benefits of a great finish on a barrel liner

The Benefits of a Great Finish on Barrel Liners

Machining special shapes such as complex extrusion dies, or the grooves in barrel liners, is accomplished by Electrical Discharge Machining or EDM. A small wire laces through the steel, cutting it with very precise accuracy to tolerances of .0004. Parts formed using the EDM process have a very distinct color and surface finish. Smooth to the touch, the finish can be held to just a few microns and is occasionally even better than a ground […]

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