An investigation of the effect of a new tool treatment technique on the machinability of Inconel 718 during the turning process

Montazeri, Saharnaz; Aramesh, Maryam; Veldhuis, Stephen C.

doi:10.1007/s00170-018-2669-3

Cited by 16 publications

(3 citation statements)

References 34 publications

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“…Plasma arc cutting experiments were meticu-lously carried out using a high-precision CNC plasma cutting machine, as anticipated in advance [30] (Indian manufacturer: Pro arc welding and cutting system Pvt. Ltd.) [31]. The system comes with Plasma CAM CNC software, which allows it to cut work pieces up to 40 millimeters thick at a nozzle traverse speed of 12 meters/ minute [32].…”

Section: Methodsmentioning

confidence: 99%

Optimization of Plasma Arc Cutting Parameters on Machining of Inconel 718 Superalloy

Karthick

Anand

Meikandan

et al. 2022

Journal of Nanomaterials

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Nickel-based super composites are widely applied in the industry. These alloys withstand high thermal debility conditions and give better strength to machine parts in aviation, biomechanical, marine, and vehicle commerce. Nickel-based alloys have high quality, corrosion resistance, and high heat refusal. Inconel 718 is one such composite extensively utilized in these loading circumstances because of chemical stability, mechanical friction, high thermal corrosion, and high stability. During the cutting procedure, these qualities will bring a lot of processing issues, for example, surface roughness, machining efficiency, and wear of tool. Plasma arc cutting (PAC) is an upsetting metal-cutting process to perform slicing of hard to cut materials even for complex profiles. The present work analyzes the impact of PAC process factors, for instance, gas pressure (GP), arc current (AC), cutting speed (CS), and stand-off distance (SOD) on assessing the kerf width (KW), kerf taper (KT), and heat-affected zone (HAZ) of Inconel 718 superalloy. This work deliberates about the cutting parameters required for the machining of Inconel 718 to provide least surface roughness and low instrument wear. The experiments conducted to validate the ingenuity of the process are in accordance with the optimal parameter settings necessary for machining purposes. The divergence from actuality has been extremely minimal with a relative error of 4.45% for kerf width and 4.36% for the extent of heat-affected zone postmachining.

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Section: Methodsmentioning

confidence: 99%

Optimization of Plasma Arc Cutting Parameters on Machining of Inconel 718 Superalloy

Karthick

Anand

Meikandan

et al. 2022

Journal of Nanomaterials

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“…Entretanto, o alto custo de usinagem, principalmente em função do desgaste severo das ferramentas de corte, inibe a popularização desses materiais, tornando um desafio para as áreas de Engenharia o aprimoramento desse processo de usinagem [Montazeri et al, 2018]. [Goldberg et al, 1990;Kundu et al, 2016;Li et al, 2015;Villares Metals, 2019;Zhang et al,2014].…”

Section: Superligas Resistentes Ao Calorunclassified

Influência Do Gás Argônio Na Vida Da Ferramenta De Metal-Duro Durante O Torneamento Da Superliga Vrc625

Filho¹,

Souza²

2019

10º Congresso Brasileiro De Engenharia De Fabricação

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AGRADECIMENTOSAgradeço a meus pais e amigos pelo incentivo e carinho ao longo desses anos para conclusão dessa importante etapa. Ao professor orientador Dr. André João de Souza, pelo auxílio, pela motivação e, principalmente, pelo conhecimento compartilhado durante a pesquisa, a experimentação e o desenvolvimento da dissertação. À UFRGS (Universidade Federal do Rio Grande do Sul) e ao PROMEC (Programa de Pós-Graduação em Engenharia Mecânica). À empresa Novalloy -Aços e Ligas Especiais, que disponibilizou o material utilizado. À empresa Metalúrgica Venâncio LTDA., pela infraestrutura disponibilizada para a preparação do corpo de prova e análise química da amostra. À empresa Continental Ferramentas, pela doação dos insertos utilizados. Ao técnico do LAUS (Laboratório de Automação em Usinagem), Guilherme Vargas Schirmer, pela disponibilidade, auxílio e orientação na execução dos experimentos. Aos colegas de curso, Everton Cristiano Feix, M. Sc. Rafael Farias Garcia, M. Sc. Elias Samuel Cristo Espíndola e M. Sc. Andressa Caroline da Silva Carvalho e aos amigos Henrique Baier, Luiz Carlos de Moura, e Eduarda Jacobi que sempre estiveram dispostos a ajudar e auxiliar no desenvolvimento desse trabalho. Aos professores, mestres, e a todos que direta ou indiretamente fizeram parte da minha formação, о meu muito obrigado. v RESUMO Superligas à base de níquel possuem elevada resistência mecânica, aliada a uma baixa condutividade térmica. São recomendadas para aplicações em ambientes corrosivos e altas temperaturas como em componentes mecânicos para indústria aeroespacial, química e petrolífera. Entretanto, apresentam baixa usinabilidade. Por isso, a elevada taxa do desgaste da ferramenta de corte e a busca por novas técnicas lubrirrefrigerantes ambientalmente corretas, que minimizem os efeitos das altas temperaturas nas interfaces cavaco-ferramenta e ferramenta-peça, são um dos principais desafios dos pesquisadores durante a usinagem desses materiais. Nesse contexto, realizaram-se ensaios de vida da ferramenta de metal-duro classe S com revestimento PVD utilizando gás argônio durante o torneamento da superliga VRC625 em comparação ao corte a seco. Em ambos os casos (a seco e com gás argônio) foram analisadas as falhas (desgastes e avarias) das ferramentas, as magnitudes das componentes ortogonais da força de usinagem (passiva, corte e avanço), as rugosidades das superfícies usinadas (perfis e parâmetros) e as geometrias dos cavacos gerados. Os resultados apresentaram aspectos favoráveis à utilização do gás argônio, pois promoveu um aumento de 10% na vida útil da ferramenta e redução de 47% no desgaste de entalhe. A utilização do gás argônio proporcionou pequena redução na rugosidade das superfícies usinadas (cerca de 5%) e alteração na geometria do cavaco durante a vida da ferramenta. Porém, não foram observadas mudanças significativas nas amplitudes das forças de usinagem e nas geometrias dos cavacos formados. Palavras-chave: Torneamento da superliga VRC625; Gás argônio; Vida da ferramenta; Força de usinagem; Rugosidade da ...

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“…Its extreme adhesion strength was seen to impart beneficial tribological properties to the tool faces during machining under extreme conditions. 16 AlSi-10Mg soft coating was also observed to generate beneficial tribological films that protect the tool cutting edges form getting worn out quickly. Moreover, it was observed that the soft coating does not get removed from the tool faces even at vigorous machining conditions due to its extremely sticky nature which further explains its effectiveness.…”

Section: Introductionmentioning

confidence: 99%

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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An investigation of the effect of a new tool treatment technique on the machinability of Inconel 718 during the turning process

Cited by 16 publications

References 34 publications

Optimization of Plasma Arc Cutting Parameters on Machining of Inconel 718 Superalloy

Optimization of Plasma Arc Cutting Parameters on Machining of Inconel 718 Superalloy

Influência Do Gás Argônio Na Vida Da Ferramenta De Metal-Duro Durante O Torneamento Da Superliga Vrc625

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

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