Additive Mold Insert with Integrated Cooling
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Solution Overview
Problem
Traditional mold manufacturing processes for blow molding are time-consuming and costly, making it difficult to produce and modify molds efficiently for forming articles like bottles or containers.
Innovation Solution
The use of additive manufacturing to create mold assemblies with surface inserts and supports, allowing for the rapid production of molds with complex geometries and integrated cooling/heating channels, reducing material usage and enabling faster prototyping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional subtractive manufacturing processes are used to create mold portions, then manufacturing precision and strength are improved, but production time and cost increase significantly
Solution Approach 1:
The mold is divided into separate portions (first mold portion and second mold portion) that can be independently manufactured and then assembled. This segmentation allows each portion to be produced through additive manufacturing in parallel, significantly reducing total production time while maintaining precision through controlled assembly processes
Solution Approach 2:
The manufacturing process transitions from subtractive to additive manufacturing, fundamentally changing the production parameters. This enables complex geometries and internal cooling channels to be created directly during manufacturing, reducing both time and material waste while achieving required precision
2Strength
If traditional mold manufacturing methods are used, then structural strength is improved, but material usage and cost increase
Solution Approach 1:
The mold portions incorporate internal cooling channels and optimized material distribution that reduce overall material usage. The additive manufacturing process enables creating lightweight structures with sufficient strength through strategic material placement rather than uniform thick sections
Solution Approach 2:
The mold assembly combines different materials - metal portions for structural strength and ceramic portions for heat resistance and cooling efficiency. This composite approach optimizes both strength requirements and material economy by using each material where it provides maximum benefit
3Temperature
If complex mold geometries with cooling channels are manufactured traditionally, then temperature regulation is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The cooling channels are integrated directly into the mold portions during additive manufacturing, merging the cooling system with the mold structure itself. This eliminates the need for separate cooling apparatus and complex assembly procedures, reducing manufacturing complexity while achieving effective temperature control
Solution Approach 2:
The mold portions are designed with self-contained cooling channels that circulate coolant internally, providing self-regulation of temperature. The additive manufacturing process creates these channels as integral features, allowing the mold to manage its own thermal requirements without external complexity
Data Source
AI summary
A mold assembly for molding articles including a surface insert and a surface insert support configured to support at least a portion of the surface insert. In embodiments, the surface insert is configured to form at least a portion of a molded article and the surface insert has a thickness within a range of about 0.250 or 0.300 inches and about 1.500 inches or about 2.25 inches. The mold assembly may include a holding unit, and at least a portion of the surface insert and/or at least a portion of the surface insert support may be formed by additive manufacturing.