Direct laser deposition of Cu alloy on forming tool surfaces—Process window and mechanical properties

CIRP Annals ◽  
2010 ◽  
Vol 59 (1) ◽  
pp. 211-214 ◽  
Author(s):  
M. Schmidt ◽  
R. Kolleck ◽  
A. Grimm ◽  
R. Veit ◽  
K. Bartkowiak
Keyword(s):  
Mechanical Properties ◽  
Laser Deposition ◽  
Process Window ◽  
Direct Laser Deposition ◽  
Cu Alloy ◽  
Direct Laser

scholarly journals Influence of the Feed Powder Composition in Mechanical Properties of AlN-Nano-Reinforced Aluminium Composites Coatings Deposited by Reactive Direct Laser Deposition

Metals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 926
Author(s):  
Ainhoa Riquelme ◽  
Pilar Rodrigo ◽  
María Dolores Escalera-Rodriguez ◽  
Pablo García-Fogeda ◽  
Joaquín Rams
Keyword(s):  
Mechanical Properties ◽  
Crystalline Structure ◽  
Composite Coatings ◽  
Laser Deposition ◽  
Aluminium Matrix ◽  
Pure Aluminium ◽  
Direct Laser Deposition ◽  
Powder Composition ◽  
Direct Laser ◽  
Nitridation Reaction

Aluminium matrix composite coatings reinforced with AlN nanopaticles have been manufactured by direct laser deposition on an AA6082 alloy substrate. The reinforcement of the composite has been generated by the direct nitridation reaction of the feed powder with the carrier gas (N2) heated by an HPDL beam during the fabrication of the coating. The coating obtained consists of nano-sized AlN particles in an aluminium matrix, and the crystalline structure of the obtained AlN depends on the characteristics of the powder used. In this work, the influence of the feed powder composition is studied by comparison among pure aluminium, Al12-Si alloy, and AA6061 alloy, on the formation of AlN and its crystalline structure. A correlation was established between the temperature distribution reached by the particles, their composition, and the nitridation reaction mechanisms. The effect of the reinforcement was evaluated by comparing the microstructure and mechanical properties (microhardness, nanoindentation) of the composite costing with non-reinforced Al coatings and uncoated AA6082. Al/AlN composite coatings with improved properties were achieved, reaching hardness values that were 65% higher than coatings without reinforcement.

The evolution of bainite and mechanical properties of direct laser deposition 12CrNi2 alloy steel at different laser power

2019 ◽  
Vol 742 ◽  
pp. 150-161 ◽  
Author(s):  
Yue Zhou ◽  
Suiyuan Chen ◽  
Xueting Chen ◽  
Tong Cui ◽  
Jing Liang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Alloy Steel ◽  
Laser Power ◽  
Laser Deposition ◽  
Direct Laser Deposition ◽  
Direct Laser

Research of Mechanical Properties of Cold Resistant Steel 09CrNi2MoCu after Direct Laser Deposition

2019 ◽  
Vol 822 ◽  
pp. 418-424 ◽  
Author(s):  
Y.A. Bistrova ◽  
E.A. Shirokina ◽  
R.V. Mendagaliev ◽  
M.O. Gushchina ◽  
A. Unt
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Fractional Composition ◽  
Mechanical Tests ◽  
Impact Testing ◽  
Laser Deposition ◽  
Resistant Steel ◽  
Direct Laser Deposition ◽  
Steel Material ◽  
Direct Laser

Review focuses on describing of mechanical properties of the components manufactured via direct laser depositionfrom cold resistant steel material. The results of tensile and impact testing are presented and microstructures of the fractures are shown. The process of laser deposition of cold-resistant steels, the formation of structures, as well as the mechanical properties of these samples are poorly understood. The results of tensile and impact tests are presented, and microstructures are shown. Mechanical tests for impact strength were carried out at a temperature of -40˚С, with different laser radiation powers. The results are given using the as-received powder, as well as used powder with a different mixing ratio, and the results are analyzed. As a result of the study, it was found that the fractional composition of the 09XH2MD alloy powder affects the mechanical characteristics of samples obtained by direct laser deposition. The effect of recycled powder on the mechanical properties of the obtained samples is given, the optimal laser deposition regimes are selected

Formation of Bead Shape, Structure and Mechanical Properties of Cold-Resistant High-Strength Steel Produced by Direct Laser Deposition Method

2020 ◽  
Vol 299 ◽  
pp. 345-350 ◽  
Author(s):  
G.G. Zadykyan ◽  
R.S. Korsmik ◽  
R.V. Mendagaliev ◽  
Gleb A. Turichin
Keyword(s):  
Mechanical Properties ◽  
High Strength Steel ◽  
High Strength ◽  
Laser Deposition ◽  
The Arctic ◽  
Deposition Method ◽  
Technological Parameters ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Shape Structure

The technology of direct laser deposition is the most promising for use in various industries. One of the most interesting industries for using this technology is shipbuilding. Due to its unique properties, cold-resistant steels are widely used in shipbuilding for brackets of mushroom propellers, stems, and also structures for work on the Arctic shelf. In this paper, the studies of the influence of technological parameters on the formation of the geometry and properties of products are represented. The technological parameters of the process of direct laser deposition parts from steel 0909CrNi2MoCu are determined.

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