Effect of compacting pressure on microstructure and mechanical properties of carbide cutting tools

2011 ◽  
Vol 54 (5) ◽  
pp. 585-592 ◽  
Author(s):  
M T Albdiry ◽  
A I Almosawi
Keyword(s):  
Mechanical Properties ◽  
Cutting Tools ◽  
Microstructure And Mechanical Properties ◽  
Compacting Pressure

Evaluation of Mechanical Properties and Microstructure of a High Carbon-Vanadium Tool Steel Produced by Powder Metallurgy

2006 ◽  
Vol 530-531 ◽  
pp. 140-144 ◽  
Author(s):  
E.P. Soares ◽  
Jan Vatavuk ◽  
Renato Panelli ◽  
M.F. Pillis
Keyword(s):  
Mechanical Properties ◽  
Tool Steel ◽  
Hot Isostatic Pressing ◽  
Cutting Tools ◽  
Tool Steels ◽  
High Carbon ◽  
Microstructure And Mechanical Properties ◽  
Great Responsibility ◽  
The Relationship ◽  
Hip Process

Tool steels have important participation in the worldwide market of steels. They are used by metal-mechanical industry as cutting tools, molds, punches, etc. Because the use is of great responsibility, it is important to discuss the relationship between microstructure and mechanical properties. The starting material was powder of a commercial tool steel with the composition (wt%) 2.5%C, 5.25%Cr, 0.9%Si, 9.75%V, 0.5Mn, 1.3%Mo and balance Fe. The samples were obtained by hot isostatic pressing (hip) process, and than were austenitizing at 1120°C and submitted to tempering in the temperature range varying from 430° to 550°C. The aim of this work was to evaluate the correlation between heat treatment, microstructure and mechanical properties. Results of toughness and hardness are presented.

scholarly journals Evolution of the Microstructure and Mechanical Properties of cBN-Based Cutting Tools With Silicides Compounds as Binder Phase

2020 ◽  
Author(s):  
Kateryna Slipchenko ◽  
Denys Stratiichuk ◽  
Nadezhda Belyavina ◽  
Vladimir Turkevich ◽  
Volodymyr Bushlya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cubic Boron Nitride ◽  
Cutting Tools ◽  
Binder Phase ◽  
Temperature Oxidation ◽  
Transitional Metals ◽  
Microstructure And Mechanical Properties ◽  
High Pressure High Temperature ◽  
Steel Aisi ◽  
The Relationship

Silicide based compounds are widely used for coatings due to their high melting temperature, oxidation resistance and moderate density. Employment of binders based on silicides of transitional metals can provide cBN-based cutting tools with higher chemical stability and better performance. The relationship between phase composition, microstructure and mechanical properties of novel polycrystalline cubic boron nitride (PcBN) materials were investigated. Three series of PcBN samples were made by high pressure high temperature (HPHT) sintering. Silicides of chromium – CrSi2, vanadium – VSi2 and molybdenum MoSi2 were used as a binder phase in each case, while aluminum was introduced to the mixture as an oxygen getter. During HPHT sintering at temperatures above 1850 ∘C the formation of borides of binder phase were observed in cases with VSi2 and MoSi2. For system with CrSi2 binder, temperature of boride formation was found to be lower – 1600 ∘C. Materials with MoSi2 binder phase demonstrated the highest level of microhardness. Performance of materials were investigated in conditions of machining of stainless steel AISI 316L and Inconel 718.

scholarly journals Microstructure and mechanical properties of multilayer TiB2/C and co-sputtered TiB2-C coatings for cutting tools

Vacuum ◽  
1999 ◽  
Vol 53 (1-2) ◽  
pp. 113-116 ◽  
Author(s):  
M.A. Baker ◽  
R. Gilmore ◽  
C. Lenardi ◽  
P.N. Gibson ◽  
W. Gissler
Keyword(s):  
Mechanical Properties ◽  
Cutting Tools ◽  
Microstructure And Mechanical Properties ◽  
Coatings For Cutting Tools

Effect of Compaction Load and Heat Treatment in Manufacturing of HSS Cutting Inserts under Nitrogen-Based Atmosphere

2013 ◽  
Vol 686 ◽  
pp. 313-319
Author(s):  
R.J. Talib ◽  
Ahmad Aswad Mahaidin ◽  
Samsiah Abdul Manaf ◽  
Mohamed Fadzil Fazira ◽  
Mohd Asri Selamat
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Speed ◽  
Cutting Tools ◽  
Sintered Sample ◽  
Tempering Temperature ◽  
Temperature Range ◽  
Cutting Inserts ◽  
Manufacturing Parameters ◽  
Compacting Pressure

High speed steels (HSS) is used in manufacturing of cutting tools and wear components because of its superior mechanical properties and wear resistance. In this study, the optimization manufacturing parameters such as compacting pressure and heat treatment temperatures will be studied. The powder of HSS and iron phosphorous were dryly mixed for 30 minutes. The mixed powders were compacted at the pressure in the range of 300- 632 MPa, sintered in the temperature range of 1100 - 1225 °C, annealed in the temperature range of 1100 - 1175 °C and tempered in the temperature range of 500 - 600 °C. The mechanical properties of the samples are analyzed using Vicker’s microhardness tester, universal tensile machine and the microstructures of the sintered sample were observed using field emission scanning electron microscope. Test results revealed that the optimum manufacturing parameters are as follows; (i) compacting pressure of 632 MPa, (ii) sintering temperature of 1200°C, (iii) annealing temperature of 1175 °C, (iv) tempering temperature of 500 °C.

Microstructure and mechanical properties of cBN-WC-Co composites used for cutting tools

2014 ◽  
Vol 76 (9-12) ◽  
pp. 2043-2049 ◽  
Author(s):  
Cong Mao ◽  
Yinghui Ren ◽  
Hangyu Gan ◽  
Mingjun Zhang ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cutting Tools ◽  
Microstructure And Mechanical Properties

STRUCTURE AND PROPERTIES OF MULTI COMPONENT (Ti-Zr-Cr-Nb)N COATINGS OBTAINED BY VACUUM-ARC DEPOSITION

Tribologia ◽  
2016 ◽  
Vol 270 (6) ◽  
pp. 205-218
Author(s):  
Didar K. YESKERMESSOV ◽  
Sergey V. PLOTNIKOV ◽  
Nazgul K. YERDYBAEVA
Keyword(s):  
Mechanical Properties ◽  
Protective Coatings ◽  
Cutting Tools ◽  
Experimental Studies ◽  
Scratch Test ◽  
Vacuum Arc ◽  
Properties Of Coatings ◽  
Microstructure And Mechanical Properties ◽  
Vacuum Arc Deposition ◽  
Arc Deposition

Investigated multicomponent coating nitride (Ti-Zr-Cr-Nb)N in this study were obtained using a well-developed technique of vacuum-arc deposition. Theoretical and experimental studies show that the chemical composition, microstructure, and mechanical properties of coatings are based closely on deposition parameters (the working gas pressure and bias potential on the substrate). The microstructure and mechanical properties (Ti-Zr-Cr-Nb)N coatings were investigated using a scanning electron microscope (SEM) equipped with energy dispersive microanalysis prefix and X-ray diffraction (XRD). Phase analysis of nitride coatings (Zr-Ti-Cr-Nb)N indicates a TiN phase, NbTiN2, ZrTiNb, ZrNb, TiCr and α-Ti. The coatings thickness reached 6.8 μm and their maximum of hardness was H = 43,7GPa. Tribological (test “ball-on-disc”) and mechanical (scratch test) properties of multi-coating were studied. The experimental results obtained by studying multicomponent coatings (Ti-Zr-Cr-Nb)N are promising and can be used as protective coatings for cutting tools and structural materials.

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