Cemented Carbide Twist Drills Grinding (Ni-Mo Steel Cutting)

Workpiece material:Ni—Mo Steel	Parts diagram
Processing Machinery: Radial Drilling
Tools:φ20x280xMT2(Microalloy)
Conditions: Rotation speed 480r/min Cutting speed 30m/min Feed rate 0.15mm/r Depth 150mm

Results: HSS drill processing, processed out of the aperture size tolerance, reached after the switch to cemented carbide twist drills prefabricated hole reamer machining requirements.

Summary: during the processing of this material, if not cemented carbide twist drills chisel edge processing to a certain extent, the life of the cemented carbide twist drills will be halved, it is necessary to mechanical cemented carbide twist drills type grinding.

Cemented carbide twist drills cutting edge wear after processing 40 holes (Mechanical grinding and honing)

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