Hardness is the tool material should have the basic characteristics of the tool from the workpiece to cut the material, the hardness must be compared with the workpiece engraving machine flat knives use tips

1) material on the line speed is not high: As we said above, in the processing of copper, aluminum and other materials to use flat knives for processing. This is because such materials in the processing, the linear speed requirements are not very high, the linear speed of the tool life is not very obvious impact. At this time we use flat knives for processing.

2) finishing, some locations need to use flat knives for processing: their grinding of the nose nose knife is generally more difficult to guarantee, it can not be finished. Flat knife accuracy is relatively better guarantee. In addition, flat surface, vertical wall and the intersection of the right angle, etc. can only use flat knives for processing.