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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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Hard chroming of plates..
OK guys.. Hopefully someone can help me out here..
We have these 4140 plates for a customer. On the print they call out for ..007 - .009 thick chrome on one face finished. So we try to get the plater to put .004-.005 over so we can grind them flat. We tried having them only putting .001-.002 over, but that never worked out well. The plater we use is having a really hard time getting a consistent buildup all over the plates.. And recently we are seeing a crap load of bubbles, and some of the plates are actually flaking on the edges. So, here is two questions to the more knowledgeable than I. 1) Is there any other type of coating that is comparable or better than chrome, that we could suggest to our customer, that would save the time and anguish of us grinding, finding out the chrome is bad, and sending the plates back to get more added? 2) If it's the chrome plater that is actually at fault, does anyone know of a good plater that is in Florida, preferably near central, but not required.. We can UPS the plates. I'll even send them out of state if need be.. Anything is better than the situation that we are in now. |
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