Adaptive Deposition Coverage Toolpath Planning for Metal Deposition Process


Coverage toolpath planning is very critical to deposition quality in layered manufacturing especially for metal deposition processes. The correct choice of toolpath patterns will make it possible to build a fully dense and functional metal part. The major consideration when selecting a toolpath pattern is the complete coverage of the to-be-deposited geometry which means no voids should happen. This paper presents the research on the toolpath coverage efficiency and the strategies to predict the possibility of the occurrence of deposition voids so that the appropriate toolpath pattern can be applied to avoid deposition voids. The contour-parallel offsetting pattern and the adaptive zigzag toolpath pattern will be applied as the alternate options and the final adaptive deposition coverage toolpath will be the combination of these two basic patterns depending on the prediction results of the occurrence of the deposition voids. The experiment has demonstrated that the adaptive toolpath pattern can greatly improve the reliability of the coverage path planning in deposition processes.

Meeting Name

ASME 2007 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC2007 (2007: Sep. 4-7, Las Vegas, NV)


Mechanical and Aerospace Engineering

Keywords and Phrases

Deposition Quality; Metal Deposition; Toolpath Planning

Document Type

Article - Conference proceedings

Document Version


File Type





© 2007 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

07 Sep 2007

This document is currently not available here.