scholarly journals Laser beam profiling: experimental study of its influence on single-track formation by selective laser melting

2015 ◽  
Vol 16 (7) ◽  
pp. 709 ◽  
Author(s):  
Ivan V. Zhirnov ◽  
Pavel A. Podrabinnik ◽  
Anna A. Okunkova ◽  
Andrey V. Gusarov
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Selective Laser Melting ◽  
Single Track ◽  
Laser Melting ◽  
Track Formation ◽  
Laser Beam Profiling

Single Track Formation during Selective Laser Melting of Ti-6Al-4V Alloy

2019 ◽  
Vol 946 ◽  
pp. 978-983 ◽  
Author(s):  
R.M. Baitimerov
Keyword(s):  
Selective Laser Melting ◽  
Process Parameters ◽  
Complex Shape ◽  
Powder Layer ◽  
Single Track ◽  
Laser Melting ◽  
Additive Manufacturing Technology ◽  
Geometrical Characteristics ◽  
Track Formation ◽  
Point Distance

Selective laser melting (SLM) is an additive manufacturing technology that allows to produce functional parts with extremely complex shape from metal powder feedstock. 240 single tracks with the length of 10 mm were fabricated using different SLM process parameters: laser power output, powder layer thickness, point distance and exposure time. Obtained single tracks were measured using optical microscopy. An influence of SLM process parameters on geometrical characteristics of obtained single tracks was investigated.

scholarly journals Effects of the powder morphology, size distribution, and characteristics on the single track formation in selective laser melting of H13 steel

2021 ◽  
Vol 15 (3) ◽  
pp. JAMDSM0035-JAMDSM0035
Author(s):  
Mitsugu YAMAGUCHI ◽  
Tatsuaki FURUMOTO ◽  
Yuuya TANABE ◽  
Shinnosuke YAMADA ◽  
Mototsugu OSAKI ◽  
...  
Keyword(s):  
Size Distribution ◽  
Selective Laser Melting ◽  
Single Track ◽  
Laser Melting ◽  
H13 Steel ◽  
Powder Morphology ◽  
Track Formation

Melt Pool and Single Track Formation in Selective Laser Sintering/Selective Laser Melting

2014 ◽  
Vol 933 ◽  
pp. 196-201 ◽  
Author(s):  
Mohd Rizal Alkahari ◽  
Tatsuaki Furumoto ◽  
Takashi Ueda ◽  
Akira Hosokawa
Keyword(s):  
Laser Beam ◽  
Layer Thickness ◽  
Laser Power ◽  
Selective Laser Sintering ◽  
Single Track ◽  
Laser Melting ◽  
Consolidation Process ◽  
Melt Pool ◽  
Track Formation ◽  
Scan Speed

Selective Laser Sintering/Selective Laser Melting (SLS/SLM) is one of Additive Manufacturing (AM) processes that utilize layer by layer powder deposition technique and successive laser beam irradiation based on Computer Aided Design (CAD) data. During laser irradiation on metal powders, melt pool was formed, which then solidified to consolidated structure. Therefore, melt pool is an important behavior that affects the final quality of track formation. The study investigates the melt pool behavior through visualization of the consolidation process during the single track formation on the first layer. In order to understand the transformation process of metal powder to consolidated structure and mechanism involved, high speed camera was used to monitor the process. Yb:fiber laser beam was irradiated on metal powder at maximum power of 150W. The laser processing parameters such as laser power, scan speed and layer thickness were varied in order to investigate their influence on the consolidation process. The result shows the size of melt pool increased with laser power and decreasing with increment in scan speed. Furthermore, with the increase of layer thickness, melt pool formation was unstable with chaotic movement. Significant amount of molten powder splattering was recorded from the melt pool. At high layer thickness also, the molten powder formed spherical shaped and the solidified molten powder failed to wet with the substrate.

Single track formation in selective laser melting of metal powders

2010 ◽  
Vol 210 (12) ◽  
pp. 1624-1631 ◽  
Author(s):  
I. Yadroitsev ◽  
A. Gusarov ◽  
I. Yadroitsava ◽  
I. Smurov
Keyword(s):  
Selective Laser Melting ◽  
Metal Powders ◽  
Single Track ◽  
Laser Melting ◽  
Track Formation

scholarly journals Influence of the Main Parameters of Selective Laser Melting on Stability of Single Track Formation when ‘Growing’ Parts from Copper Alloys

2019 ◽  
pp. 20-29 ◽  
Author(s):  
A.G. Grigoriyants ◽  
D.S. Kolchanov ◽  
A.A. Drenin ◽  
A.O. Denezhkin
Keyword(s):  
Selective Laser Melting ◽  
Copper Alloys ◽  
Melting Process ◽  
Scanning Speed ◽  
Single Track ◽  
Optimal Parameters ◽  
Laser Melting ◽  
Track Formation ◽  
The Stability ◽  
Lower Limits

Selective laser melting technology has the ability to directly produce finished parts, and is economically efficient for single or small batch production. Copper and its alloys are of great interest due to their high thermal and electrical conductivity. The influence of build process parameters, such as scanning speed and layer thickness on the stability of single track formation using a heat-resistant copper alloy PR-BrKh was investigated in this paper. The mechanism of single track formation was studied. As a result, patterns of formation of a stable single track were established, the upper and lower limits of the build parameters were determined. The results of the study provide a deeper understanding of the copper alloys selective laser melting process and may serve as a basis for determining the optimal parameters’ range for ‘growing’ solid structures.

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