Influence of the heat treatment on the microstructure and machinability of AISI H13 hot work tool steel

Demir, Halil; Gündüz, Süleyman; Erden, Mehmet Akif

doi:10.1007/s00170-017-1426-3

Cited by 34 publications

(23 citation statements)

References 15 publications

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“…The Ra values generally decrease with increasing Vc (m/ min). This situation in many studies has been associated with the decrease in the tendency of built-up edge (BUE) formation [13][14][15][16][17]. The surface roughness is approximately 30% decrease with increasing cutting speed from 90 to 120 mm/rev while 37% decrease by feed rate from 120 to 150 mm/rev in turning tests using as-received inserts.…”

Section: Evaluation Of Experimental Resultsmentioning

confidence: 99%

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Akgün

Demir

2021

SN Appl. Sci.

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This work focuses on developing the mathematical model of surface roughness (Ra) in the turning of Inconel 625 superalloy with cryogenically treated tungsten carbide inserts. The influence of cryogenic treated on the microstructure and hardness of tungsten carbide tools was also investigated for the as-received inserts and deep cryogenic treatment at − 196 °C for 12, 24, and 36 h conditions. Turning experiments have been performed according to an orthogonal array L16 with three parameters (cutting tool, feed rate, cutting speed) at different levels with a 1 mm depth of cut. The ideal cutting tool and cutting parameters were evaluated in terms of the surface roughness (Ra). Analysis of Variance has been applied to determine the percentage of each cutting factor. It has been observed that the cutting speed has a maximum with 66.28% contribution on Ra. The best optimal turning parameters are obtained as A3B3C1 according to S/N ration. The mathematical model of Ra has been developed by regression analysis. The developed model is tested with verification experiments and found to be in good agreement with the experimental results.

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Section: Evaluation Of Experimental Resultsmentioning

confidence: 99%

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Akgün

Demir

2021

SN Appl. Sci.

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“…With every new research and innovations, alloy steels continue to meet the needs. The alloy steel is commonly employed in several sectors, namely, aircraft industry, auto industry, and structures (bridges, buildings) [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method

Erden

Yaşar

Korkmaz

et al. 2021

Int J Adv Manuf Technol

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This study presents the impact of molybdenum (Mo) inclusion on microstructure, mechanical, and machinability behavior of steels manufactured with powder metallurgy (PM) approach. PM steel samples with different molybdenum ratios were pressed at 750-MPa pressing pressure and sintered in the atmosphere-controlled tube furnace at 1400°C for 1 h. While particle size and distribution of phases of PM steels with different molybdenum ratios were determined by optical microscope, mechanical properties were determined by applying tensile test. The results were observed that 3% Mo weight-added steel displayed the maximum yield and tensile strength. In addition, the machinability properties of 3% Mo-added steel, which has the highest yield and tensile strength, were investigated. In this work, we researched the thrust force and surface roughness as machinability output, and drilling parameters on the output were determined by utilizing analysis of variance. Finally, SEM images were taken from the inner surfaces of the machined holes and the fractured surfaces from tensile test, and information about the machinability of this alloy produced with PM was presented. As a result, an increase in yield and tensile strength and a reduction in strain were identified with the increase in Mo content. Moreover, the coated cutting tools are better on the machining output than the uncoated cutting tools in terms of green environment. The most important factors on the Fz and Ra are the coating condition and the feed rate with 56.53% and 43.62% PCR, respectively.

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“…There are many factors that have an influence upon product cost and quality; for example, rigidity of machine tool, the workpiece and tool materials, machining parameters, cooling etc. Therefore, numerous researchers recommend that the cutting simulation and optimization of input parameters is necessary to reduce the production cost and machining time [7][8][9][10][11][12][13][14][15]. Yaşar [16] investigated the thrust force modelling by using Advantedge software and optimization of Ra in drilling of AA-7075.…”

Section: Introductionmentioning

confidence: 99%

Optimization and Finite Element Modelling of Tool Wear in Milling of Inconel 625 Superalloy

Akgün

Demir

2021

Politeknik Dergisi

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This study focuses on optimization of cutting conditions and numerical analysis of flank wear in milling of Inconel 625 superalloy using PVD AlTiN and CVD TiCN/Al2O3/TiN-coated carbide inserts. The milling experiments have been performed in CNC vertical machining centre according to Taguchi L18 orthogonal array. Finite element modelling of tool wear was performed using Deform 3D software. Analysis of variance was utilized to define the influences of the milling conditions on Vb. The results showed that the feed rate (with 41.5% contribution rate) is the most important parameter affecting Vb. The linear and quadratic regression analyses were used to estimate the results of the test. The regression analysis results showed that the estimated Vb values achieved by the quadratic regression model were more effective compared to the linear regression model. Statistical results revealed that the Taguchi method was successful to define optimum cutting parameters in the milling of Inconel 625.

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Influence of the heat treatment on the microstructure and machinability of AISI H13 hot work tool steel

Cited by 34 publications

References 15 publications

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method

Optimization and Finite Element Modelling of Tool Wear in Milling of Inconel 625 Superalloy

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