Publication detail

Quantitave Assessment of PVD Coatings and Cooling Fluids on the Drilling Performance and Wear of HSS Drills when Machining of Hardened Steel

PÍŠKA, M.

Czech title

Testování řezivosti PVD povlaků a řezných kapalin při vrtání a opotřebení HSS vrtáků pro obrábění zušlechtěné oceli

English title

Quantitave Assessment of PVD Coatings and Cooling Fluids on the Drilling Performance and Wear of HSS Drills when Machining of Hardened Steel

Type

conference paper

Language

en

Original abstract

Machining of hardened steel is a very common technological operation today. The new approaches for higher efficiency are based on the PVD coatings or a use of cooling fluids with efficient EP/lubricating additives. Drill coatings can help to increase wear resistance or to alter contact conditions in a such way that wear effect is reduced. In this study, low-alloyed hardened steels (Rm=1200 MPa) were drilled with TiN, TiCN, TiAlN and TiN/Movic(R) coatings applied on HSS drills. Specific drilling energy and coefficient of friction were calculated to quantify the wear process and functioning of the material interface in the tool life.

Czech abstract

Obrábění zušlchtěné oceli je dnes obvyklou technologickou operací. Nové pokroky se dosahují s PVD povlaky nebo použití – řezných kapalin s EP přísadami. Povlaky pomáhají zvyšovat odolnost proti opotřebení nebo mění podmínky na kontaktních plochách tak, že dochází k redukci opotřebení. V této studii byly testovány nízkolegované zušlechtěné oceli (Rm=1200 MPa), které byly vrtány HSS vrtáky s povlaky TiN, TiCN, TiAlN s TiN/Movic(R). Jako parametry řezivosti se využívala kriteria měrné energie vrtání a součinitel tření na rozhraní tříska-nástroj.

English abstract

Machining of hardened steel is a very common technological operation today. The new approaches for higher efficiency are based on the PVD coatings or a use of cooling fluids with efficient EP/lubricating additives. Drill coatings can help to increase wear resistance or to alter contact conditions in a such way that wear effect is reduced. In this study, low-alloyed hardened steels (Rm=1200 MPa) were drilled with TiN, TiCN, TiAlN and TiN/Movic(R) coatings applied on HSS drills. Specific drilling energy and coefficient of friction were calculated to quantify the wear process and functioning of the material interface in the tool life.

Keywords in English

hardened steel, drilling, coating, performance

RIV year

2003

Released

14.11.2002

Publisher

Dom techniky ZSVTS Bratislava s.r.o.

Location

Bratislava

ISBN

80-233-0476-3

Book

Intertribo 2002

Edition number

1

Pages from–to

59–64

Pages count

6

BIBTEX


@inproceedings{BUT7426,
  author="Miroslav {Píška},
  title="Quantitave Assessment of PVD Coatings and Cooling Fluids on the Drilling Performance and Wear of HSS Drills when Machining of Hardened Steel",
  booktitle="Intertribo 2002",
  year="2002",
  month="November",
  pages="59--64",
  publisher="Dom techniky ZSVTS Bratislava s.r.o.",
  address="Bratislava",
  isbn="80-233-0476-3"
}