Alphas-V (TD)

ALPHAS-V utilizes the thermal reactive diffusion process and deposits a solid vanadium carbide layer. This process improves the surface property, Anti-Wear, Anti-Galling and Anti-Seizure problems that are primary issues for Tooling industries or Stamping facilities.

ALPHAS-V is internationally known as the Toyota Diffusion Process, or TD process, developed in the Toyota Central Research and Development Lab Inc. in Japan. The superior coating properties of the ALPHAS-V (TD) process have been proven in many different industries for decades, and the TD process still is considered to be the best coating process. 

The ALPHAS-V coating process is metallurgically bonded through diffusion and is a tight and strong adhesion to the substrate steel, which offers exceptional flaking resistance. Due to the hardness and thicker deposition, the dense and pure structure, ALPHAS-V provides unparalleled properties and contributes to a significant extension of the lifespan of tools and dies.

Characteristics

Coating VC- Vanadium Carbide
Hardness 3200-3500 Vickers (Approx. HRC 95-100)
Thickness 4-5µm for cutting, 5-8µm for forming, die casting etc.
Surface Dense, Non-Porous
Oxidation Temp Approx 1250°F
Coefficient Friction 0.29 (but it is improved by base roughness)
Adhesive Tendency Low affinity against other metals

 

 

Atoms or ions of carbide constituents dispersed in the salt bath combines with C atoms conained in the substrate; then the carbide layer is formed on the surface of the substrate.  Thereafter, the layer is expanded by reaction between C and the carbide constituent on the formed carbide layer and the continuous supply of C atoms from the substrate.  

 

 

 

 

 

 

 

 

 

 

Recommended Substrate Materials for ALPHAS-V (TD)

1. DCMX-Matrix Type Tool Steel distributed by International Mold Steel

 

 

Application Data

Cold Forging

Cutting

Die Casting

Extrusion

Hot Forging

Machine Component

Metal Stamping

Metal Stamping  - Pierce Punch

Mold

Other

Roll Forming

Shearing

 

 

 

Galleries
Alphas-V Example Gallery
D2(SKD11)
D2(SKD11)
MATERIAL-DC53
MATERIAL-DC53
D2(SKD11)
D2(SKD11)
H13 (SKD61)
H13 (SKD61)
D2(SKD11)
D2(SKD11)
DC53
DC53
D2(SKD11)
D2(SKD11)
D2(SKD11)
D2(SKD11)
D2(SKD11)
D2(SKD11)
DC53
DC53
Facts and Data
Rolling Speed
Rolling Speed
Strip Drawing Friction
Strip Drawing Friction
Friction
Friction
Friction Sliding
Friction Sliding
Galling Behavior
Galling Behavior
Ironing Friction
Ironing Friction
Rolling Speed
Rolling Speed
Rolling Speed Diagram
Rolling Speed Diagram
Sliding
Sliding
Spalling
Spalling
Table III
Table III
Table III 2
Table III 2
Wear
Wear
Wear Rate
Wear Rate
Micro Vickers Hardness - ALPHAS-V
Micro Vickers Hardness - ALPHAS-V