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topic 5638

Need Recommendation for Deburring Double-Helix Shaft



I need a recommendation on deburring media. The product to be finished is a 6" x 0.25" shaft with 4 helical grooves cut into it (sort of like a yankee-drill shaft I believe). The groove dimensions are 0.120" in width and 0.040" deep. In smoothing-out this double-helix shaft, what type, shape and size of rock would you recommend...other low cost deburring methods welcome, too.


Matt Moon
Cleveland, OH USA



You did not say anything about the metal or if you have to hold and tolerance or RMS finish. Fastest way is to select the lastest, coarsest ceramic media possible; however, that may take off too much material and you may end up with a rougher part surface finish than what you started out with. If your part is non ferrous, select a plastic based media. If you do not have much of a burr or you are looking for a superior mirror finish and you do not want to remove any material, you can use a dry polishing process media. Normally, burrs on the parts you describe are on O.D. surfaces only; therefore, I would suggest maybe a small 3/8 inch ACT (angle cut triangle)in a fine to medium grade ceramic. Even with this small a media you will have some problems sorting parts from media after processing; therefore, you may want to go to 2,3,or 4mm ACT which we have in house.

tony kenton
AF Kenton
Hatboro, Pennsylvania

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