Surface quality of AZ91D magnesium alloy after precision milling with coated tools

Korpysa, Jarosław (author), Kuczmaszewski, Jozef (author), Zagorski, Ireneusz (author)

This study investigates the surface quality of AZ91D magnesium alloy specimens after precision milling. The milling was conducted with the use of TiB2- and TiAlN-coated carbide end mills. The following variables were used in the milling process: cutting speed vc, feed per tooth fz and axial depth of cut ap. The surface quality was analysed based on surface roughness parameters and Abbott-Firestone curves. The results showed that the surface quality after machining depended on the tool coating type and applied machining parameters; the only exception was the axial depth of cut because changes in its value did not have any significant effect on the obtained surface quality. After precision milling, AZ91D specimens were characterized by very low surface roughness parameters. The impact of machining conditions was also evaluated with ANOVA analysis, which confirmed the significant effect of cutting speed and feed per tooth. It also indicated the dependence of the roughness parameters on the tool coating type. The tool coating type and machining conditions did not have any significant effect on the Abbott-Firestone curves. Despite the changes applied, the shape of the curves remained similar. The obtained results provide both theoretical and practical knowledge about the achievable surface roughness of AZ91D magnesium alloy specimens after precision milling.

• Language: English
• Keywords: precision milling, surface quality, Abbott-Firestone curve, ANOVA, coated tools
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: Str. 497-508
• Numbering: Vol. 69, no. 11/12
• PID: 20.500.12556/RUL-154134
• UDC: 621.7+621.9
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2023.651
• COBISS.SI-ID: 182620931
• Publication date in RUL: 26.01.2024

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.] = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Kakovost površin magnezijeve zlitine AZ91D po natančnem rezkanju z oslojenimi orodji
• Keywords: natančno rezkanje, kakovost površin, krivulja Abbott-Firestone, ANOVA, oslojena orodja

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: Mechanical Engineering Discipline Fund of Lublin University of Technology
• Project number: FD-20/IM-5/060