Effect of Process Parameters on Powder Bed Fusion Maraging Steel 300: A Review

Rao, Bheemavarapu Subba; Rao, Thella Babu

doi:10.1007/s40516-022-00182-6

Cited by 16 publications

(3 citation statements)

References 147 publications

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“…The technique is needs for each layer as seen in figure 2. In LPBF technology, a small molten pool is formed by laser interaction with metallic powder at a depth of 0.16-0.63 μm a length of 0.9-1.4 μm, and a width of 0.12-0.38 μm depending on the process parameters [43][44][45][46]. The cooling rate based on laser movement also occurs at a speed of 103-108 mm s −1 , resulting in differences in chemical and physical properties.…”

Section: Laser Powder Bed Fusion Processmentioning

confidence: 99%

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

2024

Phys. Scr.

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The laser powder bed fusion LPBF method in additive manufacturing for metals have proven to produce a final product with higher relative density, when compare to other metal additive manufacturing processes like WAAM, DED and it takes less time even for complex designs. Despite the use of many metal-based raw materials in the LPBF method for production of products. Maraging steel (martensitic steel) is used in aeronautical and aircraft applications in view of its advantages including low weight, high strength, long-term corrosion resistance, low cost, availability, and recyclability. A research gap concerns the selection of design, dimension, accuracy, process parameters according to different grades, and unawareness of various maraging steels other than specific maraging steels. In this comprehensive review, the research paper provides information about on LPBF maraging steel grades, their process parameters and defects, microstructure characteristics, heat treatments, and the resulting mechanical characteristics changes. In addition, detailed information about the aging properties, fatigue, residual and future scope of different maraging steel grades in LPBF for various applications are discussed.

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Section: Laser Powder Bed Fusion Processmentioning

confidence: 99%

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

2024

Phys. Scr.

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“…Process parameters and powder characteristics likely underlie these observed differences. The solidification behaviour of the melt pool is strongly influenced by factors like laser power, scanning strategy, and layer thickness, all of which can impact surface roughness [51][52][53][54]. Additionally, variations in powder particle morphology (noted in the Section 3.1.1) could contribute.…”

Section: Surface Roughnessmentioning

confidence: 99%

“…Understanding and controlling surface roughness is essential in L-PBF, particularly for industries with strict surface quality requirements. Surface defects from roughness act as stress concentrators, promoting fatigue crack initiation, reducing die lifetime, and increasing costly downtime for replacement [52,55]. Optimising L-PBF process parameters and ensuring powder quality is crucial for achieving the desired surface characteristics, enhancing fatigue resistance, and ensuring the suitability of parts for their intended applications.…”

Section: Surface Roughnessmentioning

confidence: 99%

Benchmarking L-PBF Systems for Die Production: Powder, Dimensional, Surface, Microstructural and Mechanical Characterisation

Costa,

Sequeiros,

Santos

et al. 2024

Metals

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While conventional die manufacturing techniques often lead to limitations in production speed and design intricacy due to labour-intensive procedures like machining and casting, Additive Manufacturing (AM) emerges as a key player offering substantial potential for cost reduction and process improvement in mass production. This study benchmarks four leading Laser Powder Bed Fusion (L-PBF) systems for producing maraging steel (EN 1.2709) dies. Despite the shared material and technology, variations in dimensional accuracy, surface finish, and microstructure were observed among the maraging steel parts. SEM/EDS, EBSD, hardness testing, and dimensional analysis revealed system-specific performance differences. Additionally, select parts underwent heat treatment and tensile testing, demonstrating the impact of post-processing on mechanical properties. These results offer valuable guidance for industrial stakeholders considering AM, highlighting the importance of supplier selection and process optimisation for achieving consistent part quality and unlocking the full potential of AM technologies.

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A novel synchronous scanning strategy in laser powder bed fusion and effect on mechanical properties of industrial gears

Çalışkan

2023

Int J Adv Manuf Technol

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Effect of Process Parameters on Powder Bed Fusion Maraging Steel 300: A Review

Cited by 16 publications

References 147 publications

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

Benchmarking L-PBF Systems for Die Production: Powder, Dimensional, Surface, Microstructural and Mechanical Characterisation

A novel synchronous scanning strategy in laser powder bed fusion and effect on mechanical properties of industrial gears

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