Heat Sink Support Structures for 3D Printing Hot Spots
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Solution Overview
Problem
Current additive manufacturing systems face challenges in generating support structures that effectively manage thermal distortion and residual stress, as they primarily consider geometric characteristics without adequate heat dissipation strategies.
Innovation Solution
The method involves analyzing the thermal history of the additive manufacturing process to identify 'hot spots' and strategically placing heat sink support structures at these locations, which act as effective heat sinks to reduce thermal distortion and material waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If support structures are added to manage thermal distortion, then thermal distortion is reduced, but device complexity increases
Solution Approach 1:
The patent applies local quality by placing heat sink support structures specifically at identified hot spot locations rather than uniformly across the entire model. The system analyzes thermal history to determine which specific regions require heat dissipation support, adding structures only where thermally critical, thus reducing overall device complexity while effectively managing thermal distortion at problem areas.
2Loss of energy
If heat sink support structures are strategically placed, then heat dissipation is improved, but manufacturing process complexity increases
Solution Approach 1:
The patent applies preliminary action by performing thermal history analysis and hot spot identification before the actual additive manufacturing process. The system pre-determines optimal locations for heat sink support structures based on simulated thermal behavior, allowing these structures to be integrated into the model beforehand. This preliminary planning simplifies the manufacturing process by eliminating the need for post-processing thermal analysis or iterative adjustments.
3Manufacturing precision
If support structures are added to reduce thermal distortion, then manufacturing precision is improved, but material usage increases
Solution Approach 1:
The patent applies local quality by adding heat sink support structures only at specific hot spot locations identified through thermal history analysis, rather than adding support structures throughout the entire model. This targeted approach minimizes material usage while effectively addressing thermal distortion only where it occurs, reducing overall material waste compared to uniform support structure placement.
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 minimizes thermal distortion and reduces material costs by optimizing heat dissipation during the manufacturing process, as demonstrated by finite element analysis simulations.
Implementation Method 1
strategically placing heat sink support structures at these locations, which act as effective heat sinks to reduce thermal distortion
Implementation Method 2
heat sink support structures... act as effective heat sinks to reduce thermal distortion
Data Source
Figure 1A~1E
Figure 2
Figure 3
AI summary
Additive manufacturing methods and corresponding systems and computer-readable mediums. A method includes receiving (505), by a data processing system (600), a three-dimensional (3D) model (100) of a product to be manufactured by additive manufacturing. The method includes generating (510), by the data processing system (600), a time-based heat map (306) of temperatures of the product during manufacture. The method includes identifying (515), by the data processing system (600), hot spots (302) in the heat map (306) where the temperature exceeds a first predetermined threshold. The method includes adding (525), by the data processing system (600), heatsink support structures (422) to the 3D model at locations corresponding to the hot spots (302) to produce a modified 3D model. The method includes storing (530), by the data processing system (600), the modified 3D model (420).