On the influence of batch-to-batch microstructural variations on tool wear when machining C38 micro-alloyed steel
Artikel i vetenskaplig tidskrift, 2025

Sustainable machining in micro-alloyed carbon steels necessitates a thorough understanding of microstructural variations and their subsequent influence on the machinability of different batches. This research investigates the machinability variation between two batches of a modified pearlitic-ferritic C38 micro-alloyed steel with a similar nominal chemical composition, through correlation of their tool wear responses at different cutting conditions to discrepancies in the microstructure and non-metallic inclusions between both batches. One batch of steel exhibits enhanced machinability for all investigated cutting conditions, showing remarkably different levels of wear development under similar cutting conditions and spiral cutting lengths. The different wear responses are then compared in association with the thermo-mechanical loads and microstructural discrepancies, where the less machinable batch is determined to have a lower ferritic volume fraction, higher hardness, and more abrasive nitrides than the other batch.

micro-alloyed steel

inclusion

Tool wear

machinability

Författare

Charlie Salame

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Amir Malakizadi

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Uta Klement

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Wear

0043-1648 (ISSN)

Vol. 562-563 205632

Ett ramverk för fysikbaserad uppskattning av verktygsförslitning i skärande bearbetning

VINNOVA (2020-05179), 2021-03-22 -- 2024-11-20.

Ämneskategorier

Produktionsteknik, arbetsvetenskap och ergonomi

Materialteknik

Bearbetnings-, yt- och fogningsteknik

Metallurgi och metalliska material

Styrkeområden

Produktion

Materialvetenskap

Infrastruktur

Chalmers materialanalyslaboratorium

DOI

10.1016/j.wear.2024.205632

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Senast uppdaterat

2024-11-28