MoS2) filled as well as unfilled microtextured HSS with area density of textures varying from 2% to 14% were performed with the aid of pin-on-disk tribometer against an abrasive sheet. Friction and wear performance were assessed in terms of the pin surface temperature, coefficient of friction (COF), wear, weight loss of the pin and wear rate. Worn-out test surfaces were observed under scanning electron microscope to understand the wear mechanism. The best results were obtained with MoS2-filled microtextures having 10% texture area density. Tool–chip interface temperature, cutting force, feed force, and centerline average (CLA) surface roughness were also assessed during machining test with 10% area density of textured cutting tools.

UNS T11310

Alloy Digest ◽  
1988 ◽  
Vol 37 (5) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Steel Mills

Abstract UNS No. T11310 is the high vanadium type of molybdenum high-speed steel. It is a deep-hardening steel and offers high cutting ability and excellent finishing properties. It is a general-purpose steel for cutting tools and is used in such applications as taps, lathe tools and reamers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and machining. Filing Code: TS-490. Producer or source: Tool steel mills.

ELECTRITE COBALT

Alloy Digest ◽  
1960 ◽  
Vol 9 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
Heavy Duty ◽  
Steel Company

Abstract ELECTRITE COBALT is a 5% cobalt type high-speed steel recommended for heavy duty cutting tools. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-89. Producer or source: Latrobe Steel Company.

GUTERL M-2

Alloy Digest ◽  
1981 ◽  
Vol 30 (9) ◽  
Keyword(s):  
Physical Properties ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Good Resistance ◽  
Special Steel ◽  
Steel Corporation ◽  
Circular Saws

Abstract GUTERL M-2 is a molybdenum-tungsten type of high-speed steel with fairly good resistance to decarburization. It is a general-purpose high-speed steel and it provides excellent resistance to abrasion and shock. It is used widely for cutting tools. Among its many applications are hack saws, circular saws, lathe tools, gear cutters, planer tools and wood knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-387. Producer or source: Guterl Special Steel Corporation.

VASCO 8-N-2

Alloy Digest ◽  
1979 ◽  
Vol 28 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose

Abstract VASCO 8-N-2 is a molybdenum high-speed steel containing a low percentage of tungsten. It can be used successfully for a variety of cutting tools; in fact, it is a general-purpose high-speed steel. Its composition represents the first molybdenum high-speed steel to be manufactured and find practical use in the field of cutting tools. Its many uses include drills, milling cutters, lathe tools, blanking dies and special shear blades. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-351. Producer or source: Teledyne Vasco.

STORA ASP 60

Alloy Digest ◽  
1978 ◽  
Vol 27 (12) ◽  
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
Machine Material ◽  
High Hardenability ◽  
Metallurgy Steel ◽  
Special Steels ◽  
Cutting Speeds ◽  
Hot Hardness

Abstract STORA ASP 60 is a molybdenum-tungsten high-speed steel with high percentages of carbon, cobalt and vanadium. It is a powder metallurgy steel, has high hardenability and can be hardened by cooling in air or oil from the austenitizing temperature. It has an excellent combination of wear resistance, toughness, hot hardness and resistance to tempering. It is recommended for cutting tools for hard-to-machine material and high cutting speeds. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-342. Producer or source: Stora Kopparberg, Special Steels Division.

STORA ASP 30

Alloy Digest ◽  
1978 ◽  
Vol 27 (9) ◽  
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Cobalt Content ◽  
Heat Treating ◽  
Machine Material ◽  
High Hardenability ◽  
Special Steels ◽  
Cutting Speeds ◽  
Hot Hardness

Abstract STORA ASP 30 is a high hardenability tungsten-molybdenum alloyed high-speed steel with high cobalt content. It is recommended for cutting tools for hard-to-machine material and high cutting speeds. It has excellent wear resistance, toughness, hot hardness and resistance to tempering. The excellent size stability and good grindability of ASP 30 make it very suitable for tools with a complicated shape. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-338. Producer or source: Stora Kopparberg, Special Steels Division.

Characteristic properties of AlTiN and TiN coated HSS materials

2015 ◽  
Vol 67 (2) ◽  
pp. 172-180 ◽  
Author(s):  
Mumin Sahin ◽  
Cenk Misirli ◽  
Dervis Özkan
Keyword(s):  
Surface Roughness ◽  
Tensile Strength ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Wear Properties ◽  
Content Type ◽  
X Ray ◽  
Number Of Cycles ◽  
Future Work

Purpose – The purpose of this paper is to examine mechanical and metallurgical properties of AlTiN- and TiN-coates high-speed steel (HSS) materials in detail. Design/methodology/approach – In this study, HSS steel parts have been processed through machining and have been coated with AlTiN and TiN on physical vapour deposition workbench at approximately 6,500°C for 4 hours. Tensile strength, fatigue strength, hardness tests for AlTiN- and TiN-coated HSS samples have been performed; moreover, energy dispersive X-ray spectroscopy and X-ray diffraction analysis and microstructure analysis have been made by scanning electron microscopy. The obtained results have been compared with uncoated HSS components. Findings – It was found that tensile strength of TiAlN- and TiN-coated HSS parts is higher than that of uncoated HSS parts. Highest tensile strength has been obtained from TiN-coated HSS parts. Number of cycles for failure of TiAlN- and TiN-coated HSS parts is higher than that for HSS parts. Particularly TiN-coated HSS parts have the most valuable fatigue results. However, surface roughness of fatigue samples may cause notch effect. For this reason, surface roughness of coated HSS parts is compared with that of uncoated ones. While the average surface roughness (Ra) of the uncoated samples was in the range of 0.40 μm, that of the AlTiN- and TiN-coated samples was in the range of 0.60 and 0.80 μm, respectively. Research limitations/implications – It would be interesting to search different coatings for cutting tools. It could be the good idea for future work to concentrate on wear properties of tool materials. Practical implications – The detailed mechanical and metallurgical results can be used to assess the AlTiN and TiN coating applications in HSS materials. Originality/value – This paper provides information on mechanical and metallurgical behaviour of AlTiN- and TiN-coated HSS materials and offers practical help for researchers and scientists working in the coating area.

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