Investigation on influence of micro-textured tool in machining of Ti-6Al-4V alloy

Jahaziel, R. Bibeye; Krishnaraj, V.; Priyadarshini, B. Geetha

doi:10.1007/s12206-022-0334-0

Cited by 19 publications

(2 citation statements)

References 31 publications

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“…Hence shorter, curlier and discontinuous type chips were observed when machined using tool T3. 52 Tool T4, which was developed by coating the cutting edge of the dimple textured tool by an effective AlSi-10Mg soft coating, recorded the best chip morphology characteristics of all the tools as observed from Figure 10. While the soft coated film ensured smooth sliding of chips by imparting excellent lubrication characteristics, the micro-patterns ensured superior heat dissipation properties that helped in minimizing the adhering tendency of chip along the contact interfaces.…”

Section: Resultsmentioning

confidence: 92%

Tool surface modification methodology to improve the machinability of Ti6Al4V through combination of micro-EDM texturing and AlSi-10Mg soft coating techniques in dry turning

George

Sahu

Dhanish

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Machinability of Ti-6Al-4V, despite its numerous applications, is challenging owing to its poor thermal conductivity, severe chemical affinity and strain hardening characteristics. Although various coating techniques and expensive lubrication strategies have been tried, a significant improvement in tool life characteristics are yet to be achieved. Hence this work aims at suggesting a novel cost-effective and ecofriendly tool treatment technique by exploring the impact of a dual combination of an AlSi-10Mg coating developed by an emerging pre-conditioning technique with the incorporation of micro-textures on tool face to observe significant improvements in tool life and machinability characteristics of the alloy. It was analyzed from the results that while the micro-textures played a vital role in reducing the severe contact stress and machining temperature due to its improved heat transfer by convection, AlSi-10Mg film effectively shielded the cutting edges of the tool by providing a dampening effect along the edges, thereby ensuring improved tool life and enhanced machinability characteristics at the same time. The proposed tool combination was observed to be successful in significantly reducing the flank wear by 35%, 43% and 30% where 75, 253, and 371 µm were observed at 80, 100, and 120 m/min as compared to 117, 449, and 531 µm in the case of uncoated non-textured tool at the same operating conditions. Surface roughness of Ti-6Al-4V also reduced by 25%, 34%, and 37% where 1394, 1168, and 872 nm as compared to plain tool where 1840, 1770, and 1370 nm were recorded. Moreover, average chip curl diameter was observed to be 2.62, 3.36, and 6.49 mm as compared to chips generated by uncoated tools which recorded values of 4.33, 11.9, and 18.87 mm at 80, 100, and 120 m/min respectively.

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Section: Resultsmentioning

confidence: 92%

Tool surface modification methodology to improve the machinability of Ti6Al4V through combination of micro-EDM texturing and AlSi-10Mg soft coating techniques in dry turning

George

Sahu

Dhanish

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Rake face texturing of the cutting tool is most promising technique to reduce friction and cutting temperature in machining zone without use of cutting fluids for sustainability in machining [3]. Few researchers have been studied the different types textures and its influence on cutting tool performance [4][5][6].According to Yayun Liu et al [7], the geometric parameters (groove width, pitch and distance from cutting edge) of the micro-groove textures have a substantial influence on the cutting tool performance. Xu Wanget al [8] and Yong sheng su et al [9] fabricated micro-grooves by laser ablation process to improve the tool performance.…”

Section: Introductionmentioning

confidence: 99%

High Speed Steel Tool Performance through Hybrid Texturing Followed by Shock Peening towards Sustainable Machining

Prasad,

Ismail,

Satish

2024

J. Mach. Manuf. Reliab.

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Surface texturing is a promising sustainable technique to get better the machining performance of cutting tools. Laser surface texturing and micro-EDM are the most commonly used fabrication techniques and the textured tools exhibit better tool performance as compared to conventional tool. However, these processes involve re-solidification of material surface which makes the surface softening and reduction in the surface hardness. In the present work, cutting performance of the High-Speed Steel (HSS) tool is studied by fabricating hybrid (microgrooves with dimples) textures on its rake face using both laser ablation and micro-EDM methods followed by laser shock peening without ablative coating (LSPWAC) process. Hybrid textured with shock peened HSS tools are used in orthogonal dry turning of 316 L stainless steel. It has been observed that hybrid textures with shock peened HSS tool exhibits higher tool life of up to 255% and 85% than the conventional and the hybrid textured (HT) tools respectively. The results shown that surface texturing followed by shock peening is an innovative method to improve the sustainability in machining process than only surface texturing method. Moreover, analysis of chip is studied by finite element analysis.

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A comprehensive review of tool surface texturing in the cutting process

Zhou

Zhou²,

Yuan³

et al. 2022

Int J Adv Manuf Technol

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Investigation on influence of micro-textured tool in machining of Ti-6Al-4V alloy

Cited by 19 publications

References 31 publications

Tool surface modification methodology to improve the machinability of Ti6Al4V through combination of micro-EDM texturing and AlSi-10Mg soft coating techniques in dry turning

Tool surface modification methodology to improve the machinability of Ti6Al4V through combination of micro-EDM texturing and AlSi-10Mg soft coating techniques in dry turning

High Speed Steel Tool Performance through Hybrid Texturing Followed by Shock Peening towards Sustainable Machining

A comprehensive review of tool surface texturing in the cutting process

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