Tool damage and machined-surface quality using hot-pressed sintering Ti(C7N3)/WC/TaC cermet cutting inserts for high-speed turning stainless steels

Zou, Bin; Zhou, Huijun; Huang, Chuanzhen; Xu, Kaitao; Wang, Jun

doi:10.1007/s00170-015-6823-x

Cited by 32 publications

(14 citation statements)

References 18 publications

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“…Zou et al [21] developed a new cutting tool using a hot-pressed technology, and evaluated the cutting performance using a standard orthogonal array experiment. Fan et al [22] reported the optimised cutting parameters used in turning of Inconel 718 with PVD coated carbide tool, improving the surface quality.…”

Section: Open Accessmentioning

confidence: 99%

Experimental Evaluation on Grinding Texture on Flank Face in Chamfer Milling of Stainless Steel

Liu

Shi

et al. 2018

Chin. J. Mech. Eng.

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The surface quality of chamfer milling of stainless steel is closed related to the products of 3C (Computer, Communication and Consumer electronics), where a cutter is a major part to achieve that. Targeting a high-quality cutter, an experimental evaluation is carried out on the influence of grinding texture of cutter flank face on surface quality. The mathematic models of chamfer cutter are established, and they are validated by a numerical simulation. Also the grinding data are generated by the models and tested by a grinding simulation for safety reasons. Then, a set of chamfer cutting tools are machined in a five-axis CNC grinding machine, and consist of five angles between the cutting edge and the grinding texture on the 1st flank faces, i.e., 0°, 15°, 30°, 45° and 60°. Furthermore, the machined cutting tools are tested in a series of milling experiments of chamfer hole of stainless steel, where cutting forces and surface morphologies are measured and observed. The results show that the best state of both surface quality and cutting force is archived by the tool with 45° grinding texture, which can provide a support for manufacturing of cutting tool used in chamfer milling.

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Section: Open Accessmentioning

confidence: 99%

Experimental Evaluation on Grinding Texture on Flank Face in Chamfer Milling of Stainless Steel

Liu

Shi

et al. 2018

Chin. J. Mech. Eng.

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“…Precision hard turning refers to the use of a single point tool to machine materials that have high strength, corrosive resistance, toughness, ductility, and wear resistance [2]. These are referred to as ‘hard-to-cut’ materials, e.g., nickel superalloys, titanium alloys, and stainless steel [3,4]. Precision hard turning is considered a profitable and dependable alternative to grinding, with a reduction in machining time as high as 60% [5].…”

Section: Introductionmentioning

confidence: 99%

“…These benefits are especially noticeable with, for example ceramics, polycrystalline cubic boron nitride (PcBN) and tungsten carbide tools which are commercially available as super-hard tool materials. Different approaches, entailing experimental [1,3,4,5,6,7,9,10,11,12,13], analytical [14,15], and FEM [16,17,18,19,20,21,22,23,24,25,26,27,28,29], have been utilized to examine the performance of a wide range of machining operations in terms of surface quality, generated cutting force and tool wear. Nevertheless, the potential of the precision hard turning process has not been fully realized as of yet.…”

Section: Introductionmentioning

confidence: 99%

FEM-Based Study of Precision Hard Turning of Stainless Steel 316L

et al. 2019

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This study aims to investigate chip formation and surface generation during the precision turning of stainless steel 316L samples. A Finite Element Method (FEM) was used to simulate the chipping process of the stainless steel but with only a restricted number of process parameters. A set of turning tests was carried out using tungsten carbide tools under similar cutting conditions to validate the results obtained from the FEM for the chipping process and at the same time to experimentally examine the generated surface roughness. These results helped in the analysis and understanding the chip formation process and the surface generation phenomena during the cutting process, especially on micro scale. Good agreement between experiments and FEM results was found, which confirmed that the cutting process was accurately simulated by the FEM and allowed the identification of the optimum process parameters to ensure high performance. Results obtained from the simulation revealed that, an applied feed equals to 0.75 of edge radius of new cutting tool is the optimal cutting conditions for stainless steel 316L. Moreover, the experimental results demonstrated that in contrast to conventional turning processes, a nonlinear relationship was found between the feed rate and obtainable surface roughness, with a minimum surface roughness obtained when the feed rate laid between 0.75 and 1.25 times the original cutting edge radius, for new and worn tools, respectively.

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“…Ao longo da operação, os revestimentos foram desgastados, o substrato de WC-Co ficou exposto, levando à deterioração da ferramenta e à formação de aresta postiça de corte na superfície de folga, resultando em declínio da qualidade da superfície [12]. Já no torneamento de aço inoxidável com ferramenta cermet à base de Ti(C 7 N 3 )/WC/TaC apresentou [13] um aumento do valor da rugosidade com o aumento das taxas de desgaste de flanco,uma vez que a mesma tornou-se estável após o desgaste acelerado da ferramenta, porém, ampliada no momento da falha catastrófica. Keblouti et al [14] comparando os efeitos dos parâmetros de corte na rugosidade no torneamento do aço AISI 52100 com dureza de 242 HV perceberam que 93,97% da variação de R a quando se usinou com metal duro revestido era explicado pela modificação do avanço enquanto que para o cermet não revestido essa percentagem era de 82,09%.…”

Section: Introductionunclassified

Influência do material da ferramenta de corte sobre a usinabilidade do aço ABNT 4340 no torneamento

et al. 2019

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RESUMONo presente trabalho procurou-se compreender os fenômenos associados à usinagem do aço ABNT 4340 utilizando ferramentas de corte de metal duro e cermet, ambas com geometria do quebra-cavaco para usinagem leve (LP) e média (MP). Nesse sentido, analisou-se a influência da variação do avanço, quebracavaco e o material da ferramenta de corte nos parâmetros de resposta do processo, força de corte, rugosidade, forma do cavaco e análise das superfícies de saída e de folga dos insertos durante a operação de torneamento. Inicialmente, um planejamento fatorial completo 2³ foi empregado para análise da força de corte e rugosidade. Em relação à análise da força de corte, a análise de variância (ANOVA) indicou que o material da ferramenta de corte e o avanço afetaram significativamente a força de corte, sendo os menores valores alcançados com a ferramenta de corte cermet e o menor nível de avanço. Quanto à rugosidade R q , diferentes níveis de materiais de ferramenta ou quebra-cavacos não foram suficientes para alterar significativamente o valor de R q . Em relação ao cavaco, o avanço e o tipo de quebra-cavaco influenciaram na sua forma. Como última análise, para os parâmetros de corte estabelecidos e percurso de corte, não foi possível identificar desgaste nas ferramentas de corte, no entanto, a análise por EDS apontou a adesão de material nas superfícies de folga e de saída para ambas ferramentas avaliadas.Palavras-chave: aço ABNT 4340. Torneamento. Metal duro. Cermet. ABSTRACTIn the present work the aim was to understand the phenomena associated with the machining of ABNT 4340 steel using carbide and cermet cutting tools, both with chipper geometry for light (LP) and medium machining (MP). In this sense, the influence of the variation of the feed rate, the chip breaker and the cutting tool material on the parameters of process response, shear force, shear strength, chip form and analysis of the outlet and gap surfaces of the inserts during the turning operation. Initially, a complete factorial design 2³ was used for analysis of shear strength and roughness. In relation to the shear force analysis, the analysis of variance (ANOVA) indicated that the cutting tool material and the feed significantly affected the cutting force, the lowest values being obtained with the cermet cutting tool and the lowest level of advancement. As for R q roughness, different levels of tool materials or chip breakers were not sufficient to significantly alter the value of R q . In relation to the chip, the advance and the type of chipbreaker influenced its shape. As a last analysis, it was not possible to identify wear on the cutting tools, for the established cutting parameters and cut path, however, the EDS analysis pointed to the adhesion of material to the clearance and exit surfaces for both tools evaluated. REIS, B.C.M.; PEREIRA, N.F.S.; SANTOS, A.J., et al. revista Matéria, v.24, n.3, 2019.

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Tool damage and machined-surface quality using hot-pressed sintering Ti(C7N3)/WC/TaC cermet cutting inserts for high-speed turning stainless steels

Cited by 32 publications

References 18 publications

Experimental Evaluation on Grinding Texture on Flank Face in Chamfer Milling of Stainless Steel

Experimental Evaluation on Grinding Texture on Flank Face in Chamfer Milling of Stainless Steel

FEM-Based Study of Precision Hard Turning of Stainless Steel 316L

Influência do material da ferramenta de corte sobre a usinabilidade do aço ABNT 4340 no torneamento

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