Turn ball screws have the following 5 advantages:
A. Compared with the deep-cut slow-advance process method of grinding wheel grinding, the production efficiency is increased by about 5-10 times.
B. Only 90 degree V-grooves can be made on the workpieces. When the pitch is large, the axial cutting force is large, and it is not suitable to cut large pitch workpieces, generally cutting the pitch workpieces below 6mm.
C. The workpiece speed is high during turning, and the cutting resistance of hard turning is relatively large. For slender parts, it is easy to produce vibration, bending deformation, and cannot be turned. Therefore, the turning method is suitable for processing workpieces with a pitch of less than 6mm and a length of less than 1m.
D. The blade price is low.
F. The lead screw after slotting still needs semi-finishing and fine grinding.
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Materials：42CrMo;
Hardness：HRC60-62；
Selected Insert：BN-S20 SNGN090404；
Cutting Condition：Vc=90m/min，Fr=0.1mm/r，ap=4.5mm；
Dry Cutting
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|
Insert Materials |
Cutting Speed |
Cutting Depth |
Failure Mode |
|
Halnn BN-S20 |
90m/min |
4.5mm |
Normal Wear |
|
Other |
65m/min |
0.5mm |
Damage Broken |