End milling of Inconel 718 using solid Si3N4 ceramic cutting tools

Finkeldei, Daniel; Sexauer, Marcus; Bleicher, Friedrich

doi:10.1016/j.procir.2019.03.280

Cited by 26 publications

(8 citation statements)

References 13 publications

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“…Silicon nitride (Si 3 N 4 ) ceramics are widely used as structure ceramics for cutting applications due to their good toughness, high strength, low density, high hardness, and good thermal shock resistance. [1][2][3][4][5][6] It has been widely reported that Si 3 N 4 -based ceramic cutting tools can be used for cutting cast iron [7][8][9] and superalloy 10,11 materials.…”

Section: Introductionmentioning

confidence: 99%

Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride

Luo

Guo

et al. 2022

Int J Applied Ceramic Tech

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Cutting performances of silicon nitride (Si 3 N 4 ) ceramic cutting tools with and without boride additive (2.5 vol% ZrB 2 or TiB 2 ) prepared by hot-pressing at 1500 • C were investigated. Due to the α-to β-Si 3 N 4 phase transformation and low densification temperature, boride-containing Si 3 N 4 ceramics with high hardness and high toughness were obtained. The turning tests showed that the effective cutting lengths of the Si 3 N 4 -2.5 vol% TiB 2 ceramic (∼2480 m) and Si 3 N 4 -2.5 vol% ZrB 2 ceramic (∼2200 m) were higher than the monolithic Si 3 N 4 ceramic (∼1780 m). As the toughness was improved while maintaining relative high hardness, the cutting performances of the boride-containing Si 3 N 4 -based inserts were improved by adding 2.5 vol% ZrB 2 or TiB 2 . The improved cutting performance indicated that the boride-containing Si 3 N 4 ceramics are expected to be used in the field of ceramic cutting tools.

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Section: Introductionmentioning

confidence: 99%

Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride

Luo

Guo

et al. 2022

Int J Applied Ceramic Tech

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“…The development of tool materials has formed a tendency to increase impact strength and bending resistance with unchanged wear and heat resistance [6][7][8][9][10]. Such an increase in mechanical properties opens up the prospect of using solid cutting tools with helical surfaces [11][12][13][14]. The reduction of concentrated point load is one of the most important technical challenges in the design of ceramic tools.…”

Section: Introductionmentioning

confidence: 99%

Development of an approach to automated design and measurement of the front surface of ceramic cutters with a system for modifying the original design

Pivkin

Гречишников

Nazarenko

et al. 2022

Optical Metrology and Inspection for Industrial Applications IX

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A new approach to the automated design and control of ceramic end mills is proposed, which allows creating a group of structures for machining a range of products from various hard-to-cut materials in different modes. The method compares favorably with the existing ones by creating new cutting tool with increased performance, providing an increase in the resistance of mill to brittle fracture up to 2-3 times. The design approach includes a comprehensive measurement module for quality control of products with a reduction in the complexity of measurement up to 10 times in terms of time.

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“…Ceramic tools tackle these limits by allowing to cut at extremely higher temperatures with respect to coated carbides, even close to melting temperature of the workpiece materials [4]. In fact, thanks to their enhanced thermal stability and hot hardness, these tools used in dry cutting induce a strong thermal softening on the workpieces (starting from 700 to 800°C for the Inconel 718) that allows to reduce forces and then increase productivity rates up to one order of magnitude bigger than carbide end mills [5,6]. This is because very high cutting speed ranges (up to 700-800 m/min) can be adopted (even though with reduced radial depth of cuts).…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on Inconel 718 interrupted cutting with ceramic solid end mills

Parenti

Puglielli

Goletti

et al. 2021

Int J Adv Manuf Technol

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Solid ceramic end mills for machining heat resistant super alloys (HRSA) have the potential to generate higher material removal rates, up to one order of magnitude, with respect to standard carbide tools. The machining operations in aerospace industry, where large removals are required to obtain tiny and slender parts like turbine blades, is a cost-intensive task that can benefit of the adoption of ceramic solid end mills. However, these tools show a quite limited tool life, especially when used with interrupted tool engagement strategies. Moreover, they might induce heat-related problems in the workpiece material surface integrity. This paper investigates the cutting and the tool wear during milling Inconel 718 with solid ø12 mm cutting end tool made by SiAlON. The wear mechanisms are studied together with their effects on process signals as cutting forces and power, measured via external and CNC integrated sensors. The carried experimental campaign allowed to find out that tool clogging and edge chipping were the primary cutting phenomena leading the tool wear. Cutting strategy (downmilling or upmilling) produced different results in terms of tool wear sensitivity and process outputs whereas upmilling configuration showed the best results in terms of cutting signals stability and surface integrity. At the same time, cutting speed was found to increase the cutting power more in upmilling than downmilling cutting. The analysis of the forces and power demonstrated that the typical tool wear mechanisms can be traced by signal monitoring due to their high impact on cutting processes. This fact shows the good potential of signal monitoring for a better tool life evaluation.

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End milling of Inconel 718 using solid Si3N4 ceramic cutting tools

Cited by 26 publications

References 13 publications

Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride

Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride

Development of an approach to automated design and measurement of the front surface of ceramic cutters with a system for modifying the original design

An experimental investigation on Inconel 718 interrupted cutting with ceramic solid end mills

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End milling of Inconel 718 using solid Si3N4 ceramic cutting tools

Cited by 26 publications

References 13 publications

Cutting performance improvement of Si3N4 ceramic cutting tools by adding boride

Cutting performance improvement of Si3N4 ceramic cutting tools by adding boride

Development of an approach to automated design and measurement of the front surface of ceramic cutters with a system for modifying the original design

An experimental investigation on Inconel 718 interrupted cutting with ceramic solid end mills

Contact Info

Product

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Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride

Cutting performance improvement of Si₃N₄ ceramic cutting tools by adding boride