Ispitivanje trošenja spiralnih svrdala prevučenih PACVD prevlkama

master's thesis

• Title (english): Testing the wear of spiral drill bits coated with PACVD coatings
• Author: Ante Matić
• Mentor: Darko Landek (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2018-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U radu je provedeno ispitivanje otpornosti na trošenje komercijalno dobavljivih neprevučenih svrdala prevučenih PVD TiN prevlakom te dvije skupine svrdala prevučenih prevlakama PACVD. Prevlačenje PACVD provedeno je prevlakama TiN/TiCN i TiN/TiBN. Na prevučenim svrdlima provedena su ispitivanja debljina prevlake. Ispitivanje otpornosti na trošenje provedeno je bušenjem aluminijskog profila pri čemu su praćeni temperatura, snaga i vrijeme bušenja. Prevučena svrdla pokazala su značajno bolju otpornost na trošenje u odnosu na ne prevučena svrdla. najbolju otpornost na trošenje pokazala je prevlaka PVD TiN, a potom prevlaka PACVD TiN/TiBN.

Abstract (english)

In this paper we have conducted a test of wear resistance of commercially available drill bits coated with PVD TiN coating and two groups of drill bits coated with PACVD process. PACVD coating was performed with TiN/TiCN and TiN/TiBN coatings. Coating thicknesses were determined on coated drill bits. Examination of wear resistance is carried out by drilling an aluminum profile with temperature, electricity power and drilling time followed. The coated drill bits showed significantly better wear resistance than the non-coated drill bits. The best resistance to wear was obtained with the coating PVD TiN and the second in wear resistance was PACVD TiN/TiBN coating.

• Keywords: brzorezni čelik; otpornost na trošenje; prevlačenje; TiN; TiN/TiCN; TiN/TiBN
• Keywords (english): high speed steel; wear resistance; coating process; TiN; TiN/TiCN; TiN/TiBN
• Language: croatian
• URN:NBN: urn:nbn:hr:235:570232
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 22:46:10