Study on Mechanical Properties of Austenitic Stainless Steel Welded by Laser and TIG

Jung, Sung-Min; Park, In-Duck; Nam, Ki-Woo; Choi, Byung-Cheol

doi:10.9726/kspse.2019.23.2.027

Cited by 1 publication

(1 citation statement)

References 10 publications

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“…The results from the tensile strength test showed approximately 624 MPs, which was slightly higher than 480 MPa of conventional casting product 11) . It was determined that such results were due to the fact that DED process involved repeated deposition, layer by layer, and had a relatively smaller melting pool than conventional casting products, and as a result, the mixture area of STS304L (austenite stainless steel) ferrous alloy (dilution) cooled faster, which in turn improved tensile strength due to formation of micro grains 12) .…”

Section: Results and Discussion Of Experiments According To Tensile Strength Partmentioning

confidence: 99%

Optimization of Direct Energy Deposition of 304L Stainless Steel through Laser Process Parameters

신¹,

권²,

김³

et al. 2021

Journal of Welding and Joining

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The quality of metal components manufactured by laser-based additive manufacturing technologies is governed by the process parameters. Moreover, the process parameters differ depending on the material used. In particular, direct energy deposition (DED) technology is vulnerable to the control of external environmental variables, and there are many process variables, such as powder characteristics and laser parameters, and thus many tests are required to determine the optimal parameters. In this study, an experiment was conducted to derive the conformity criterion of the DED process for metal powder (STS304L). First, the effects of laser energy output, laser header moving speed, powder feed rate, and gas feed rate on the DED process were studied. The experimental results showed that the deposition height decreased as the laser header moved faster and that the dilution ratio and the width of the heat-affected zone depended on the laser power and powder feed rate. Specimens were printed based on the process parameter values determined in the experiment, and tensile tests were conducted to analyze their mechanical performance.

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Section: Results and Discussion Of Experiments According To Tensile Strength Partmentioning

confidence: 99%

Optimization of Direct Energy Deposition of 304L Stainless Steel through Laser Process Parameters

신¹,

권²,

김³

et al. 2021

Journal of Welding and Joining

View full text Add to dashboard Cite

show abstract

Study on Mechanical Properties of Austenitic Stainless Steel Welded by Laser and TIG

Cited by 1 publication

References 10 publications

Optimization of Direct Energy Deposition of 304L Stainless Steel through Laser Process Parameters

Optimization of Direct Energy Deposition of 304L Stainless Steel through Laser Process Parameters

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