Publication detail

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

VOPAT, T. SAHUL, M. HARŠÁNI, M. VORTEL, O. ZLÁMAL, T.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

tool life; tool wear; edge preparation; cutting edge radius; surface finish; nanocomposite hard coating; coating-substrate adhesion; brushing; wet microblasting

Authors

VOPAT, T.; SAHUL, M.; HARŠÁNI, M.; VORTEL, O.; ZLÁMAL, T.

Released

5. 2. 2020

Publisher

MDPI

Location

BASEL

ISBN

2072-666X

Periodical

Micromachines

Year of study

11

Number

2

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://www.mdpi.com/2072-666X/11/2/166

BibTex

@article{BUT177833,
  author="VOPAT, T. and SAHUL, M. and HARŠÁNI, M. and VORTEL, O. and ZLÁMAL, T.",
  title="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",
  journal="Micromachines",
  year="2020",
  volume="11",
  number="2",
  pages="1--18",
  doi="10.3390/mi11020166",
  issn="2072-666X",
  url="https://www.mdpi.com/2072-666X/11/2/166"
}