scholarly journals The influence of the tool base on the formation of stresses in wear-resistant coatings in the cutting process

2018 ◽  
Vol 224 ◽  
pp. 01081
Author(s):  
Aleksey Chikhranov ◽  
Vladimir Tabakov ◽  
Olga Nazarova
Keyword(s):  
Hard Alloy ◽  
High Speed ◽  
High Speed Steel ◽  
Cutting Process ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Compressive Stresses

The results of studies of the influence of the material of the tool base on the formation of stresses in wear-resistant coatings of various compositions are presented. It is shown that the stresses in the coating during the cutting process depend on the properties of the material of the tool base and the composition of the coatings. The stresses change in the coatings during the cutting process is analyzed. It is shown that the use of coatings with high compressive stresses makes it possible to increase the period of resistance of plates made of hard alloy and high-speed steel.

Increase Effectiveness of Shaving by Using Wear-Resistant Coatings and Preliminary Modeling Cutting

2020 ◽  
Vol 299 ◽  
pp. 839-844
Author(s):  
Vitaliy N. Gilman ◽  
Ayrat I. Faskhutdinov ◽  
Igor P. Balabanov
Keyword(s):  
Titanium Nitride ◽  
Tool Life ◽  
High Speed ◽  
High Speed Steel ◽  
Surface Preparation ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Multicomponent Coating

Study of influence the edge and surface preparation and use of various types of coatings on the shaving cutters from the high-speed steel DIN 1.3243 (W6Mo5Cr4V2Co5 - China), with a hardness of 62-64HRc, for processing of the driven gear part, made of steel DIN 1.6523 (20CrNiMoH - China) with a hardness of 156-207 HB is presented. For the analysis, coatings based on titanium nitride (TiN) and a multicomponent coating of titanium and aluminum (AlTiN) were used. The coating on the basis of titanium nitride (TiN) increased the tool life 1.4 times. Multicomponent coating of titanium and aluminum (AlTiN) increased the tool life 1.6 times (AlTiN).

Estimation of the Heat Stability of Hardened Cr-V Cast Irons

2016 ◽  
Vol 870 ◽  
pp. 558-563
Author(s):  
Yu.D. Koryagin ◽  
V.L. Il'ichev
Keyword(s):  
High Speed ◽  
Structural Changes ◽  
High Speed Steel ◽  
Heat Stability ◽  
Maximum Hardness ◽  
Cast Irons ◽  
Wear Resistant ◽  
Secondary Hardness ◽  
Double Tempering ◽  
Structure Properties

The paper describes the structure, properties and heat stability of white cast irons containing 2.5 – 3.0 %C, 14 and 20 %Cr, 3 %V after the secondary hardness treatment (quenching from 1150 °C and double tempering at 560 °C). It is shown that after the secondary hardness treatment M23C6 carbides appear along with the M7C3 phase. Heat stability of the alloys is estimated according to GOST 19265-73 standard. The effect of the temperature and duration of holding at 520–620 °C on structural changes and softening of secondary hardness treated cast irons is considered in comparison with high-speed steel and cast irons of the same composition quenched for the maximum hardness (from 1050 °C). The processes occurring at higher temperatures and long holdings that are responsible for softening of secondary hardness treated cast irons are studied. It is shown that the alloys under consideration after the secondary hardness treatment achieve the hardness of HRC 60 and more, and are able of pertaining it when heated up to 540 °C for 20 hours. This allows using these alloys as wear-resistant materials in the said temperature range.

Residual Stress Analysis in Different Thickness TiN Coatings on High-Speed-Steel Substrates

2011 ◽  
Vol 239-242 ◽  
pp. 2331-2335 ◽  
Author(s):  
Fang Mei ◽  
Guang Zhou Sui ◽  
Man Feng Gong
Keyword(s):  
Residual Stresses ◽  
High Speed ◽  
Thermal Stresses ◽  
High Speed Steel ◽  
X Ray Diffraction ◽  
Tin Coatings ◽  
Compressive Stresses ◽  
M2 High Speed Steel ◽  
Steel Substrates ◽  
Different Thickness

TiN coatings were deposited on AISI M2 high-speed-steel (HSS) substrates by multi-arc ion plating technique. The thickness of substrate was 1.0 mm and five thicknesses of TiN coatings were 3.0, 5.0, 7.0, 9.0 and 11.0 μm, respectively. X-ray diffraction (XRD) has been used for measuring residual stresses. The stresses along five different directions (Ψ=0°, 20.7°, 30°, 37.8° and 45°) have been measured by recording the peak positions of TiN (220) reflection for each 2θ at different tilt angles Ψ. Residual compressive stresses present in the TiN coatings. Furthermore, the results revealed that the value of the residual stresses in TiN coatings was high. While the coatings thickness changed from 3 to 11 μm, the residual stresses varied from -3.22 to -2.04 GPa, the intrinsic stresses -1.32 to -0.14 GPa, the thermal stresses -1.86 to -1.75 GPa. The residual stresses in TiN coatings showed a nonlinear change. When the coatings thickness was about 8 μm, the residual stresses in TiN coatings reached to the maximum value.

INCREASE IN PRODUCTIVITY OF CUTTING TOOLS MADE OF HIGH-SPEED STEEL WITH A WEAR-RESISTANT COATING USING LUBRICANTS

2019 ◽  
Vol 134 ◽  
Author(s):  
Vladimir Vladimirovich Skakun ◽  
◽  
Ruslan Marlenovich Dzhemalyadinov ◽  
Rustem Yunusovich Selyametov ◽  
◽  
...  
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Wear Resistant Coating ◽  
Wear Resistant ◽  
Resistant Coating ◽  
Increase In Productivity

The effect of coatings on the cutting process, friction, forces and predictive cutting models in machining operations

2002 ◽  
Vol 216 (3) ◽  
pp. 347-356 ◽  
Author(s):  
E J A Armarego ◽  
S Verezub ◽  
P Samaranayake
Keyword(s):  
High Speed ◽  
Thrust Force ◽  
Orthogonal Cutting ◽  
High Speed Steel ◽  
Cutting Process ◽  
Force Component ◽  
Friction Forces ◽  
Technological Performance ◽  
The Many ◽  
Machining Operations

The effects of the popular TiN and TiCN coatings on the cutting process, friction and predictive mechanics of cutting models for forces and power in machining operations are investigated. Extensive orthogonal cutting and turning tests on steel work materials have shown that the cutting process and predictive force models are not qualitatively affected by these coatings. Quantitatively, both coatings are equally effective in reducing the friction, forces and power in orthogonal cutting when applied to high-speed steel (HSS) tools and equally ineffective when applied to carbide tools. Both TiN and TiCN coatings applied to HSS tools resulted in modest reductions in the power force component and power of 12–30 per cent ‘on average’ with larger reductions in the thrust force component of about 50 per cent ‘on average’. Considerably more research seems necessary to understand better and to predict quantitatively the effects of the many coating-substrate combinations on the technological performance of machining operations, essential for optimizing the economic performance of these operations.

scholarly journals A novel printable high-speed steel filament: Towards the solution for wear-resistant customized tools by AM alternative

2021 ◽  
Vol 11 ◽  
pp. 1534-1547
Author(s):  
Juan A. Naranjo ◽  
Cristina Berges ◽  
Alberto Gallego ◽  
Gemma Herranz
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Wear Resistant
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