3D Printed Cooling Block for Hot Stamping Mold

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Traditional hot stamping molds are prone to corrosion and have low cooling efficiency due to the use of conventional materials and manufacturing methods, leading to high costs and inefficiencies.

Innovation Solution

A method using a 3D metal printer to fabricate cooling channels on a curved surface, where only the contact parts between the molds are made from expensive, high-thermal-conductivity materials, while less expensive materials are used for non-contact parts, optimizing cooling performance and reducing material costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional materials and manufacturing methods are used for the entire cooling block, then manufacturing simplicity is maintained, but material costs increase and cooling efficiency decreases

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmaterial cost
Core Design Contradiction:
Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent applies different materials to different regions of the cooling block based on functional requirements. The contact surface that requires high durability and thermal conductivity is made from expensive high-performance material, while non-contact portions use less expensive materials. This local differentiation reduces overall material cost while maintaining performance where needed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The cooling block is divided into multiple portions or regions, allowing selective application of materials. The contact surface portion is separated from the non-contact portions, enabling independent material selection and optimization for each region's specific functional requirements.

Inventive Principle:
Principle #1Segmentation

2Temperature

If expensive high-thermal-conductivity materials are used throughout the cooling block, then cooling efficiency is maximized, but material costs increase

Engineering Contradiction:
Improvecooling efficiencyVSAvoidmaterial cost
Core Design Contradiction:
TemperatureVSQuantity of substance

Solution Approach 1:

High-thermal-conductivity expensive materials are applied only to the contact surface portion where thermal transfer is critical, rather than throughout the entire cooling block. This localized application maximizes cooling efficiency at the critical interface while minimizing material costs in non-critical regions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Instead of applying high-performance material uniformly across the entire cooling block, the patent applies it partially only where most needed (the contact surface). This partial action achieves sufficient cooling efficiency without the excessive cost of complete coverage.

Inventive Principle:
Principle #16Partial or excessive action

3Ease of manufacture

If conventional manufacturing methods are used, then manufacturing process simplicity is maintained, but cooling channel fabrication on curved surfaces is impossible

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidcooling channel fabrication capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent replaces conventional mechanical manufacturing methods (like gun drilling) with additive manufacturing technology. This substitution enables the fabrication of cooling channels on curved surfaces and complex geometries that are impossible to achieve with traditional mechanical processes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The manufacturing approach transitions from subtractive (drilling, machining) to additive (3D printing) processes. This parameter change in the manufacturing method fundamentally expands the capability to create cooling channels on curved surfaces and complex geometries while maintaining manufacturing efficiency.

Inventive Principle:
Principle #35Parameter changes

4Reliability

If the entire cooling block is made from high-performance material, then durability and mechanical properties are maximized, but material costs increase

Engineering Contradiction:
Improvedurability and mechanical propertiesVSAvoidmaterial cost
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

High-performance durable materials are applied only to the contact surface portion where durability and mechanical properties are critically needed. Non-contact portions use less expensive materials, reducing overall cost while maintaining reliability where it matters most.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The cooling block is segmented into contact and non-contact portions, allowing independent material optimization. The contact portion receives high-performance material for durability, while non-contact portions use cost-effective materials, achieving reliability optimization without excessive cost.

Inventive Principle:
Principle #1Segmentation

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 enhances cooling efficiency and reduces material costs, resulting in improved economic and procedural efficiencies by maximizing the use of expensive materials only where necessary.

Implementation Method 1

a process of second step for forming an upper block to form channels using a 3D metal printer respectively on the plurality of semicircular channels formed in the lower block

Methodology Applied
Scientific Effect3D Printing: 3D Printing

Implementation Method 2

a cooling block having channels through which cooling water passes is provided within the hot stamping mold

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS9849548B2Method of manufacturing cooling block for hot stamping mold using three-dimensional metal printer
Publication Date: 2017.12.26 KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
  • US9849548B2 patent drawing
  • US9849548B2 patent drawing
  • US9849548B2 patent drawing

AI summary

The present disclosure relates to a method of manufacturing a cooling block for a hot stamping mold using a three-dimensional (3D) metal printer, and more particularly, to a method of manufacturing a cooling block for a hot stamping mold using a 3D metal printer including a process of first step for forming a plurality of semicircular channels through which a fluid passes on a lower block, and a process of second step for forming an upper block to form channels using a 3D metal printer respectively on the plurality of semicircular channels formed in the lower block along the plurality of semicircular channels.