Removal of black discoloration layer [barrel polishing]

Solving problems through oil removal (degreasing) and optimization of processing conditions! Introduction of a case study on barrel polishing.

This is a case study on the removal of black discoloration layers. We received an inquiry from another barrel polishing company stating, "We had barrel polishing done, and while the burrs were removed, the surface of the item was delivered discolored black compared to before the polishing. We cannot deliver it to our customer in this condition, so is there any way to restore the material's color?" We performed barrel polishing at our company, removing the black discoloration layer and returning it to the original material color. Depending on the type and amount of oil on the raw material before barrel polishing, as well as the polishing conditions, dirt can sometimes adhere to the surface. This issue can be resolved through oil removal (degreasing) and optimization of processing conditions. *For more details, please refer to the PDF document or feel free to contact us.

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