how to sharpen scan and cut machine blades

If a knife edge cannot carry the applied load, it will quickly deform to create enough area for load support. The material strength of the blade is then opposed by the force being applied down through the knife holder over the area that the knife edge creates against the anvil roll. When a knife is pneumatically loaded against an anvil, the force of the contact is applied back up to the blade tip. Usually, a pneumatic-powered knife holder applies the force against a hardened anvil roll. Previously, we have discussed how crush or score cutting uses brute force to penetrate the material with a knife. the type of finish required for the blade.Īnd without further introduction, let us begin with the crush cut knives and their resharpening process: Impact on Crush Cut Knives.There are some considerations to be had depending on: The sole purpose of resharpening is to restore the original geometry and finish of the blade. However, knife resharpening can impact slitting knives in different ways. It also includes the crush cut knives that do not seem to be sharp either. Yes, this includes the bottom knives that do not seem to have a sharp cutting edge. Therefore, resharpening all circular knives is a critical step to take to ensure a good cutting edge quality. Since we have two or more moving metal parts in contact with each other, they get worn out. On the other hand, crush cut application knives come in contact with the hardened anvil roll. In shear slitting, the top and bottom blades are in contact with each other. There will always be moving metal parts that are in contact with each other regardless if it is shear or a crush cut. Knife Resharpening and Edge Quality Overview But first, let us review some basic slitting concepts that will come into play in this process. We will also discuss the impact this process has on the final cutting edge quality. In this article, we will go over some of the primary considerations you must have when resharpening your slitting knives. Welcome to our blog post about how knife resharpening can impact blade life and cutting edge quality.

Contact a DIENES engineer to discuss your unique application. DIENES cutting solutions are as diverse as your applications.

How to sharpen scan and cut machine blades