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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Electroplating Engine Bore
I'm new to electroplating and was wondering if anyone could provide
some insight (and save me from reinventing the wheel) in the following methods of electroplating an aluminium cylinder bore both for protective reasons and also restoring a worn cylinder bore back to spec. so don't need oversize pistons. This is for a homemade two- stroke engine, see http://groups.yahoo.com/group/DIY_2S/ for more information. Cylinder Bore Protective Plating: -Hard Anodizing, high silicon aluminium, easiest -Electroless Nickel-Phosphorous/NiP: can do it in one step, hardness close to chrome -Nickel Cobalt: not sure if can get enough cobalt in nickel to be useful? -Nickel/Suspended Particles: trapping hard particles suspended in solution into nickel plating -Nitride: similar to how some metal tools are protected, not sure if possible/practical -Hard Chrome: tested and proven but an involved process Plating Cylinder Bore Back to Spec., need thick deposit, these are some metal I thought would be possible: -copper -nickel -iron -zinc -tin: have heard of pistons being plated with tin for less friction Brock |
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