PREDICTION OF RESIDUAL STRESSES OF 3D-PRINTED PLATES UTILIZING SYSWELD

Abstract

Investigating how residual stress distribution evolves with increasing build height (number of layers) is crucial for understanding scalability and dimensional control in additive manufacturing. Post-processing, such as (unclamping, machining, heat treatment) interact with the existing stress state and have their influence with varying build heights (number of layers). This was the subject of speculation in many up-to-date researches. Among the drawbacks of the residual stress is its impact on fatigue crack propagation.

This work studies the evolved residual stress after finishing each manufacturing phase. The SYSWELD finite element software was utilized for predicting the residual stress after clamping, unclamping, surface finishing and heat treatment. The study was based on the required number of layers. Fourteen set of results for different number of layers production between 5-layers and 150 layers.

The study ends with providing readymade information about the expected residual stress after each process of additive manufacturing.