Temperature Profile and Imaging Analysis of Laser Additive Manufacturing of Stainless Steel

Islam, Mahmud-Ul; Purtonen, Tuomas; Piili, Heidi; Salminen, Antti; Nyrhilä, Olli

doi:10.1016/j.phpro.2013.03.156

Cited by 137 publications

(52 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Table 2 shows example information types used for insitu monitoring and control of AM process parameters. Much research [25][26][27][28][29] on monitoring and controlling processes can be found, since these results are closely related to the mechanical properties and quality of resulting AM parts.…”

Section: Machine Datamentioning

confidence: 99%

“…Assurance/assessment Position -Nozzle position information Process -Deposit layer thickness -Powder feed rate -Source power monitoring -Scan speed and pattern -Gas flow parameters Temperature -Distribution on the workpiece [25,26] -Powder bed temperature -Powder feed temperature Melt pool -Melt pool size and shape [27] -Melt pool geometry -Solidification rate Sustainability issues -Energy consumption -Hazardous emissions…”

Section: Typementioning

confidence: 99%

See 1 more Smart Citation

Streamlining the additive manufacturing digital spectrum: A systems approach

Kim

Witherell

Lipman

et al. 2015

Additive Manufacturing

View full text Add to dashboard Cite

Section: Machine Datamentioning

confidence: 99%

Section: Typementioning

confidence: 99%

Streamlining the additive manufacturing digital spectrum: A systems approach

Kim

Witherell

Lipman

et al. 2015

Additive Manufacturing

View full text Add to dashboard Cite

“…Balling is a well-known phenomenon associated with the SLS process (14)(15)(16)(17)(18). Balling occurs when the molten material does not wet the underlying substrate.…”

Section: Electrochemical Performance Of Laser Sintered Patterned Elecmentioning

confidence: 99%

Additive Manufacturing for Solid Oxide Cell Electrode Fabrication

et al. 2015

View full text Add to dashboard Cite

Additive manufacturing can potentially offer a highly-defined electrode microstructure, as well as fast and reproducible electrode fabrication. Selective laser sintering is an additive manufacturing technique in which three-dimensional structures are created by bonding subsequent layers of powder using a laser. Although selective laser sintering can be applied to a wide range of materials, including metals and ceramics, the scientific and technical aspects of the manufacturing parameters and their impact on microstructural evolution during the process are not well understood. In the present study, a novel approach for electrode fabrication using selective laser sintering was evaluated by conducting a proof of concept study. A Ni-patterned fuel electrode was laser sintered on an yttria-stabilized zirconia substrate. The optimization process of laser parameters (laser sintering rate and laser power) and the electrochemical results of a full cell with a laser sintered electrode are presented. The challenges and prospects of using selective laser sintering for solid oxide cell fabrication are discussed.

show abstract

“…Surface quality (surface roughness, corrosion, and porosity properties) is also influenced by process parameters such as temperature profiles and densification ratios, among others [13][14][15][16]. However, the layer thickness can be reduced in order to improve the surface finish [17], but a smooth surface is also constrained by the balling phenomenon, which refers to the particles either not melting at all or joining into rather large droplets, which occurs during laser melting [18][19][20]. The balling phenomenon is related to the wettability of the powder; a poor wettability of the working powder increases the probability of developing this undesirable effect.…”

Section: Introductionmentioning

confidence: 99%

Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting

Segura-Cárdenas

Ramírez-Cedillo

Sandoval-Robles

et al. 2017

Metals

View full text Add to dashboard Cite

Selective laser melting (SLM) is emerging as a versatile process for fabricating different metal components with acceptable mechanical properties and geometrical accuracy. The process has been used in the manufacturing of several parts (e.g., aerospace or biomedical components), and offers the capability to tailor the performance of several surface and mechanical properties. In this work, permeability properties and surface roughness of stainless steel (SS316L) surfaces were evaluated through experimentation with three different laser scanning patterns (chessboard, meander, and stripe), and different sloping angles between the fabricated surface and the laser beam incident on the process. Results showed that for each scanning pattern, the roughness decreased as the sloping angle increased consistently in all experimental trials. Furthermore, in the case of the permeability evaluation, the manufactured surfaces showed changes in properties for each series of experiments performed with different scanning patterns. The chessboard pattern showed a change of 67 • to 107 • in contact angle, while the meander and stripe patterns showed a variation in contact angle in a range of 65 • to 85 • . The different scanning strategies in the SLM process resulted in an alternative method for surface enhancement with different hydrophobicity properties, valuable for designing the most appropriate permeability characteristics for specific applications.

show abstract

Temperature Profile and Imaging Analysis of Laser Additive Manufacturing of Stainless Steel

Cited by 137 publications

References 11 publications

Streamlining the additive manufacturing digital spectrum: A systems approach

Streamlining the additive manufacturing digital spectrum: A systems approach

Additive Manufacturing for Solid Oxide Cell Electrode Fabrication

Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting

Contact Info

Product

Resources

About