- Posted in Production Services & Components
- Thursday, 26 December 2013 00:08
- by Tim Mapes
- Hits: 26550
Ever increasing performance requirements of components demand higher performance from materials. Materials such as Ni, Co or Ti alloys are well known for their high temperature properties and excellent wear/corrosion resistance. Building a whole part with such expensive alloys may be cost prohibitive. Traditional coating technologies have metallurgical limitations when costing these alloys onto low cost substrates. The following summarizes some of the challenges:
- Cost of materials
- Metallurgical bonding
- Coating thickness
With its closed loop feedback system and five-axis deposition capability, the DMST process can coat expensive metals onto low cost substrates of different geometries. Further, it creates a metallurgical bond and can be applied up to millimeters thick. Coating parts with expensive but high performance materials offers a cost effective solution to the material challenges. This allows great savings on material costs while still providing performance functionality of the parts.
- Apply wear and/or corrosion resistant coatings
- Coating thickness can range from microns to millimeters
- Metallurgically bonded DMST coatings do not spall or peel off like mechanically bonded coatings
- Small heat affected zone (HAZ) between coating and part gives better coating integrity (unlike PTA/TIG)
- Patented closed loop control reduces part distortion
- Coating on 3D surfaces with 5-axis motion system
- Selective area coating possible without any masking
- Part sizes can vary from a few centimeters to a few meters
- Wide variety of coating materials including high hardness steels (RC65) to stainless steels, Stellites, Inconels and cermets (ceramic metal composites)
- Automotive wear components, such as pistons, piston rings, valves, breaks, etc.
- Cutting implements, such as knives for forestry, agricultural industry, book bindery, etc.
- Perishable tools in forging, stamping, metal forming and other industries