We all know the typical wide belt machine and how it works. That process has been the same for a long time and has just been accepted as the norm. Cutting metal creates a bur and that must be removed for a number of reasons. Having the fresh cut edge causes issues with just handling the parts in more ways than one. The risk of people getting cut in assembly or later by the finished product is one of the most worrisome. Secondary to that is the bur tends to scratch other parts in stacking or just general movements around the shop. That leads to secondary operations or part rejection that can be avoided. Below is a close view of before and after just to show what the bur looks like in this parts case. The parts are identical with the left being fresh from the cutting operation and the right being after bur removal.