An investigation into the grindability of additively manufactured 42CrMo4 steel

Hoier, Philipp (author), Kareepadath Santhosh, Deepa (author), Hryha, Eduard (author), Krajnik, Peter (author)

This study investigates post-processing of additively manufactured (AM) low-alloy 42CrMo4 steel (AISI 4140) produced by powder bed fusion – laser beam (PBF-LB). While the PBF-LB process produces tempered martensite by in-situ heat-treatment, resulting in superior mechanical properties, finishing by grinding remains critical for use in precision components such as automotive gears. The grindability of the AM material is compared to conventionally produced steel and reveals comparable results to most of the grindability criteria tested. However, higher wheel wear is observed when grinding the AM material. This is likely due to the lack of machinability-enhancing inclusion treatment common in conventional steelmaking.

• Language: English
• Keywords: grinding, grindability, additive manufacturing
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: Str. 257-260
• Numbering: Vol. 73, iss. 1
• PID: 20.500.12556/RUL-160214
• UDC: 621.926:621.742.53
• ISSN on article: 0007-8506
• DOI: 10.1016/j.cirp.2024.04.039
• COBISS.SI-ID: 198954755
• Publication date in RUL: 23.08.2024

Record is a part of a journal

• Title: CIRP annals
• Shortened title: CIRP ann.
• Publisher: Technische Rundschau, Hallwag Verlag, Colibri, Elsevier
• ISSN: 0007-8506
• COBISS.SI-ID: 170267

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
• Keywords: brušenje, brusilnost, aditivna proizvodnja

Projects

• Funder: Other - Other funder or multiple funders