Preparation of MoS2/Zr Coated High Speed Steel Tool and its Cutting Performance

2009 ◽  
Vol 69-70 ◽  
pp. 153-157
Author(s):  
J.L. Zhao ◽  
Jian Xin Deng ◽  
Pei Yan
Keyword(s):  
High Speed ◽  
Composite Coatings ◽  
Cutting Temperature ◽  
High Speed Steel ◽  
Cutting Performance ◽  
Dry Machining ◽  
Substrate Adhesion ◽  
Coated Tools ◽  
M2 High Speed Steel ◽  
Surface Morphologies

MoS2/Zr composite coatings were deposited onto M2 high speed steel tools by medium-frequency magnetron sputtered coupled with multi-arc ion plated techniques. The thickness, micro-hardness and coating-substrate adhesion strength of the coatings were studied. Surface morphologies of the as-deposited coatings as well as wear surface features after dry machining tests were investigated. The experimental results indicated that deposition of PVD MoS2/Zr composite coatings onto M2 HSS tools shows higher hardness compared to the pure MoS2 coatings, and exhibits significant enhancement in cutting performance. The wear mechanism of the MoS2/Zr coated tools is mainly delamination of the coating owing to the elevated cutting temperature and friction force.

scholarly journals Cutting Performance Evaluation of the Coated Tools in High-Speed Milling of AISI 4340 Steel

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3266 ◽  
Author(s):  
Yuan Li ◽  
Guangming Zheng ◽  
Xiang Cheng ◽  
Xianhai Yang ◽  
Rufeng Xu ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Cutting Performance ◽  
High Speed Milling ◽  
Coated Tools ◽  
Coated Tool ◽  
Aisi 4340

The cutting performance of cutting tools in high-speed machining (HSM) is an important factor restricting the machined surface integrity of the workpiece. The HSM of AISI 4340 is carried out by using coated tools with TiN/TiCN/TiAlN multi-coating, TiAlN + TiN coating, TiCN + NbC coating, and AlTiN coating, respectively. The cutting performance evaluation of the coated tools is revealed by the chip morphology, cutting force, cutting temperature, and tool wear. The results show that the serration and shear slip of the chips become more clear with the cutting speed. The lower cutting force and cutting temperature are achieved by the TiN/TiCN/TiAlN multi-coated tool. The flank wear was the dominant wear form in the milling process of AISI 4340. The dominant wear mechanisms of the coated tools include the crater wear, coating chipping, adhesion, abrasion, and diffusion. In general, a TiN/TiCN/TiAlN multi-coated tool is the most suitable tool for high-speed milling of AISI 4340, due to the lower cutting force, the lower cutting temperature, and the high resistance of the element diffusion.

Research on Cutting Performance of Graphite-Like Carbon Coated Tools in Dry Drilling of Ferrous Metal

2010 ◽  
Vol 455 ◽  
pp. 467-471
Author(s):  
Ji Ming Xiao ◽  
Yan Li ◽  
L.J. Bai ◽  
Qi Long Yuan ◽  
Jian Ming Zheng
Keyword(s):  
High Speed ◽  
Ferrous Metal ◽  
High Speed Steel ◽  
High Hardness ◽  
Cutting Performance ◽  
Low Friction ◽  
Dry Cutting ◽  
Coated Tools ◽  
Carbon Coated ◽  
Twist Drills

The graphite-like carbon (GLC) coating was deposited onto high-speed steel (HSS) twist drills by magnetron sputter ion plating technique. The drilling tests were performed on the ferrous metal under dry cutting conditions. By the analysis and comparison of the flank wear and the drilling forces on drills, the cutting performance of GLC coated HSS tools was researched. The results show that GLC coating with high hardness and low friction coefficient, due to its good adhesion and match with HSS substrate, can significantly improve the cutting performance of HSS twist drills, prolong the tool life, decrease the drilling forces in drilling the ferrous metal. And its cutting performance is better than the hard coated drills in the lower speed, but its thermal stability is inferior to the hard coated drills in the higher speed.

Cutting Characteristics of CFRP Materials with End Milling

2009 ◽  
Vol 407-408 ◽  
pp. 710-713 ◽  
Author(s):  
Takashi Inoue ◽  
Masahiro Hagino ◽  
Masao Matsui ◽  
Li Wei Gu
Keyword(s):  
Carbon Fibers ◽  
High Speed ◽  
End Milling ◽  
Cutting Temperature ◽  
High Speed Steel ◽  
Polycrystalline Diamond ◽  
Face Milling ◽  
End Mill ◽  
Coated Tools ◽  
Reinforced Plastic

This paper presents the results of groove and end face milling of CFRP materials by high speed steel end mill tools and polycrystalline diamond (PCD) and TiAlN-coated tungsten carbide end mill tools. The experimental results of end-face milling show carbon fibers on the surface of all the tools used in this experiment. However, the carbon fibers do not occur in groove milling when using PCD coated tools. In addition, the distribution of the carbon fibers of CFRP composites changed with the cutting temperature and cutting force. The overall result shows PCD-coated tools have longer tool life compared to high speed steel and TiAlN-coated end mill tools in processing carbon reinforced plastic composites.

LATROBE M2 EUR

Alloy Digest ◽  
2010 ◽  
Vol 59 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Physical Properties ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Steel Company ◽  
M2 High Speed Steel ◽  
Specialty Steel

Abstract M2 EUR is the European version of the general purpose ASTM M2 high speed steel. This datasheet provides information on composition, physical properties, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-691. Producer or source: Latrobe Specialty Steel Company.

Metallographic analysis of M2 high speed steel granules

2019 ◽  
pp. 78-85
Author(s):  
L. E. Afanasieva
Keyword(s):  
Solid Solution ◽  
Cellular Structure ◽  
High Speed ◽  
Solution Structure ◽  
Supersaturated Solid Solution ◽  
High Speed Steel ◽  
Metallographic Analysis ◽  
M2 High Speed Steel ◽  
Melt Composition

The article is devoted to the metallographic analysis of the M2 high-speed steel granules. The study is based on the investigation of the microstructure of the M2 high-speed steel granules obtained by melt atomization. It is demonstrated that granules of similar size can harden both by chemically separating and chemically non-separating mechanism. These last ones have supersaturated solid solution structure of the liquid melt composition, a dispersed dendritic-cellular structure and an increased microhardness HV = 10267±201 MPa.

Wear resistance and cutting performance of high-speed steel ball nose end mills related to the initial state of tool surface

Wear ◽  
2021 ◽  
Vol 472-473 ◽  
pp. 203711
Author(s):  
A.S. Chaus ◽  
M.V. Sitkevich ◽  
P. Pokorný ◽  
M. Sahul ◽  
M. Haršáni ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Speed ◽  
High Speed Steel ◽  
Steel Ball ◽  
Cutting Performance ◽  
Initial State ◽  
Tool Surface ◽  
End Mills

scholarly journals Selective Laser Melting of Crack-Free High Density M2 High Speed Steel Parts by Baseplate Preheating

2014 ◽  
Vol 136 (6) ◽  
Author(s):  
Karolien Kempen ◽  
Bey Vrancken ◽  
Sam Buls ◽  
Lore Thijs ◽  
Jan Van Humbeeck ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Selective Laser Melting ◽  
High Speed ◽  
Crack Formation ◽  
High Speed Steel ◽  
Thermal Gradients ◽  
Laser Melting ◽  
Mechanical And Physical Properties ◽  
The World ◽  
M2 High Speed Steel

Cracks and delamination, resulting from residual stresses, are a barrier in the world of additive manufacturing and selective laser melting (SLM) that prohibits the use of many metals in this field. By preheating the baseplate, thermal gradients are lowered and stresses can be reduced. In this work, some initial tests were performed with M2 high speed steel (HSS). The influence of preheating on density and mechanical and physical properties is investigated. The paper shows many promising results for the production of SLM parts in materials that are very sensitive to crack formation and delamination. When using a preheating of 200 °C, crack-free M2 HSS parts were produced with a relative density of 99.8%.

Effect of Methane Flow Rate on the Microstructural and Mechanical Properties of Silicon Carbide Thin Films Deposited by Reactive DC Magnetron Sputtering

2010 ◽  
Vol 66 ◽  
pp. 35-40 ◽  
Author(s):  
Erdem Baskurt ◽  
Tolga Tavşanoğlu ◽  
Yücel Onüralp
Keyword(s):  
Magnetron Sputtering ◽  
High Speed ◽  
Profile Analysis ◽  
High Speed Steel ◽  
X Ray Diffraction ◽  
Dc Magnetron Sputtering ◽  
Cross Sectional ◽  
Methane Flow Rate ◽  
Surface Morphologies ◽  
Sic Films

SiC films were deposited by reactive DC magnetron sputtering of high purity (99.999%) Si target. 3 types of substrates, AISI M2 grade high speed steel, glass and Si (100) wafer were used in each deposition. The effect of different CH4 flow rates on the microstructural properties and surface morphologies were characterized by cross-sectional FE-SEM (Field-Emission Scanning Electron Microscope) observations. SIMS (Secondary Ion Mass Spectrometer) depth profile analysis showed that the elemental film composition was constant over the whole film depth. XRD (X-Ray Diffraction) results indicated that films were amorphous. Nanomechanical properties of SiC films were also investigated.

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