A Study on the High-Efficiency Cutting of Austenitic Stainless Steel Using an HfN-Type Coated Tool

Kato, Hidemi; Shintani, Kazuhiro; Nakamura, M.; Sugita, Hiroaki

doi:10.1299/jamdsm.6.829

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…The most divergent sample was stainless steel; tool D had the highest wear rate on the rake side and the smoothest surface (lowest surface parameters). This could be due to a different wear mechanism which can be attributed to the adhesion properties of stainless steel 29–32 in combination with the weakened superficial layer of coating which has undergone plastic deformation. 2 This type of wear can be more severe at locations of high interface temperatures, more prone to plastic deformation, such as on the rake side of the tools.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…In addition to the difficulties of cutting steel, stainless steels were shown to have a high adherence to the coating surface with the possibility of fragments detaching from it. 29–32 The cycle of adherence and tearing can be repeated resulting in loss of coating volume. 33 This suggests fundamentally different wear behaviours when cutting stainless steel compared to cutting low alloyed steel.…”

Section: Methodsmentioning

confidence: 99%

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Shift of wear balance acting on CVD textured coatings and relation to workpiece materials

Bejjani

Odelros

Öhman

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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Innovative textured alumina coatings have been engineered to boost the performance of cutting tools. Different workpiece materials affect the wear inside the CVD textured alumina coating differently on the crater and flank side of the tools. How the balance in wear changes between the crater and flank side of the tool inside the alumina is not fully understood. Furthermore, any changes in steel elements in the workpiece can affect this balance differently. In this work, the wear of alumina coating has been studied after turning different workpiece materials (low alloy steel with and without Ca, ball bearing steel and stainless steel). The worn surfaces of the inserts were studied and their features related to the different materials. It was found that after machining under similar conditions, each workpiece material leaves a different signature, or worn surface, with unique features in the alumina coating layer. The transition between the sliding to the sticking region was studied in order to help understand the relation to wear when machining different workpiece materials. SEM and topography characteristics were identified on worn surfaces of the coated tools. The resulting worn volume and surface characteristics were related to different wear mechanisms acting on the rake and flank sides of the tool. This work studies the shift in balance between crater and flank wear by identifying different wear mechanisms acting inside the same alumina coating layer when machining different grades of steel. Such work can be a good resource for FEM wear modeling, where good simulation models must take into consideration the physics lying behind the wear types acting on each side of the tool.

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Section: Discussion Of Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Shift of wear balance acting on CVD textured coatings and relation to workpiece materials

Bejjani

Odelros

Öhman

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

show abstract

“…Low thermal conduction rate and high ductility of stainless steels can lead to the serious built-up edge (BUE) phenomenon in the machining process [12]. High affinity of stainless steels to tools promotes adhesion to the cutting edge during high-speed machining conditions [13,14]. Cold weld of workpiece material and tool is formed when cut-out due to relative low environmental temperature [15].…”

Section: Introductionmentioning

confidence: 99%

Wear Mechanism of Cemented Carbide Tool in High Speed Milling of Stainless Steel

Liu

Zhou

Qian

et al. 2018

Chin. J. Mech. Eng.

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Adhesion of cutting tool and chip often occurs when machining stainless steels with cemented carbide tools. Wear mechanism of cemented carbide tool in high speed milling of stainless steel 0Cr13Ni4Mo was studied in this work. Machining tests on high speed milling of 0Cr13Ni4Mo with a cemented carbide tool are conducted. The cutting force and cutting temperature are measured. The wear pattern is recorded and analyzed by high-speed camera, scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). It is found that adhesive wear was the dominant wear pattern causing tool failure. The process and microcosmic mechanism of the tool's adhesive wear are analyzed and discussed based on the experimental results. It is shown that adhesive wear of the tool occurs due to the wear of coating, the affinity of elements Fe and Co, and the grinding of workpiece materials to the tool material. The process of adhesive wear includes both microcosmic elements diffusion and macroscopic cyclic process of adhesion, tearing and fracture.

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A Study on the High-Efficiency Cutting of Austenitic Stainless Steel Using an HfN-Type Coated Tool

Cited by 2 publications

References 13 publications

Shift of wear balance acting on CVD textured coatings and relation to workpiece materials

Shift of wear balance acting on CVD textured coatings and relation to workpiece materials

Wear Mechanism of Cemented Carbide Tool in High Speed Milling of Stainless Steel

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