Impact Innovations GmbH, located in Germany is the global technology leader for industrial cold spray systems and processes. Cold spraying is a highly innovative process for surface coating and additive manufacturing. High-performance cold gas coating is used for wear protection and emission reduction for brake discs.
Compared to other thermal spray processes, the Impact Cold Spray System has the following advantages when coating brake discs:
Very low thermal impact and thus no distortion (esp. compared to other technologies as laser cladding)
Lowest porosity and uniform coatings layer
Grinding allowance can be significantly reduced (lowest grinding costs)
Layer thickness reduction possible due to almost no disc distortion and very uniform coating thickness
Identical process parameters for all different disc dimensions and shapes
Highest bonding strength (no delamination even at high forces)
Wear reduction of >95%
Full corrosion resistance (even over 720 hours salt spray and wear test)
Single layer coating (no base layer necessary)
No patent protection from large automotive manufacturers as for laser cladding
Minimal coating thickness required and thus minimal total process costs for coating and grinding