Applications for TD Coatings
TD coatings are incredibly hard (3500-4000 HV), wear and gall resistant, and have a low coefficient of friction, making them a great solution for components that otherwise fail to last as long as needed. In contrast to traditional TD coating processes, which are performed in a molten salt bath, our TD coatings are performed in a controlled diffusion environment. This allows us to coat intricate parts without having to deal with remnant salt deposits.
TD coatings are ideal for metal forming applications that require high strength alloys, high tolerance parts, reduced lubrication, faster run times, and lower costs. When under forming pressure, chrome atoms in tools and work materials bond, resulting in galling. Vanadium Carbide effectively eliminates galling by acting as a permanent barrier between the tool and the work piece.
- Deep Drawing
- Die Casting
- Tube Forming
- Swage and flange tools
- Tube forming rolls
- Mandrel balls
- Extrusion punches and dies
- Cores and pins in magnesium, zinc, and aluminum die cast operations
- Shaving punches
- Embossing rolls
- Bending Dies
- Draw Punches and Dies
- Knurling Tools
Stainless steels and common tool steels like A-2 and D-2 have high chrome content in them. Chrome atoms in the tool and chrome in the work material are naturally attracted to the point that they bond under forming pressure, creating galling. TD effectively eliminates this problem by acting as a permanent barrier between the two materials.
TD Coatings are ideal for today's forming industry goals of high strength alloys, high tolerance parts, reduced lubrication, faster run times, and lower costs. They are incredibly hard, wear and gall resistant, and have a low coefficient of friction, making them a great solution for components that otherwise fail to last as long as needed.
Proper material flow is crucial. TD Coatings maintain the draw radius mirror finish for a significantly greater amount of time.
High pressure and heat create havoc with lubricants. Vanadium carbide offers the solution by decreasing friction and heat build-up, which consequently increases metal flow without seizing and galling.
Piercing and Shearing:
Shears, blades, and pierce punches are subject to extremely high abrasive wear while under pressure. Almost all of the wear on a blade or punch occurs on the sides as it enters and exits the work material. TD Coatings effectively protect the tool by making it harder than the work material. Vanadium Carbide is over 90HrC in hardness and, since it is not dependent on an “envelope” for adhesion, tools can be re-sharpened many times.
TD Coatings stand up to the speed and pressure of roll forming the heaviest parts, even in tight corners with poor lubrication.
Burrs from cut-off and weld seams create severe galling and gouging during end forming. TD Coatings are the best solution to increase the life of swage and flange tools, tube forming rolls, mandrel balls, and shoes.
Extrusion punches are subject to enormous compressive force in operation to the extent that a coating without great adhesive strength will peel right off. TD Coatings stay on, while also improving the finish of parts and extending punch life by 8+ times.
TD can be used on cores and pins in magnesium, zinc, and aluminum die casting operations to greatly improve part quality; reduce soldering, corrosion and wash-out; and extend the life of tooling.