Selective Galvanizing Using Kinetic Spraying
2003-01-1237
03/03/2003
- Event
- Content
- General corrosion protection of sheet materials such as steel used in automobile construction has reached a high level of performance, due primarily to the incorporation of mill-applied treatments such as electrogalvanizing, galvannealing and other coil-coating processes developed over the last half century. While such treatments have greatly extended the corrosion resistance of steel and its various body constructs, attention is now focused on aspects of the manufacturing process wherein these intended protections are compromised by such features as weldments, joins, cut edges and extreme metal deformations such as hems. A novel metal deposition process, based on high-velocity impact fusion of solid metal particles, has been used to extend the corrosion resistance of base steel and pre-galvanized sheet, by selectively placing highly controlled depositions of zinc and other sacrificial materials in close proximity to critical manufacturing details. The technology of this process is reviewed and preliminary results are reported for hem flange construction.
- Pages
- 8
- Citation
- McCune, R., Ricketts, M., Gao, G., Neiser, R. et al., "Selective Galvanizing Using Kinetic Spraying," SAE Technical Paper 2003-01-1237, 2003, https://doi.org/10.4271/2003-01-1237.