How to sharpen guillotine knives
Category : BLOG
The processing of materials requires them to be properly sized already at the stage of preparing the raw material. One of the most frequently used solutions is guillotine cutting, i.e. it takes place with the use of blades lowered in the vertical plane, which penetrates the cut structure due to pressure. An important element of this type of machines are the cutting edges used in them, which must retain their geometry and at the same time guarantee the appropriate strength. As they wear out during operation, their shape must be reproduced by the process of sharpening guillotine knives. Let’s see what it looks like.
What is involved with the use of guillotine blades?
The geometry of the guillotine blades and the type of alloy they are made of depends on the type of materials being cut. In the case of cutting cellulose products, as well as products of the printing industry, they can even be made of tool steel, and their sharpening consists in obtaining an inclined edge at an angle depending on the hardness of the products handled. Similar rules apply to cutting plastics and wood-based products, e.g. veneers. When it comes to cutting sheet metal, the material used to make the knife must be harder. It can be, for example, high-speed steel, but also an alloy with the addition of cemented carbide. The blades are often coated to increase hardness. For cutting metal, the angle at which the knives are sharpened is usually close to 90 °.
Who can sharpen guillotine knives?
Sharpening guillotine knives requires experience and the use of appropriate equipment that will be able to plan the surface of the cutting edge with the required precision, and at the same time handle the hardness of the material used. This service is performed only by companies with advanced metal processing facilities. For many years, MultiMasz has been producing custom-made guillotine blades for steel cutting and sharpens blades for sheet metal processing.