Hot-Forged Member Insulation Layout for Temperature Retention

Solution Overview

Problem

Poor workability alloys, such as Ni-base alloys and Ti alloys containing a γ′ phase, experience a drop in temperature during hot forging, leading to deteriorated hot workability and increased likelihood of defects like cracks.

Innovation Solution

A method involving a heating step to reach the hot forging temperature, followed by bonding a heat-resistant insulation material, such as inorganic fibers, to specific portions of the material to prevent temperature drops and promote efficient hot forging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If glass woven fabric is used to wrap the material for hot forging, then temperature drop is prevented, but heating time increases and temperature measurement becomes difficult

Engineering Contradiction:

Improvetemperature maintenanceVSAvoidheating time

Core Design Contradiction:

TemperatureVSLoss of time

Solution Approach 1:

The insulation is applied selectively only to specific surfaces of the material for hot forging, dividing the insulation coverage into necessary and unnecessary portions. This segmentation removes the heat insulating effect from areas where it is not needed, allowing faster heating while maintaining temperature where required.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The harmful heat insulating effect is extracted and removed from surfaces where insulation is not needed. By taking out the insulation from unnecessary areas, the heating efficiency is improved without compromising temperature maintenance in critical areas.

Inventive Principle:

Principle #2Taking out (Extraction)

2Temperature

If glass woven fabric is used to wrap the material for hot forging, then temperature drop is prevented, but temperature measurement becomes difficult

Engineering Contradiction:

Improvetemperature maintenanceVSAvoidtemperature measurement

Core Design Contradiction:

TemperatureVSMeasurement precision

Solution Approach 1:

The insulation is applied selectively only to specific surfaces of the material for hot forging, dividing the insulation coverage into necessary and unnecessary portions. This segmentation removes the heat insulating effect from areas where it is not needed, allowing faster heating while maintaining temperature where required.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The harmful heat insulating effect is extracted and removed from surfaces where insulation is not needed. By taking out the insulation from unnecessary areas, the heating efficiency is improved without compromising temperature measurement capability.

Inventive Principle:

Principle #2Taking out (Extraction)

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 method enables efficient hot forging while preventing defects like cracks, even when using poor workability alloys, by maintaining a higher temperature and reducing thermal insulation effects.

Implementation Method 1

bonding a heat-resistant insulation material, such as inorganic fibers, to specific portions of the material to prevent temperature drops

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

a heating step of heating an unheated material for hot forging in a furnace to a hot forging temperature

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS12290853B2Method for manufacturing hot-forged member

Publication Date: 2025.05.06 PROTERIAL LTD

AI summary

A method for manufacturing a hot-forged member includes heating an unheated material for hot forging in a furnace to a hot forging temperature; bonding a heat-resistant insulation material to at least a part of a surface of a material for forging removed from the furnace to obtain a material to be hot forged; and compressing a part or all of the material to be hot forged into a predetermined shape using any of a die, an anvil, and a tool.