Additive Manufacturing Lattice Subdivision for Customization Speed
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Solution Overview
Problem
The generation of highly customized data files for additive manufacturing is time-consuming and computationally intensive, making it expensive and inefficient for mass customization of products.
Innovation Solution
A method for rapid production of objects using light-polymerizable resins, involving inputting boundary shapes and desired mechanical properties into a processor, subdividing the shape into work cells, selecting lattices from a database based on mechanical properties and compatibility, and producing the object through additive manufacturing techniques like stereolithography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If highly customized data files are generated through traditional additive manufacturing methods, then product customization is achieved, but the process becomes time-consuming and computationally intensive
Solution Approach 1:
The boundary shape is subdivided into a plurality of adjacent work cells, and each work cell is filled with lattices from a database. This segmentation allows parallel processing of different regions and reduces the computational complexity of generating customized data files while maintaining product customization capabilities.
Solution Approach 2:
Lattices with different geometries and mechanical properties are pre-stored in a database before the additive manufacturing process. During manufacturing, these pre-prepared lattices are selected and assembled to fill work cells, eliminating the need for real-time complex computational design and significantly reducing data file generation time.
2Productivity
If traditional stereolithography methods are used for manufacturing, then object production is achieved, but the production speed is slow
Solution Approach 1:
The patent employs continuous liquid interface production (CLIP) additive manufacturing, which maintains a continuous liquid interface between the resin and the build platform throughout the manufacturing process. This continuous process eliminates the need for repeated layer-by-layer curing cycles, enabling rapid production of objects with complex lattice structures while maintaining high productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the rapid and cost-effective production of customized objects with desired mechanical properties, improving the efficiency and reducing the computational intensity of the customization process.
Implementation Method 1
create a three-dimensional object by the sequential polymerization of a light polymerizable resin
Data Source
AI summary
A method for the production of an object by additive manufacturing includes inputting a boundary shape and desired mechanical properties for said object, subdividing said boundary shape into a plurality of adjacent work cells, providing a plurality of lattices in a database, each lattice of the database including a geometry and a mechanical property, filling a first one of said work cells with a lattice from the database, the lattice selected based on the correspondence of the mechanical properties of said lattice to said desired mechanical properties of said object, filling the remaining ones of said work cells with lattices from said database to produce a filled boundary shape, each said lattice selected based on: the correspondence of the mechanical properties of said lattice to the desired mechanical properties of the object, and the compatibility of adjacent lattices in adjacent work cells with one another.