Effect of Beam Energy on Weld Geometric Characteristics in Nd:YAG Laser Overlapping Spot Welding of Thin AISI 304 Stainless Steel Sheets
| Autor: | Miroslav Hrabovsky, Hana Chmelickova, Hana Lapšanská |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Laser scanning 0211 other engineering and technologies 02 engineering and technology Welding engineering.material law.invention Optics law Materials Chemistry Austenitic stainless steel Penetration depth Spot welding 021102 mining & metallurgy business.industry Metallurgy Metals and Alloys Laser beam welding 021001 nanoscience & nanotechnology Condensed Matter Physics Laser Mechanics of Materials Nd:YAG laser engineering 0210 nano-technology business |
| Zdroj: | Metallurgical and Materials Transactions B. 41:1108-1115 |
| ISSN: | 1543-1916 1073-5615 |
| DOI: | 10.1007/s11663-010-9399-8 |
| Popis: | Weld geometric characteristics in laser overlapping spot welding of 0.6-mm AISI 304 stainless steel sheets were investigated. A pulsed Nd:YAG laser with maximal average power of 150 W was used for welding experiments with different laser beam energies in the range of 3.5 J to 6.2 J, keeping all other processing parameters constant. The main objective of these experiments was to study the effect of energy changes and to identify the welding mode in dependency on the beam effective peak power density. Each weld surface and its cross section were analyzed using a laser scanning confocal microscope. The spot diameter on the specimen, weld width, and penetration depth were measured. Three-dimensional surface reconstruction was realized to describe the effect of energy changes on weld surface properties. |
| Databáze: | OpenAIRE |
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