Laser Welding and Remelting of DC05 Low Carbon Steel
Laser welded joint of ferritic low carbon steel DC05 was manufactured as Tailored Blank and examined by non-destructive visual testing and destructive testing by macro- and microscopic examination and hardness measurements. The tensile strength of the welded joint was 280 MPa and corresponds to the...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2025-06-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/135524/AMM-2025-2-18-Krawczyk.pdf |
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| Summary: | Laser welded joint of ferritic low carbon steel DC05 was manufactured as Tailored Blank and examined by non-destructive visual testing and destructive testing by macro- and microscopic examination and hardness measurements. The tensile strength of the welded joint was 280 MPa and corresponds to the tensile strength of the base material. Microscopic observations of thinner plate revealed heat affected zone with coarse grain, in contrast to the thicker plate where coarse grain was not observed. Detailed analysis of laser remelted area on plates after various cold deformation (1%, 4.15% and 12.5%) reveals a significant influence of the plate state on the occurrence of grain growth. The increase in the width of the coarse-grained zone after 12.5% deformation increases by approximately 60% compared to the undeformed state, regardless of the travel speed. |
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| ISSN: | 2300-1909 |