Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints
In order to study the effects of different welding methods and different butt gaps on the microstructure and properties of welded joints of steel with unequal thickness, the medium carbon steel of 2 mm 50CrV and low carbon steel of 6 mm SPHE were used as test materials, and the welding was carried o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ad0dd1 |
| _version_ | 1797401522960596992 |
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| author | Sun Lina Lu You Jiang Junxiang |
| author_facet | Sun Lina Lu You Jiang Junxiang |
| author_sort | Sun Lina |
| collection | DOAJ |
| description | In order to study the effects of different welding methods and different butt gaps on the microstructure and properties of welded joints of steel with unequal thickness, the medium carbon steel of 2 mm 50CrV and low carbon steel of 6 mm SPHE were used as test materials, and the welding was carried out by single laser and laser wire filling welding. The results show that the laser wire filling welding can reduce the welding cracks, and with the increase of the butt gap, the melt height gradually decreases, and the weld morphology transitions from Y shape to H shape. With the increase of the butt gap, the weld defects form. The hardness of weld center decreases with the increase of butt gap. The average hardness of weld formed by laser welding alone is the highest, and the highest hardness of welded joint is located in the heat affected zone of 50CrV medium carbon steel. The tensile strength of welded joints first increases and then decreases with the increase of butt gaps. When the butt gap is 0.6 mm, the surface morphology is good and the tensile strength is the highest. The fracture position of the welding test is on the side of the 2 mm 50CrV medium carbon steel. |
| first_indexed | 2024-03-09T02:12:19Z |
| format | Article |
| id | doaj.art-04b754b8d05b4eaa9f9d09ca1b52db5e |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-09T02:12:19Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-04b754b8d05b4eaa9f9d09ca1b52db5e2023-12-07T08:08:00ZengIOP PublishingMaterials Research Express2053-15912023-01-01101212650410.1088/2053-1591/ad0dd1Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded jointsSun Lina0https://orcid.org/0000-0002-3101-2501Lu You1Jiang Junxiang2School of Mechanical and Civil Engineering, Jilin Agricultural Science and Technology University , Jilin 132101, People’s Republic of ChinaSchool of Mechanical and Civil Engineering, Jilin Agricultural Science and Technology University , Jilin 132101, People’s Republic of ChinaSchool of Mechanical and Civil Engineering, Jilin Agricultural Science and Technology University , Jilin 132101, People’s Republic of ChinaIn order to study the effects of different welding methods and different butt gaps on the microstructure and properties of welded joints of steel with unequal thickness, the medium carbon steel of 2 mm 50CrV and low carbon steel of 6 mm SPHE were used as test materials, and the welding was carried out by single laser and laser wire filling welding. The results show that the laser wire filling welding can reduce the welding cracks, and with the increase of the butt gap, the melt height gradually decreases, and the weld morphology transitions from Y shape to H shape. With the increase of the butt gap, the weld defects form. The hardness of weld center decreases with the increase of butt gap. The average hardness of weld formed by laser welding alone is the highest, and the highest hardness of welded joint is located in the heat affected zone of 50CrV medium carbon steel. The tensile strength of welded joints first increases and then decreases with the increase of butt gaps. When the butt gap is 0.6 mm, the surface morphology is good and the tensile strength is the highest. The fracture position of the welding test is on the side of the 2 mm 50CrV medium carbon steel.https://doi.org/10.1088/2053-1591/ad0dd1laser wire filler weldingbutt gapmechanical propertiesmicrostructure |
| spellingShingle | Sun Lina Lu You Jiang Junxiang Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints Materials Research Express laser wire filler welding butt gap mechanical properties microstructure |
| title | Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| title_full | Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| title_fullStr | Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| title_full_unstemmed | Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| title_short | Effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| title_sort | effect of laser welding and laser wire filling on forming and properties of dissimilar steel welded joints |
| topic | laser wire filler welding butt gap mechanical properties microstructure |
| url | https://doi.org/10.1088/2053-1591/ad0dd1 |
| work_keys_str_mv | AT sunlina effectoflaserweldingandlaserwirefillingonformingandpropertiesofdissimilarsteelweldedjoints AT luyou effectoflaserweldingandlaserwirefillingonformingandpropertiesofdissimilarsteelweldedjoints AT jiangjunxiang effectoflaserweldingandlaserwirefillingonformingandpropertiesofdissimilarsteelweldedjoints |