Cutting Forces during Inconel 718 Orthogonal Turn-Milling

Felusiak-Czyryca, Agata; Madajewski, Marek; Twardowski, Paweł; Wiciak-Pikuła, Martyna

doi:10.3390/ma14206152

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…It included: a On the basis of preliminary research, it was determined that the appropriate moments to measure tool wear were runs number 1, 2, 3, 6, and 9 for the assumed machining parameters. The basic parameter determining the wear of the cutting tool during milling of the Inconel alloy is usually, according to Felusiak-Czyryca et al [25] the average width of the wear band of the flank face V BB and according to Szablewski et al [26] the radial wear KE, with the former being used more frequently, and this is the parameter that was analyzed as the basis for determining the wear of the cutting tool. The wear measurements of the cutting inserts were carried out in a measurement laboratory.…”

Section: Methodsmentioning

confidence: 99%

Investigation of Cutting Tool Wear in the Milling Process of the Inconel 718 Alloy

Piórkowski,

Borkowski,

Bartoszuk

et al. 2024

Adv. Sci. Technol. Res. J.

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The article presents the results of research on the wear of the cutting tool in the process of high feed milling and plunge milling of the Inconel 718 alloy. A specially designed milling head was used in the study, allowing both of the previously mentioned milling methods to be implemented with a single tool. Ceramic inserts CNGN120712 in versions CS300 and CW100 were used for the research. During the experiment, the values of cutting depth a p [mm], cutting width a e [mm] and feed per edge f z [mm/edge] were changed. The study was conducted under the conditions of accelerated wear. The results show the tool life in individual tests using the parameter of the material volume predicted to be removed in the tool life cycle G max [cm 3 ], obtained by third degree polynomial approximation. For milling with high feeds, the volume of material expected to be removed over the tool life cycle G max ranged from 54 to 106 cm 3 , whereas for plunge milling it ranged from 33 to 73 cm 3 .

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Section: Methodsmentioning

confidence: 99%

Investigation of Cutting Tool Wear in the Milling Process of the Inconel 718 Alloy

Piórkowski,

Borkowski,

Bartoszuk

et al. 2024

Adv. Sci. Technol. Res. J.

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show abstract

“…Despite its outstanding properties, the workability of Inconel 718 shows several unsolved critical issues. Its peculiar physics characteristics, such as its lower thermal conductivity, work hardening, presence of abrasive carbide particles, hardness, affinity for reacting with the tool material, etc., make Inconel 718 difficult to machine [4][5][6]. Recent advances in various material processing techniques, e.g., turning, milling and drilling, for machining Inconel 718 are investigated and discussed in [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Hot Extruded Inconel 718

Bacchetti

Coppola

Bona

et al. 2023

Metals

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Inconel 718 is a widely used superalloy, due to its unique corrosion resistance and mechanical strength properties at very high temperatures. Hot metal extrusion is the most widely used forming technique, if the manufacturing of slender components is required. As the current scientific literature does not comprehensively cover the fundamental aspects related to the process–structure relationships, in the present work, a combined numerical and experimental approach is employed. A finite element (FE) model was established to answer three key questions: (1) predicting the required extrusion force at different extrusion speeds; (2) evaluating the influence of the main processing parameters on the formation of surface cracks using the normalized Cockcroft Latham’s (nCL) damage criterion; and (3) quantitatively assessing the amount of recrystallized microstructure through Avrami’s equation. For the sake of modeling validation, several experimental investigations were carried out under different processing conditions. Particularly, it was found that the higher the initial temperature of the billet, the lower the extrusion force, although a trade-off must be sought to avoid the formation of surface cracks occurring at excessive temperatures, while limiting the required extrusion payload. The extrusion speed also plays a relevant role. Similarly to the role of the temperature, an optimal extrusion speed value must be identified to minimize the possibility of surface crack formation (high speeds) and to minimize the melting of intergranular niobium carbides (low speeds).

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Study of the effect of cutting modes on output parameters under high-speed steel turn-milling

Matlygin

Savilov

Pyatykh

et al. 2022

Vestnik Donskogo gosudarstvennogo tehničeskogo universiteta

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Introduction. The article elucidates increasing the efficiency of turn-milling of powdered metal high-speed steel products. Turn-milling can be used as an alternative to the traditional turning method. The article describes advantages of the turn-milling method. A review of studies devoted to improving the surface quality of parts when turning by milling is given. The work aims at determining the effect of cutting modes on the surface roughness by the orthogonal turning method through milling powdered high-speed steel with a monolithic cutter.Materials and Methods. Statistical analysis methods based on the creation of a mathematical model for predicting microgeometric deviations of the treated surface were used. An experimental research method was applied to verify the adequacy of the mathematical model. The experiment was planned according to the non-composite design proposed by Box and Behnken. The experiment was carried out on a turning machining center with a driving tool. Powdered highspeed steel BÖHLER S390 MICROCLEAN was used as sample material for the experiment. A monolithic carbide milling cutter served as a cutting tool. During the experiment, the cutting speed, milling width, and feed per tooth varied. The roughness of the treated surface was measured by a contact profilometer.Results. A mathematical model of the formation of surface roughness depending on the processing modes was developed. During the experiments, the effect of cutting speed, tool feed, and radial cutting depth on the roughness of the treated surface was determined. It was established that the dependence of roughness on feed had a linear character over the entire investigated range of cutting modes. In turn, the dependence of roughness on the cutting speed and cutting width had a parabolic character. The results obtained allowed us to achieve the roughness of the treated surface Ra = 1.85 without reducing the processing performance. Discussion andConclusions. The developed mathematical model reflects the impact of cutting modes on the surface roughness when turning high-speed steel with a monolithic cutter. The results of the conducted research can be used to determine the optimal cutting modes that provide a given surface quality in the manufacture of real parts under the production conditions. It is recommended to continue the research with the control of additional output parameters, such as temperature and vibration. Reducing the effect of regenerative self-oscillations on the roughness of the treated surface can be reached through assigning the cutting modes based on the results of a modal analysis of the process system.

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Cutting Forces during Inconel 718 Orthogonal Turn-Milling

Cited by 3 publications

References 15 publications

Investigation of Cutting Tool Wear in the Milling Process of the Inconel 718 Alloy

Investigation of Cutting Tool Wear in the Milling Process of the Inconel 718 Alloy

Experimental and Numerical Investigation of Hot Extruded Inconel 718

Study of the effect of cutting modes on output parameters under high-speed steel turn-milling

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