Hot Forging Molds
Hot Forging Molds
Solutions for Thermal Shock and High Impact
Solutions for Thermal Shock and High Impact
We provide advanced treatment solutions for various hot forging die materials, including: * H13 Steel Blocks * H13 Modified Steel * DIN Series Steel * Buildup Welding (Repair): Our technology is also effective on dies repaired via buildup welding.
Failure Mode Analysis
Failure Mode Analysis of Hot Forging Molds
Item 1
Thermal Fatigue Cracking
(Proportion of Damage: 40%)
Causes
Repeated heating and cooling of the mold surface.
Thermal fatigue tensile stress generation.
Grain boundary degradation due to high-temperature oxidation.
Reduction in Cr content and hardness due to high temperatures.
Countermeasures
Selection of steel with high rigidity and toughness.
Heat treatment ensuring high toughness quality.
Low-hardness diffusion-type nitriding treatment (KW-NT).
Process Management
Mold cooling design.
Diffusion-type Nitriding treatment.
Item 2
Abrasive Wear
(Proportion of Damage: 15%)
Causes
Intermetallic friction between the mold and the workpiece material.
Mold softening caused by high temperatures.
Countermeasures
Select steel with high-temperature resistance.
Enhance surface hardness of the mold (Surface treatment).
Process Management
Heat treatment.
Surface treatment.
Item 3
Plastic Deformation
(Proportion of Damage: 15%)
Causes
Intermetallic friction between the mold and the workpiece material.
Mold softening caused by high temperatures.
Countermeasures
Select steel with high-temperature resistance.
Enhance surface hardness of the mold (Surface treatment).
Process Management
Heat treatment.
Surface treatment.
Item 4
Die Fracture
(Proportion of Damage: 12%)
Causes
- Excessive impact force or stress concentration.
Countermeasures
Review mold structural strength and perform stress analysis.
Apply heat treatment to ensure high toughness.
Process Management
Item 5
Seizure
(Proportion of Damage: 8%)
Causes
- Adhesion phenomena caused by high-temperature contact between metals.
Countermeasures
Improve mold surface smoothness.
Lower mold surface temperature.