Metal Cutting

Exploring the: Metal Cutting Zone


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Black, Pitted Areas on Anodized Parts

We anodize aluminum cookware and have recently been getting parts with black pits scattered all over them. What is this and how might it be happening?


Humidity Levels for Powder Application

Could our problems with powder application be extremely low humidity levels during the winter?


“Water-Break-Free” Test

What is a “water-break failure” test?


Stripping Copper-Nickel-Chrome

Is there a method for stripping copper-nickel-chrome deposits from rejected zinc diecastings?


Water-Wash Spray in Cold Climates

Can we safely install a water curtain spray booth at a factory in Russia? Won’t the spray booth water start to freeze when the temperature reaches 0ºC? Is it not more advisable to install a dry filter booth in this climate?


Treating for BOD from E-Coat

What is the most effective treatment for reducing BOD anolyte? Is a small carbon absorption unit on the overflow line the solution?


Sealing Parts After Two Months

Is it possible and practical to seal hardcoat anodized (Type III) parts that have been in storage for about two months?


Reclaim in Batch Booth

Is equipment available for collecting and re-using powder from spray-to-waste, open-end-booth applications?


Stripping Tin from Copper

I recently received some old tin-plated copper to be replated. What methods can remove the old tin layer without harming the copper?


Pollution Control for Anodizing

What pollution control equipment do you recommend for a small aluminum anodizing operation with a 500-amp rectifier?


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