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Particle scale modelling of powder spreading in powder bed fusion additive manufacturing

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thesis
posted on 25.02.2021, 05:40 by LIN WANG
Powder bed fusion is an additive manufacturing process where powders are added and melted layer by layer. In this process, powder spreading by rollers or blades plays a significant role in affecting powder layer structure then process speed and part quality. However, the dynamics of powder spreading is still not well known. This thesis presents a comprehensive investigation of powder dynamics in spreading, including effects of key variables such as particle adhesion, layer gap, spreader geometries and speed, and particle size distribution. This work can help researchers and industries in understanding, prediction and optimisation of this process.

History

Campus location

Australia

Principal supervisor

Zongyan Zhou

Additional supervisor 1

Aibing Yu

Year of Award

2021

Department, School or Centre

Chemical Engineering

Course

Doctor of Philosophy

Degree Type

DOCTORATE