Normal wear of any type of material can cause blade failure. Normal flank wear is the most popular form of wear because it is the most predictable tool failure type. Flank face wear is generally very uniform, it is with the processing material wear cutting edge and gradually emerged, similar to the blade blunt.

    

    When the workpiece in the hard subtle inclusions or hardened materials cut into the blade, there will be normal flank wear. The causes of this wear include abrasive wear at low speeds and chemical reactions at high speed cutting.

    

    When recognizing normal flank wear, it is found that a relatively uniform wear is formed along the cutting edge of the blade. Sometimes, the metal on the workpiece will scratch the cutting edge, exaggerated the apparent size of the blade wear marks.

    

    In order to slow down normal flank wear, it is important to use the hardest blade grade that does not occur with microblowers and use the lightest cutting edge to reduce cutting force and friction.

    

    On the other hand, the rapid wear of the flank is something people do not want to see, because it will reduce the tool life, can not reach 15 minutes of typical cutting time. Precipitated hardened (PH) stainless steel, beryllium copper alloy and tungsten cemented carbide after heat treatment, as well as in cutting non-metallic materials such as glass fiber, epoxy resin , Strengthen the plastic and ceramics, often appear rapid wear and tear.

    

    The signs of fast flank wear are similar to normal wear. In order to correct the rapid flank wear, it is important to choose a more wear-resistant, harder or coated carbide blade material grade and make sure to use the appropriate coolant. Reducing the cutting speed is also very effective, but this does not meet the production needs, because it will adversely affect the processing cycle.