TY - JOUR

T1 - Additive manufacturing of multi-material parts

T2 - Design guidelines for manufacturing of 316L/CuCrZr in laser powder bed fusion

AU - Meyer, Ina

AU - Oel, Marcus

AU - Ehlers, Tobias

AU - Lachmayer, Roland

N1 - Funding Information: The project “Computer tomograph for optomechatronic systems” was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project number 432176896. Funding Information: This research has been funded by the Ministry for Science and Culture of Lower Saxony (MWK) – School for Additive Manufacturing SAM. Funding Information: The project “Major Research Instrumentation for integration of efficient effects in multi-material structural components” was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project number 445707542.

PY - 2023/8

Y1 - 2023/8

N2 - Additive manufacturing (AM) can be used to produce multi-material parts in which the material can be varied voxel-wise in all three spatial directions. This means that the paradigm of the homogeneous material can be abandoned and local effects such as heat conduction or damping can be selectively adjusted in the part. Recently, continuous development of machine technology has allowed the production of multi-metal materials in laser powder bed fusion (PBF-LB/MM). Compared to other additive manufacturing processes for multi-material production, this allows greater design freedom and detail accuracy to be realized. However, due to the novel character of multi-material manufacturing in PBF-LB, the process knowledge for successful and reproducible fabrication is currently lacking. This paper focuses on establishing design guidelines for manufacturing the material pairing of stainless steel 316L (1.4404) and copper alloy CuCrZr (CW106C). The article is accompanied by the development of a specific process chain. As a result of this work, design guidelines for multi-material parts are available for the first time, in regard to arrangement, size, overhangs, economy, powder quality and laser scanning.

AB - Additive manufacturing (AM) can be used to produce multi-material parts in which the material can be varied voxel-wise in all three spatial directions. This means that the paradigm of the homogeneous material can be abandoned and local effects such as heat conduction or damping can be selectively adjusted in the part. Recently, continuous development of machine technology has allowed the production of multi-metal materials in laser powder bed fusion (PBF-LB/MM). Compared to other additive manufacturing processes for multi-material production, this allows greater design freedom and detail accuracy to be realized. However, due to the novel character of multi-material manufacturing in PBF-LB, the process knowledge for successful and reproducible fabrication is currently lacking. This paper focuses on establishing design guidelines for manufacturing the material pairing of stainless steel 316L (1.4404) and copper alloy CuCrZr (CW106C). The article is accompanied by the development of a specific process chain. As a result of this work, design guidelines for multi-material parts are available for the first time, in regard to arrangement, size, overhangs, economy, powder quality and laser scanning.

KW - Design guidelines

KW - Effect-engineering

KW - Laser powder bed fusion (PBF-LB)

KW - Multi-material additive manufacturing (MMAM)

KW - Process chain

UR - http://www.scopus.com/inward/record.url?scp=85166297432&partnerID=8YFLogxK

U2 - 10.1016/j.heliyon.2023.e18301

DO - 10.1016/j.heliyon.2023.e18301

M3 - Article

AN - SCOPUS:85166297432

VL - 9

JO - Heliyon

JF - Heliyon

SN - 2405-8440

IS - 8

M1 - e18301

ER -