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Multimetal Research in Powder Bed Fusion: A Review.

Liming Yao1,2, Aditya Ramesh2, Zhongmin Xiao2

  • 1State Key Laboratory of Robotics and Systems (HIT), Harbin 150000, China.

Materials (Basel, Switzerland)
|June 28, 2023
PubMed
Summary
This summary is machine-generated.

This article explores powder bed fusion (PBF) techniques like laser powder bed fusion (LPBF) and electron beam powder bed fusion (EB-PBF) for multimetal additive manufacturing. It addresses challenges and proposes solutions for improved material quality and reliability.

Keywords:
additive manufacturingdissimilar alloysmelt pool flowmicrostructuremultimetalpowder bed fusion

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Area of Science:

  • Additive Manufacturing
  • Materials Science
  • Metallurgy

Background:

  • Powder Bed Fusion (PBF) is a key additive manufacturing technology.
  • Multimetal additive manufacturing presents unique challenges.
  • Existing PBF techniques include laser powder bed fusion (LPBF), electron beam powder bed fusion (EB-PBF), and large-area pulsed laser powder bed fusion (L-APBF).

Purpose of the Study:

  • To discuss various PBF techniques for multimetal additive manufacturing.
  • To identify and analyze challenges in multimetal additive manufacturing.
  • To propose solutions and future research directions.

Main Methods:

  • Review of existing literature on PBF techniques.
  • Discussion of challenges such as material compatibility, porosity, cracks, loss of alloying elements, and oxide inclusions.
  • Analysis of proposed solutions including parameter optimization, support structures, and post-processing.

Main Results:

  • Identified key challenges in multimetal additive manufacturing using PBF.
  • Highlighted the importance of parameter optimization and post-processing for defect mitigation.
  • Emphasized the need for advanced materials like metal composites and functionally graded materials.

Conclusions:

  • Successful multimetal additive manufacturing requires addressing material compatibility and process-induced defects.
  • Optimization of printing parameters and post-processing are crucial for high-quality parts.
  • Future research should focus on novel materials and multi-alloy structures to unlock the full potential of PBF.