Multi-Component Topology Optimization for Powder Bed Additive Manufacturing (MTO-A)

[+] Author and Article Information
Yuqing Zhou

University of Michigan, Ann Arbor, Michigan 48109

Tsuyoshi Nomura

Toyota Research Institute of North America, Ann Arbor, Michigan, 48105, Toyota Central R & D Labs., Inc., Yokomichi, Nagakute 480-1192, Japan

Kazuhiro Saitou

University of Michigan, Ann Arbor, Michigan 48109

1Corresponding author.

ASME doi:10.1115/1.4042640 History: Received July 31, 2018; Revised January 21, 2019


Topology optimization for additive manufacturing has been limited to the design of single-piece components that fit within the printer's build volume. This paper presents a gradient-based multi-component topology optimization method for structures assembled from components built by powder bed additive manufacturing, which enables the design of multi-piece assemblies larger than the printer's build volume. Constraints on component geometry for powder bed additive manufacturing are incorporated in a density-based topology optimization framework, with an additional design field governing the component partitioning. For each component, constraints on the maximum allowable build volume (i.e., length, width, and height), the elimination of enclosed cavities, and the minimum printable feature size are imposed during the simultaneous optimization of the overall topology and component partitioning. Numerical results of the minimum compliance designs revealed that manufacturing constraints, previously applied to single-piece topology optimization, can unlock richer design space when applied to multi-component designs.

Copyright (c) 2019 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In