3D Printed Mold Character Optimization for Metal Casting

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Solution Overview

Problem

Conventional methods for creating molds for metal castings, especially those featuring intricate characters or text, are labor-intensive, time-consuming, and prone to errors, leading to increased manufacturing costs and reduced yield.

Innovation Solution

The use of three-dimensional printing or additive manufacturing techniques to create custom molds for metal castings, optimizing character design based on depth and bend radius, and incorporating gates to improve flow during casting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional manual processes are used to create molds for metal castings with characters, then the molds can be created individually for specific castings, but the process becomes labor-intensive and time-consuming

Engineering Contradiction:

Improvecustom mold creationVSAvoidmanufacturing time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical mold-making processes with automated 3D printing technology. The system uses digital models and automated printing to create molds, eliminating labor-intensive hand carving and shaping operations while maintaining the ability to create custom character designs.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent optimizes character geometry parameters such as depth and bend radius to ensure proper metal flow during casting. By adjusting these parameters and adding gates where needed, the system achieves both customization and manufacturing efficiency without requiring excessive manual intervention.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If intricate character features are added to metal castings, then the product design complexity increases, but errors occur in typesetting and bend radius causes misrun

Engineering Contradiction:

Improvecharacter design customizationVSAvoidcharacter accuracy

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent replaces manual typesetting and character carving with automated 3D printing based on digital models. This eliminates human errors in character placement, spacing, and formatting while maintaining precise control over character geometry and bend radii through software optimization.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system incorporates optimization algorithms that analyze character geometry and provide feedback on potential casting issues such as insufficient bend radius or inadequate depth. The system automatically adjusts character parameters or adds gates to prevent misruns, ensuring manufacturing precision.

Inventive Principle:

Principle #23Feedback

3Ease of manufacture

If conventional molding processes are used for characters, then molds can be created, but the time and yield required to cast characters becomes a significant portion of manufacturing costs

Engineering Contradiction:

Improvemold creation capabilityVSAvoidcasting yield

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent replaces conventional step-by-step manual mold-making processes with automated 3D printing. This dramatically reduces the time required to create molds while maintaining the ability to produce high-quality custom character castings, thereby improving overall productivity and reducing the proportion of manufacturing time spent on character casting.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 more efficient and accurate creation of molds, reducing manufacturing time and costs, while improving the yield and quality of metal castings with intricate designs.

Implementation Method 1

The mold is created according to the printing instructions. In some implementations, creating the mold includes creating the mold using an additive manufacturing process. In some implementations, creating the mold includes creating the mold by 3D sand printing.

Methodology Applied

Scientific Effect3D Printing: 3D Printing

Implementation Method 2

the method further includes casting the memorialization product by adding molten metal to the created mold

Methodology Applied

Scientific EffectPouring:

Data Source

PatentUS20250033289A1Systems and methods for casting characters without a backing substrate

Publication Date: 2025.01.30 MATTHEWS INTERNATIONAL CORP

AI summary

Methods and systems for creating a mold for a memorialization product comprising characters without a backing substrate are described herein. In a process for creating a mold, a three-dimensional (3D) model of a product design is generated. The product design includes characters with customized features. A mold design is generated based upon the 3D model of the product design. The mold design is optimized including character optimization based on the depth and bend radius of the characters. Printing instructions for creating the mold are generated and accessed by a processing device. The mold is created according to the printing instructions. A product, such as a bronze memorialization product, can be cast using the mold.