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

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...

Full description

Bibliographic Details
Main Authors: Tomáš Vopát, Martin Sahul, Marián Haršáni, Ondřej Vortel, Tomáš Zlámal
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/11/2/166
_version_ 1818850790972850176
author Tomáš Vopát
Martin Sahul
Marián Haršáni
Ondřej Vortel
Tomáš Zlámal
author_facet Tomáš Vopát
Martin Sahul
Marián Haršáni
Ondřej Vortel
Tomáš Zlámal
author_sort Tomáš Vopát
collection DOAJ
description 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.
first_indexed 2024-12-19T06:54:44Z
format Article
id doaj.art-cc24e3906e9c44399331257928403397
institution Directory Open Access Journal
issn 2072-666X
language English
last_indexed 2024-12-19T06:54:44Z
publishDate 2020-02-01
publisher MDPI AG
record_format Article
series Micromachines
spelling doaj.art-cc24e3906e9c443993312579284033972022-12-21T20:31:35ZengMDPI AGMicromachines2072-666X2020-02-0111216610.3390/mi11020166mi11020166The Tool Life and Coating-Substrate Adhesion of AlCrSiN-Coated Carbide Cutting Tools Prepared by LARC with Respect to the Edge Preparation and Surface FinishingTomáš Vopát0Martin Sahul1Marián Haršáni2Ondřej Vortel3Tomáš Zlámal4Faculty of Materials Science and Technology in Trnava, Institute of Production Technologies, Slovak University of Technology in Bratislava, Jána Bottu 25, 917 24 Trnava, SlovakiaFaculty of Materials Science and Technology in Trnava, Institute of Material Science, Slovak University of Technology in Bratislava, Jána Bottu 25, 917 24 Trnava, SlovakiaFaculty of Materials Science and Technology in Trnava, Institute of Material Science, Slovak University of Technology in Bratislava, Jána Bottu 25, 917 24 Trnava, SlovakiaFaculty of Mechanical Engineering, Department of Machining, Assembly and Engineering Metrology, Technical Univesity of Ostrava, 17. listopadu 15, 708 33 Ostrava-Poruba, Czech RepublicFaculty of Mechanical Engineering, Department of Machining Technology, Technická 2, Brno University of Technology, Královo Pole, 616 69 Brno, Czech RepublicNanocomposite 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.https://www.mdpi.com/2072-666X/11/2/166tool lifetool wearedge preparationcutting edge radiussurface finishnanocomposite hard coatingcoating-substrate adhesionbrushingwet microblasting
spellingShingle Tomáš Vopát
Martin Sahul
Marián Haršáni
Ondřej Vortel
Tomáš Zlámal
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
Micromachines
tool life
tool wear
edge preparation
cutting edge radius
surface finish
nanocomposite hard coating
coating-substrate adhesion
brushing
wet microblasting
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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_short 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
title_sort tool life and coating substrate adhesion of alcrsin coated carbide cutting tools prepared by larc with respect to the edge preparation and surface finishing
topic tool life
tool wear
edge preparation
cutting edge radius
surface finish
nanocomposite hard coating
coating-substrate adhesion
brushing
wet microblasting
url https://www.mdpi.com/2072-666X/11/2/166
work_keys_str_mv AT tomasvopat thetoollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT martinsahul thetoollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT marianharsani thetoollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT ondrejvortel thetoollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT tomaszlamal thetoollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT tomasvopat toollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT martinsahul toollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT marianharsani toollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT ondrejvortel toollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing
AT tomaszlamal toollifeandcoatingsubstrateadhesionofalcrsincoatedcarbidecuttingtoolspreparedbylarcwithrespecttotheedgepreparationandsurfacefinishing