scholarly journals Graph Theory and Matrix Approach for Machinability Enhancement of Cryogenic Treated Cobalt Bonded Tungsten Carbide Inserts

2021 ◽  
Vol 39 (4) ◽  
pp. 1372-1382
Author(s):  
Balamurugan Karnan ◽  
Arunkarthikeyan Kuppusamy
Keyword(s):  
Graph Theory ◽  
Tungsten Carbide ◽  
Surface Finish ◽  
Cryogenic Treatment ◽  
Sustainable Manufacturing ◽  
High Strength ◽  
Matrix Approach ◽  
Validation Experiment ◽  
Aisi4340 Steel ◽  
Carbide Inserts

Cryogenic treatment is a sustainable manufacturing process preferred to improve the properties of the material. In the present study, the effect of cryo treated tungsten carbide cobalt bonded insert (WC-Co) measured in terms of tool life and surface finish on dry turning on high strength AISI4340 steel at different machine parametric conditions. The observations of Untreated (UT) and Deep Cryo Treated (DCT) inserts were compared. Formation and the distribution of eta phase carbides are verified by Scanning Electron Micrograph (SEM). The DCT insert shows a reduction in 27.27% tool wear with an acceptable level of surface finish. Taguchi's coupled Graph Theory and Matrix Approach (TC-GTMA) is used to predict the optimum machining condition and to substantiate the results the validation experiment is conducted and found satisfactory.

Comparative Study to Analyze the Effect of Tempering during Cryogenic Treatment of Tungsten Carbide Tools in Turning

2011 ◽  
Vol 410 ◽  
pp. 267-270 ◽  
Author(s):  
Nirmal S. Kalsi ◽  
Rakesh Sehgal ◽  
Vishal S. Sharma
Keyword(s):  
Tungsten Carbide ◽  
Cutting Tool ◽  
Cryogenic Treatment ◽  
Tool Material ◽  
Variable Number ◽  
Cutting Conditions ◽  
Conventional Heat Treatment ◽  
Improved Performance ◽  
Tungsten Carbide Tool ◽  
Carbide Inserts

Cryogenic treatment of cutting tool material has been reported improving properties of the materials, resulting improved performance. Tungsten carbide is most accepted and widespread cutting tool material in the industry. Cryogenically treatment of tungsten carbide has shown favorable results. However, still much is unknown about the treatment for improvement in properties of the materials, to make the process identical to the existing conventional heat-treatment process in implementation. Importance of tempering during cryogenic treatment has also been reported, however hardly we find any documentation regarding the effect of the number of tempering cycles during cryogenic treatment. This work is based upon to know the effect of the number of tempering cycles during cryogenic treatment of tungsten carbide tool material. Comparison study was done for untreated and cryogenically treated tungsten carbide inserts following variable number of tempering cycles during the treatment, in turning process. The performance was evaluated in terms of tool wear, power consumption and surface roughness achieved. Cryogenically treated inserts have shown favorable results. At low cutting conditions, performance was better and has not got affected by the number of tempering cycles whereas the number of tempering cycles during cryogenic treatment does effects at high cutting conditions, and two or three tempering cycles has shown better results.

Surface Finishes Produced by Tungsten Carbide Taper Pin Reamers

1975 ◽  
Vol 97 (1) ◽  
pp. 21-24
Author(s):  
D. M. Turley
Keyword(s):  
Aluminum Alloy ◽  
Tungsten Carbide ◽  
Surface Finish ◽  
Composite Structure ◽  
High Strength Steel ◽  
Steel Surface ◽  
High Strength ◽  
Cutting Conditions ◽  
Surface Finishes ◽  
Ultra High Strength Steel

The surface finishes produced by taper reaming of holes in a composite structure of aluminum alloy and ultra-high strength steel are examined for both dry and lubricated cutting conditions. In dry reaming cutting occurred under built-up-edge (BUE) conditions whereas when a mineral cutting oil was used no significant BUE was formed. Reaming under the latter conditions resulted in a more undulating steel surface finish but a much smoother surface finish for the aluminum alloy.

Machinability analysis of high strength materials with Cryo-Treated textured tungsten carbide inserts

2019 ◽  
Vol 34 (5) ◽  
pp. 502-510 ◽  
Author(s):  
D. Palanisamy ◽  
K. Balasubramanian ◽  
N. Manikandan ◽  
D. Arulkirubakaran ◽  
R. Ramesh
Keyword(s):  
Tungsten Carbide ◽  
High Strength ◽  
Carbide Inserts ◽  
Machinability Analysis

DELTALLOY 4032

Alloy Digest ◽  
1998 ◽  
Vol 47 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
Coefficient Of Thermal Expansion ◽  
Single Point ◽  
High Strength ◽  
Corrosion And Wear

Abstract Deltalloy 4032 has good machinability and drilling characteristics when using single-point or multispindle screw machines and an excellent surface finish using polycrystalline or carbide tooling. The alloy demonstrates superior wear resistance and may eliminate the need for hard coat anodizing. Deltalloy 4032 is characterized by high strength and a low coefficient of thermal expansion. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion and wear resistance as well as machining and surface treatment. Filing Code: AL-347. Producer or source: ALCOA Wire, Rod & Bar Division.

ALCOA 2024

Alloy Digest ◽  
1998 ◽  
Vol 47 (3) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Surface Finish ◽  
High Strength ◽  
Machined Surface ◽  
2024 Alloy ◽  
Structural Applications ◽  
Strength Material

Abstract Alcoa 2024 alloy has good machinability and machined surface finish capability, and is a high-strength material of adequate workability. It has largely superseded alloy 2017 (see Alloy Digest Al-58, August 1974) for structural applications. The alloy has comparable strength to some mild steels. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as machining and surface treatment. Filing Code: AL-346. Producer or source: ALCOA Wire, Rod & Bar Division.

Dry milling of the ultra-high-strength steel 30CrMnSiNi2A with coated carbide inserts

2013 ◽  
Vol 18 (4) ◽  
pp. 468-473 ◽  
Author(s):  
Qiu-lin Niu ◽  
Da-peng Dong ◽  
Ming Chen ◽  
Yu-sheng Zhang ◽  
Cheng-dong Wang
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Dry Milling ◽  
Ultra High Strength Steel ◽  
Coated Carbide ◽  
Carbide Inserts
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