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The requirements for molding accuracy and surface quality are extremely high
The contour of the blade edge needs to achieve micrometer level accuracy, but it is prone to dimensional deviation due to residual stress release or thermal deformation after processing
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Severe blade wear
When processing hard materials such as SKD11 and M2, the cutting force is high and the tool wear is fast. Complex shaped blades need to balance chip removal and rigidity, with limited feed rate
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Brittle chip blockage
Difficulty in chip breaking and easy formation of chip nodules
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High cutting temperature
High speed cutting, high hardness material processing, and dry machining