Effect of Substrate Bias and Coating Thickness on the Properties of nc-AlCrN/a-Si&lt;sub&gt;x&lt;/sub&gt;N&lt;sub&gt;y&lt;/sub&gt; Hard Coating and Determination of Cutting Parameters

Vopát, Tomáš; Haršáni, Marián; Kuruc, Marcel; Šimna, Vladimír; Zaujec, Rudolf; Peterka, Jozef; Čaplovič, Ľubomír

doi:10.4028/www.scientific.net/ssp.261.229

Cited by 2 publications

(10 citation statements)

References 12 publications

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“…The coating thickness was 4 ± 0.10 µm. A summary of the deposition parameters is listed in Table 1 [38]. Table 1.…”

Section: Coating Deposition Conditionsmentioning

confidence: 99%

“…The selection of the bias voltage interval can be explained by the fact that these values belonged to the most often used values of bias voltage in the industry, as well as the substrate temperature, which was kept at 470 • C. The coating thickness was 4 ± 0.10 µm. A summary of the deposition parameters is listed in Table 1 [38]. Table 1.…”

Section: Measurement Of the Coating Thickness Nanohardness And Coatmentioning

confidence: 99%

“…Table 1. Summary of deposition parameters for AlCrSiN coating in the preliminary experiment [38]. Nanohardness measurements were performed on as-deposited coatings using the Anton Paar NHT 2 nanoindentation device, using the Oliver & Pharr method with the Berkowich diamond indentor.…”

Section: Measurement Of the Coating Thickness Nanohardness And Coatmentioning

confidence: 99%

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The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface Finishing

et al. 2020

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Nanocomposite AlCrSiN hard coatings were deposited on the cemented carbide substrates with a negative substrate bias voltage within the range of −80 to −120 V using the cathodic arc evaporation system. The effect of variation in the bias voltage on the coating-substrate adhesion and nanohardness was investigated. It was clear that if bias voltage increased, nanohardness increased in the range from −80 V to −120 V. The coating deposited at the bias voltage of −120 V had the highest nanohardness (37.7 ± 1.5 GPa). The samples were prepared by brushing and wet microblasting to finish a surface and prepare the required cutting edge radii for the tool life cutting tests and the coating adhesion observation. The indents after the static Mercedes indentation test were studied by scanning the electron microscope to evaluate the coating-substrate adhesion. The longer time of edge preparation with surface finishing led to a slight deterioration in the adhesion strength of the coating to the substrate. The tool wear of cemented carbide turning inserts was studied on the turning centre during the tool life cutting test. The tested workpiece material was austenitic stainless steel. The cemented carbide turning inserts with larger cutting edge radius were worn out faster during the machining. Meanwhile, the tool life increased when the cutting edge radius was smaller.

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“…The coating thickness was 4 ± 0.10 µm. A summary of the deposition parameters is listed in Table 1 [38]. Table 1.…”

Section: Coating Deposition Conditionsmentioning

confidence: 99%

Section: Measurement Of the Coating Thickness Nanohardness And Coatmentioning

confidence: 99%

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The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface Finishing

et al. 2020

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“…Experimental investigation of cutting parameters for this research in detail is published in [22]. Tool wear of coated cemented carbide turning insert was measured on Dino-Lite digital microscope.…”

Section: Tool Life Test and Cutting Parametersmentioning

confidence: 99%

“…Varying the micro geometry does not lead to a variation of the edge chipping. Influence of used edge preparation method on the coating adhesion to substrate is discussed in [22].…”

Section: Introductionmentioning

confidence: 99%

Cutting Edge Microgeometry and Preparation Methods

Vopát¹,

Kuruc²,

Šimna³

et al. 2017

DAAAM Proceedings

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The paper deals with the issue of cutting edge preparation and tool treatment before the coating and their influence on the tool life of coated cutting tools. The aim was to examine the influence of cutting edge radius sizes on the tool life of cemented carbide turning inserts. Theoretical analysis was focussed on the issue of cutting edge microgeometry, discussing the classification and importance of cutting edge microgeometry. The most famous and used edge preparation methods are summarized in article along with the results of current research of famous tool companies and institutions. In this article, the tool lives of cemented carbide turning inserts which were prepared by several methods were compared. Cemented carbide turning inserts were deposited by AlCrSiN nanocomposite hard coating. Long-term tool live tests were carried out on DMG CTX alpha 500 turning centre. The tool wear of cemented carbide turning inserts was measured on Dino-Lite digital microscope during the turning. The tool lives of prepared cemented carbide turning inserts with required cutting edge radius and unprepared ones were compared. These results were investigated in the process of machining of austenitic stainless steel material X6CrNiTi18-10 by DIN EN (AISI 321), which shows higher strain hardening tendency.

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Effect of Substrate Bias and Coating Thickness on the Properties of nc-AlCrN/a-Si<sub>x</sub>N<sub>y</sub> Hard Coating and Determination of Cutting Parameters

Cited by 2 publications

References 12 publications

The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface Finishing

The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface Finishing

Cutting Edge Microgeometry and Preparation Methods

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