Influence of a micropatterned insert on characteristics of the tool–workpiece interface in a hard turning process

Kim, Dong-Min; Lee, Ineon; Kim, Sun Keel; Kim, Bo Hyun; Park, Hyung Wook

doi:10.1016/j.jmatprotec.2015.09.018

Cited by 90 publications

(18 citation statements)

References 34 publications

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“…For example, micro-patterned tool’s surface often reduces the coefficients of friction, cutting force and tool wear22, nano-patterned channel boundaries facilitate the low-friction flows of liquid23. In general, the crucial role of surface textures as oil pockets to reduce friction and the assistance in tripping off wear debris242526.…”

mentioning

confidence: 99%

Tuning apparent friction coefficient by controlled patterning bulk metallic glasses surfaces

Liu

et al. 2016

Sci Rep

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Micro-honeycomb structures with various pitches between adjacent cells were hot-embossed on Zr35Ti30Cu8.25Be26.75 bulk metallic glass surface. The effect of pitch geometry on the frictional behavior of metallic glass surface was systematically investigated. The results revealed that all textured metallic glass surfaces show a reduction in friction coefficient compared to smooth surface. More intriguingly, the friction coefficient first decreased and then increased gradually with increasing pitches. Such unique behavior can be understood fundamentally from the perspective of competing effects between contact area and local stress level with increasing pitches. This finding not only enhance the in-depth understanding of the mechanism of the significant role of surface topography on the frictional behavior of metallic glass surface, but also opens a new route towards other functional applications for bulk metallic glasses.

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confidence: 99%

Tuning apparent friction coefficient by controlled patterning bulk metallic glasses surfaces

Liu

et al. 2016

Sci Rep

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“…They analysed the tool wear phenomenon and noticed that BUE formation was significantly reduced in dimple textured tool. Kim et al developed diagonal grooves on rake surface of CBN tool using the micro-EDM process for machining AISI 52100 steels under dry condition (Kim et al, 2016). They observed significant reduction in tool wear and coefficient of friction by 11 and 35%, respectively, while also observing 10% decrease in main cutting force, when textured tools were used.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations on the wear behaviour of micro-EDM-fabricated textured tools during dry turning of Ti6Al4V

Sahu

George

Kuriachen

et al. 2022

ILT

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Purpose This paper aims to focus on analysing the wear characteristics of tungsten carbide tools on which various micro patterns are fabricated to study its effect on the machinability of Ti-6Al-4V at dry turning conditions. Design/methodology/approach Micro-patterns such as dimples, linear grooves and a novel combination of dimples and linear grooves were fabricated on rake faces of uncoated tools by micro-EDM process. Impact of these patterns on tool wear and chip morphology characteristics under dry machining conditions were analysed, and their performances were compared with the non-textured tool (NTT). Findings Encouraging results in terms of minimal tool wear and favourable chip morphology characteristics were observed in case of all the textured tools, which demonstrated better tribological characteristics in contrast to NTT. The average flank wear was reduced by 43.5, 32 and 24.7% in dimple textured tool (DTT), linear textured tool (LTT) and hybrid textured tool (HTT), respectively, as compared to NTT. The average chip curl diameters measured for NTT, DTT, LTT, and HTT were observed to be 6.60, 3.51, 4.0 and 4.31 mm, respectively. Originality/value The contribution of this work lies in fabricating innovative patterns using cost-effective micro-EDM process and analysing how the patterns, depending upon their dimensional area and wear debris accumulation characteristics, influence the machinability of Ti-6Al-4V in the absence of any lubrication mediums.

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“…Dong et al used a micro EDM system with a cylindrical micro tool to generates a micropatterned insert. They achieved to decreases cutting force in hard turning machining [ 20 ]. Koshy and Tovey used EDM to texturize a finish-ground cutting tool.…”

Section: Introductionmentioning

confidence: 99%

Combined Manufacturing Process of Copper Electrodes for Micro Texturing Applications (AMSME)

et al. 2021

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Surface texturing has brought significant improvements in the functional properties of parts and components. Sinker electro discharge machining (SEDM) is one of the processes which generates great texturing results at different scale. An electrode is needed to reproduce the geometry to be textured. Some geometries are difficult or impossible to achieve on an electrode using conventional and even unconventional machining methods. This work sets out the advances made in the manufacturing of copper electrodes for electro erosion by additive manufacturing, and their subsequent application to the functional texturing of Al-Cu UNS A92024-T3 alloy. A combined procedure of digital light processing (DLP) additive manufacturing, sputtering and micro-electroforming (AMSME), has been used to produce electrodes. Also, a specific laboratory equipment has been developed to reproduce details on a microscopic scale. Shells with outgoing spherical geometries pattern have been manufactured. AMSME process has shown ability to copper electrodes manufacturing. A highly detailed surface on a micrometric scale have been achieved. Copper shells with minimum thickness close to 300 µm have been tested in sinker electro discharge machining (SEDM) and have been shown very good performance in surface finishing operations. The method has shown great potential for use in surfaces texturing.

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Influence of a micropatterned insert on characteristics of the tool–workpiece interface in a hard turning process

Cited by 90 publications

References 34 publications

Tuning apparent friction coefficient by controlled patterning bulk metallic glasses surfaces

Tuning apparent friction coefficient by controlled patterning bulk metallic glasses surfaces

Experimental investigations on the wear behaviour of micro-EDM-fabricated textured tools during dry turning of Ti6Al4V

Combined Manufacturing Process of Copper Electrodes for Micro Texturing Applications (AMSME)

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