Mold Core with Conformal Thermal Channels
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Solution Overview
Problem
Traditional methods for creating molding tools lack the ability to efficiently integrate conformal heating and cooling lines, limiting the precision and thermal control necessary for forming complex molded parts.
Innovation Solution
A mold core package is formed using stacked particulate layers with a binding agent, incorporating elongate sacrificial displacement lines that define conformal heating and cooling channels, allowing for precise thermal management during the molding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional methods are used to create molding tools, then the manufacturing process is simpler, but the ability to integrate conformal heating and cooling lines is limited
Solution Approach 1:
The patent incorporates heating and cooling lines into the mold core package before the final molding process. The conformal lines are pre-positioned within the particulate layers during package fabrication, allowing thermal management features to be integrated into the tool structure in advance rather than added later, thus improving adaptability without significantly increasing overall process complexity
Solution Approach 2:
The patent creates conformal heating and cooling lines that follow the specific thermal requirements of different regions of the mold cavity. The lines are positioned at varying distances from the cavity surface, with closer spacing in high-heat-generation areas, providing localized thermal control that adapts to the specific heat generation patterns of the molded part
2Manufacturing precision
If conformal heating and cooling lines are integrated into the molding tool, then thermal control precision is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent uses a mold core package that replicates the final tool structure, including the conformal heating and cooling lines, before the actual molding process. The particulate layers are arranged to create sacrificial walls and displacement lines that define the exact positions of thermal control features in the finished tool, allowing precise thermal management geometry to be created through the packaging process itself rather than complex post-processing
Solution Approach 2:
The patent introduces a mold core package as an intermediary structure that contains sacrificial displacement lines. These lines are positioned within the particulate layers and serve as templates for the final conformal heating and cooling channels. The intermediary package allows complex thermal line geometries to be established indirectly through the packaging arrangement rather than direct fabrication
3Measurement precision
If stacked particulate layers with binding agent are used to form the mold core package, then conformal lines can be precisely positioned, but the manufacturing process becomes more complex
Solution Approach 1:
The patent divides the mold core package into multiple stacked particulate layers, each representing a cross-sectional slice of the final structure. The binding agent is applied selectively to bind particles within each layer, creating discrete buildable units that can be fabricated and positioned with high precision. This segmentation allows the complex three-dimensional conformal line geometry to be constructed layer-by-layer with controlled accuracy
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
The solution enables improved thermal control and precision in molding tools, reducing the risk of warpage and cracks, while enhancing part quality and manufacturing efficiency by allowing for integrated, conformal heating and cooling lines that match specific thermal requirements.
Implementation Method 1
a plurality of stacked particulate layers having a binding agent
Implementation Method 2
An elongate sacrificial displacement line extends through the mold core package adjacent a forming surface
Data Source
AI summary
A mold core package for forming a molding tool includes a plurality of stacked particulate layers having a binding agent. The plurality of stacked particulate layers form sacrificial walls. An elongate sacrificial displacement line extends through the mold core package adjacent a forming surface of the mold core package. A mold cavity is defined by the stacked particulate layers.