Surface alloying of H11 die steel by tungsten using EDM process

Gill, Amoljit Singh; Kumar, Sanjeev

doi:10.1007/s00170-014-6743-1

Cited by 43 publications

(20 citation statements)

References 26 publications

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“…7 Hwang et al, 2010 [15] Ni Ti-Gr (Graphite ) Multi layered electrode s Enhancement in the Surface was observed with better surface finish, the cracks were also fund to be reduced. 8 Stambek ova et al, 2012 [16] 5083 Al Si-Fe alloy Micro hardness of 5083 Al enhanced and same happended to corrosion resistance also. 9…”

Section: Many Typesmentioning

confidence: 93%

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Major Developments in EDM Surface Alloying using Composite Material Tool Electrode

Goyal*¹

2019

IJITEE

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Electric Discharge alloying/Coating (EDC) is an emerging field for the surface modification of advanced engineering materials like tool steel, high heat resistance alloy, titanium alloy etc. The advanced engineering materials have good mechanical properties and are used for the engineering applications like dies, aerospace, and automotives. To treat these difficult-to-machine advanced engineering materials with new challenges, numerous advancements in electrical discharge machining (EDM) processes have been carried out. Electrode materials for EDM are usually made up of copper, and its alloys. Proper selection with composition of electrode materials are required to avoid cracks, residual stresses etc during or after Electrical Discharge Machining and at the same time to have better surface finish and material removal rate and lower tool wear rate of the electrode. Further electrodes can be prepared by different methods like powder metallurgy, stir casting technique etc. This paper presents the brief details of effect of different electrodes on the surface and machining characteristics.

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Section: Many Typesmentioning

confidence: 93%

“…Metal transport from the copper tungsten electrode were observed using electron spectroscopy (for chemical analysis) 8 Kruth et al, 1998 [14] Mild steel…”

Section: Achievements In the Field Of Surface Alloyingmentioning

confidence: 99%

Major Developments in EDM Surface Alloying using Composite Material Tool Electrode

Goyal*¹

2019

IJITEE

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“…Many methods are reported to improve a particular surface property by alloying the workpiece surface with suitable elements using EDM. Researchers have used sintered or semi-sintered powder metallurgy (PM) electrode, [5][6][7] powder suspended in a dielectric fluid [8][9][10][11] and suitable dielectric fluid 12 for surface alloying. Research is going on to investigate the performance of tool electrode manufactured by PM process.…”

Section: Literature Reviewmentioning

confidence: 99%

Micro-hardness evaluation for surface alloying of H11 die steel with Cu–Cr–Ni powder metallurgy tool in electrical discharge machining

Gill

Kumar

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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Electrical discharge machining is a non-conventional material removal process; recently, efforts have been made to use it as a surface alloying/modifying method. This study investigates and compares the micro-hardness of the surface machined by electrical discharge machining process using composite tool electrode (copper-chromium-nickel) manufactured by powder metallurgy and conventional copper tool. Design of experiment is used to find the best level of process parameters in order to achieve high micro-hardness. The machined surfaces are subsequently analyzed using different techniques like scanning electron microscopy, X-ray diffraction and energy-dispersive spectroscopy to ascertain the surface characteristics. Results indicate that the micro-hardness of the alloyed surface formed by powder metallurgy tool electrode is improved by 96.3% as compared to base material and 65.7% as compared to the surface machined by conventional copper electrode. Energy-dispersive spectroscopy of the surface machined using powder metallurgy electrode confirms significant material migration from tool and dielectric to the machined surface. The X-ray diffraction shows the formation of cementite (Fe 3 C), intermetallic compound of iron, chromium and nickel (FeCrNi) and chromium carbide (Cr 7 C 3) on the surface machined using powder metallurgy electrode.

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“…8mm and 10mm having side flushing by using Taguchi strategy, S/N ratio and ANOVA to identify the optimum cutting parameters and found that different combinations of input controllable variables were needed to have greater MRR and better SF. Amoljit S. Gill et al (2015) were carried out [51] study to investigate the phenomenon of H11 hot die steel surface alloying by considering six input parameters using coppertungsten tool by using L18 OA Taguchi method, DOE, ANOVA, SEM-XRD and EDS to achieve the high SF and MH. They found the on the machined surface by XRD technique, there was a formation of cementite and tungsten carbide.…”

Section: IIImentioning

confidence: 99%

Experimental Investigations into the Effect of Process Parameters on Performance Measures of Sink EDM Process: A Review Year 2011 To 2015 and Future Work

Choudri¹,

Gorabal²

2016

IJERT

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Sink Electrical Discharge Machining (Sink EDM) is a one of the important NTM process wherein electrically conductive work pieces are melted, vaporized (thermal erosion) by immersing in a dielectric fluid; tool electrode and work piece between the DC supply two poles either positive or negative and electric discharges takes place produces very high temperature in few micro seconds. It is widely used in defense, aerospace, automotive, micro systems, mould and die making industries. Recently researchers have discovered many ways to improve process parameters for achieving higher MRR, lower TWR and better surface quality. The paper reviews the works carried out from 2011 to till 2015. It reports on the research related to improve performance measures. The primary objective of analysis is to optimize the process parameters with the help of taguchi robust design methodology, design of experiment (DOE), analysis of variance(ANOVA), signal to noise ratio(S/N ratio, analysis of means (ANOM), face centered or rotational central composite design (CCD), scanning electron microscopy (SEM), X ray diffraction (XRD), response surface methodology (RSM), gray relational analysis (GRA), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), multiple regression analysis (MRA), mass spectrometry, optical microscopy techniques, fractional factorial design(FFD) with CCD and finite element analysis (FEM), etc. In end of the paper suggestions useful for future work has been indicated.

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Surface alloying of H11 die steel by tungsten using EDM process

Cited by 43 publications

References 26 publications

Major Developments in EDM Surface Alloying using Composite Material Tool Electrode

Major Developments in EDM Surface Alloying using Composite Material Tool Electrode

Micro-hardness evaluation for surface alloying of H11 die steel with Cu–Cr–Ni powder metallurgy tool in electrical discharge machining

Experimental Investigations into the Effect of Process Parameters on Performance Measures of Sink EDM Process: A Review Year 2011 To 2015 and Future Work

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