Laser Additive Manufacturing of High-Performance Metallic Aerospace Components

Dongdong, 顾冬冬 Gu; Hongmei, 张红梅 Zhang; Hongyu, 陈洪宇 Chen; Han, 张晗 Zhang; Lixia, 席丽霞 Xi

doi:10.3788/cjl202047.0500002

Cited by 50 publications

(8 citation statements)

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“…Among aluminum alloys, AlSi alloys demonstrate better LPBF formability due to their good casting and welding properties [ 72 ]. The main factors affecting LPBF aluminum alloy formability are laser energy density [ 73 ], scanning and printing strategies [ 74 , 75 ], and heat treatment processes [ 76 , 77 ].…”

Section: Research Status Of Lpbf Process For Aluminum Alloymentioning

confidence: 99%

“…The main factors affecting LPBF aluminum alloy formability are laser energy density [ 73 ], scanning and printing strategies [ 74 , 75 ], and heat treatment processes [ 76 , 77 ]. When the laser energy density increases from 150 J/m to 200 J/m, the density of the LPBF-printed AlSi7Mg alloy component rises from 94.6% to 99.6% [ 72 ]. However, further increasing the laser energy density will lead to increased evaporation of low melting point elements such as aluminum and magnesium, making it difficult for bubbles to escape and causing a decrease in component density.…”

Section: Research Status Of Lpbf Process For Aluminum Alloymentioning

confidence: 99%

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A Review on Traditional Processes and Laser Powder Bed Fusion of Aluminum Alloy Microstructures, Mechanical Properties, Costs, and Applications

Wang,

Zhang,

et al. 2024

Materials

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Due to its lightweight, high strength, good machinability, and low cost, aluminum alloy has been widely used in fields such as aerospace, automotive, electronics, and construction. Traditional manufacturing processes for aluminum alloys often suffer from low material utilization, complex procedures, and long manufacturing cycles. Therefore, more and more scholars are turning their attention to the laser powder bed fusion (LPBF) process for aluminum alloys, which has the advantages of high material utilization, good formability for complex structures, and short manufacturing cycles. However, the widespread promotion and application of LPBF aluminum alloys still face challenges. The excellent printable ability, favorable mechanical performance, and low manufacturing cost are the main factors affecting the applicability of the LPBF process for aluminum alloys. This paper reviews the research status of traditional aluminum alloy processing and LPBF aluminum alloy and makes a comparison from various aspects such as microstructures, mechanical properties, application scenarios, and manufacturing costs. At present, the LPBF manufacturing cost for aluminum alloys is 2–120 times higher than that of traditional manufacturing methods, with the discrepancy depending on the complexity of the part. Therefore, it is necessary to promote the further development and application of aluminum alloy 3D printing technology from three aspects: the development of aluminum matrix composite materials reinforced with nanoceramic particles, the development of micro-alloyed aluminum alloy powders specially designed for LPBF, and the development of new technologies and equipment to reduce the manufacturing cost of LPBF aluminum alloy.

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Section: Research Status Of Lpbf Process For Aluminum Alloymentioning

confidence: 99%

Section: Research Status Of Lpbf Process For Aluminum Alloymentioning

confidence: 99%

A Review on Traditional Processes and Laser Powder Bed Fusion of Aluminum Alloy Microstructures, Mechanical Properties, Costs, and Applications

Wang,

Zhang,

et al. 2024

Materials

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“…Laser additive manufacturing uses high-energy laser beam as a heat source to melt powder or wire and solidify it layer by layer to form three-dimensional solid parts with a certain structure [1]. Laser additive manufacturing can realize the integral forming of parts, and is not limited by the type of materials and the structure size of parts, and has advantages such as low cost, high material utilization rate, and short product delivery cycle [1][2]. It can be used in the design and manufacture of complex structural parts, surface repair of damaged parts, surface modification of parts and other aspects.…”

Section: Introductionmentioning

confidence: 99%

Study on surface thermal deformation of laser cladding screw based on path planning

Yang,

Wang,

Wang

et al. 2023

International Conference on Electronic Materials and Information Engineering (EMIE 2023)

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“…This process results in the solidification of the melted powder, thereby producing a formed part [1][2][3]. L-PBF technology is extensively employed in the aerospace, defense, and biomedical sectors, owing to its rapid forming speed, absence of tooling requirements, net forming capability, high precision, high density, and the ability to fabricate intricate components [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of L-PBF Scanning Strategy and Sloping Angle on the Process Properties of TC11 Titanium Alloy

Chen

Zheng

et al. 2023

Metals

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TC11 titanium alloy is widely used in aerospace. To investigate the production of TC11 titanium alloy parts of high quality and performance, this paper adopts the Laser powder bed fusion (L-PBF) technique to prepare TC11 alloy specimens. We analyze in detail the effects of scanning strategy and forming angle on the forming quality and performance of TC11 alloy through a combination of theory and experiment. The results show that the upper surface quality of the strip-scanned molded parts is the highest, and the upper surface quality is better than that of the side surface under different scanning strategies. The fusion channel lap and surface adhesion powder were the main factors affecting the surface roughness. With increases in the forming angle, the surface roughness of the overhanging surface gradually decreases and the hardness gradually increases. The surface quality and hardness of the specimen are optimal when the forming angle is 90°. The research results provide the theoretical basis and technical support for L-PBF forming of TC11 titanium alloy parts.

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Laser Additive Manufacturing of High-Performance Metallic Aerospace Components

Cited by 50 publications

References 0 publications

A Review on Traditional Processes and Laser Powder Bed Fusion of Aluminum Alloy Microstructures, Mechanical Properties, Costs, and Applications

A Review on Traditional Processes and Laser Powder Bed Fusion of Aluminum Alloy Microstructures, Mechanical Properties, Costs, and Applications

Study on surface thermal deformation of laser cladding screw based on path planning

Effects of L-PBF Scanning Strategy and Sloping Angle on the Process Properties of TC11 Titanium Alloy

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