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-----Rust in narrow pocketed surface of EN plated component
We are doing Electroless nickel plating on Fe based material which will be used in computer hard disc assembly. This is stamped part followed by machining and tumbling process before EN plating. High burr which will come stamping process becoming closed during the tumbling process and creating micro pockets along the edges and lot of tumbling powder stuck in side these macro gaps. Subsequent plating process can not able to clean these pocketed areas thoroughly and forming rusty spots/Yellow stains along the edges after plating. Your in puts very much appreciated to eliminate this problem.
Kondepudi Raoplating shop employee - Singapore
September 12, 2008
First of two simultaneous responses --
How about choosing a different media for tumbling, the main goal here should be dealing with the root of the problem, burrs.
Mark Bakerprocess engineer - Malone, New York
September 17, 2008
Second of two simultaneous responses --
Are you tumbling wet? If so, try not to. G. Marrufo-Mexico
Guillermo MarrufoMonterrey, NL, Mexico
September 18, 2008
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