Influences of Cutting Edge Microgeometry on Durability when Milling ISO S Material

Hronek, Ondřej; Zetek, Miroslav; Bakša, Tomáš; Adámek, Pavel

doi:10.21062/ujep/111.2018/a/1213-2489/mt/18/3/394

Cited by 1 publication

(2 citation statements)

References 6 publications

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“…Given that the manufacturer's original tool has a cutting radius of 7 to 12 µm, this is not a surprising result, but it should be noted that the marginal increase in the diameter of the cutting radius had a significantly negative impact on the tool's lifespan, underlining the importance of accurate microgeometry preparation of the cutting edge. Furthermore, this result does not correspond with findings by other authors that machined Inconel 718 with tools with modified microgeometry, where tools with cutting edge radius of 15 µm performed the best [23,24].…”

Section: Cutting Forces -Inconel 718contrasting

confidence: 99%

“…This is also caused by different cutting conditions and mechanical properties of the machined material. As stated in the table 9, Inconel 718 alloy has nearly double the tensile strength than the stainless steel, which causes higher force load on the cutting edge and this effect gets exacerbated by the increasing radius of the cutting edge rounding [24]. However, the differences between individual cutting tools with different microgeometry modification were still observed.…”

Section: Cutting Forces -Inconel 718mentioning

confidence: 99%

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Influence of cutting edge microgeometry on the cutting forces when machining difficult-to-cut materials

Vozár,

Pätoprstý,

Vopát

2024

J. Phys.: Conf. Ser.

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The paper presents research investigating the influence of cutting tools microgeometry on the cutting forces when milling difficult-to-cut materials. Austenitic stainless steel AISI 316L and nickel alloy Inconel 718 were machined with cemented carbide tools with various cutting edge rounding size while measuring the cutting forces during the process. From the standpoint of milling difficult-to-cut materials lowering the cutting forces load on the tool can be difficult to achieve without significant reduction of cutting parameters. Previous research into the cutting edge microgeometry suggests that modification of the cutting edge of milling tools can substantially extend the effective tool life, reduce cutting forces in the process and ensure higher quality of the machined surface. Results of long term wear tests of tools with cutting edge rounding sizes of 15, 30 and 45 µm are compared to the results of a sharp unprepared cutting tool, and the results of each machined material are also compared. Possible influence of cutting edge radius on the process for both materials was tested for cutting conditions constituting finishing operation. The most effective cutting edge radius size differed between the materials, with 15 µm rounding performing the best for AISI 316L and the sharp unprepared tool performing the best for the Inconel 718 alloy.

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Section: Cutting Forces -Inconel 718contrasting

confidence: 99%

Section: Cutting Forces -Inconel 718mentioning

confidence: 99%