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Continuous toolpaths for additive manufacturing

Patent ·
OSTI ID:1998295
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Toolpath generation for additive manufacturing systems involves operations on polygonal contours derived from a model for additively manufacturing a structure. One aspect involves modifying or creating a model to allow parts to be printed without starting and stopping the printing equipment by generating continuous toolpaths or toolpaths having a reduced number of isolated paths. Another aspect involves modifying a slicing engine to generate a continuous toolpath or toolpath having a reduced number of isolated paths based on a representation of an object to be additively manufactured. Another aspect involves selectively placing the gaps at alternating positions among the sliced layers to create a zippering effect.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
11,630,439
Application Number:
16/842,274
OSTI ID:
1998295
Country of Publication:
United States
Language:
English

References (10)

Automated torch path planning using polygon subdivision for solid freeform fabrication based on welding journal January 2004
Ma–Schlenker c-Octahedra in the 2-Sphere journal September 2017
An implicit slicing method for additive manufacturing processes journal November 2017
Additive manufacturing: A framework for implementation journal March 2014
A topological hierarchy-based approach to toolpath planning for multi-material layered manufacturing journal February 2006
A framework for tool path optimization in fused filament fabrication conference June 2017
Path Optimization Along Lattices in Additive Manufacturing Using the Chinese Postman Problem journal June 2017
A circle packing algorithm journal July 2003
A tool-path generation strategy for wire and arc additive manufacturing journal April 2014
The status, challenges, and future of additive manufacturing in engineering journal December 2015

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