Dual-Material Component for Thermal Conduction and Weldable Joints

Solution Overview

Problem

Existing methods face challenges when joining components of dissimilar metals due to inconsistencies in weld quality, particularly when one metal is not well-suited for joining to a larger assembly.

Innovation Solution

A method involving additive manufacturing to create a dual-material component, where a first material with high thermal conductivity is used for heat management, and a second material, compatible for welding, is used for forming a weld joint with the assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a component is manufactured from a first material optimized for thermal management, then thermal conductivity is improved, but weldability deteriorates due to dissimilar metal joining difficulties

Engineering Contradiction:

Improvethermal conductivityVSAvoidweld quality consistency

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The component is divided into two distinct material regions: a first material portion optimized for thermal management properties and a second material portion optimized for weldability. This segmentation allows each portion to be manufactured from materials specifically selected for their respective functions, resolving the contradiction between thermal performance and weld quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the component have different material properties tailored to their specific functions. The first material portion provides superior thermal conductivity where heat management is critical, while the second material portion provides consistent weldability at the joining interface. This local differentiation of material quality resolves the contradiction by optimizing each region for its primary requirement.

Inventive Principle:

Principle #3Local quality

2Ease of manufacture

If a component is manufactured from a second material optimized for welding compatibility, then ease of joining is improved, but thermal management performance deteriorates

Engineering Contradiction:

ImproveweldabilityVSAvoidthermal conductivity

Core Design Contradiction:

Ease of manufactureVSTemperature

Solution Approach 1:

The component is divided into two distinct material regions: a first material portion optimized for thermal management properties and a second material portion optimized for weldability. This segmentation allows each portion to be manufactured from materials specifically selected for their respective functions, resolving the contradiction between thermal performance and weld quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the component have different material properties tailored to their specific functions. The first material portion provides superior thermal conductivity where heat management is critical, while the second material portion provides consistent weldability at the joining interface. This local differentiation of material quality resolves the contradiction by optimizing each region for its primary requirement.

Inventive Principle:

Principle #3Local quality

3Device complexity

If dissimilar metals are joined using conventional techniques, then manufacturing simplicity is maintained, but weld quality consistency deteriorates

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidweld quality consistency

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The component is divided into two distinct material regions: a first material portion optimized for thermal management properties and a second material portion optimized for weldability. This segmentation allows each portion to be manufactured from materials specifically selected for their respective functions, resolving the contradiction between thermal performance and weld quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the component have different material properties tailored to their specific functions. The first material portion provides superior thermal conductivity where heat management is critical, while the second material portion provides consistent weldability at the joining interface. This local differentiation of material quality resolves the contradiction by optimizing each region for its primary requirement.

Inventive Principle:

Principle #3Local quality

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 the creation of components with optimal thermal management properties while ensuring a robust and consistent weld joint, addressing the challenges of dissimilar metal joining.

Implementation Method 1

additively manufacturing a component portion from a first material

Methodology Applied

Scientific EffectAdditive manufacturing: 3D Printing

Implementation Method 2

the first material can be configured to manage heat within the assembly and the first material can have a higher thermal conductivity than the second material

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

welding the base portion of the component to the assembly at a weld interface to form a weld joint

Methodology Applied

Scientific EffectWelding: Welding

Data Source

PatentUS20250050418A1Dual-material components and methods of making therefor

Publication Date: 2025.02.13 ROSEMOUNT AEROSPACE INC

AI summary

In accordance with at least one aspect of this disclosure, a system can include, a housing assembly and an element assembly having a dual-material component therein, the element assembly joined within the housing assembly via a weld joint at a weld interface between the dual material component and the housing assembly.