Thread turning to avoid disorderly buckling and binding

Common thread cutting methods

                       Milling Thread                                                    Turning Thread

 

Technological process
Turning end face one turning thread major diameter (d < nominal diameter) one turning undercut (< thread minor diameter) → chamfering → turning thread (multi cutter turning)

Installation skills
Installation of workpiece
Select the proper clamping position.
There is enough clamping force.

 

Mount the installment
Key points of installation: the angle dividing line of the tool tip is perpendicular to the axis of the workpiece. cnc turning part

Machine tool adjustment

For thread turning
Adjust the spindle speed
Adjusting pitch

 

 

Notice

1. Avoid "random buckle"

[if the latter knife fails to fall into the thread groove of the turning method of the former knife, the workpiece will be scrapped. ]
If the screw pitch is not the integral value of the workpiece pitch, it must be turned by turning forward and backward
The relative position between the workpiece and the spindle cannot be changed.
If the tool is changed or grinded, the tool should be adjusted again. cnc machining part
2. Prevent "stabbing"
[the distribution of machining allowance is unreasonable, or the allowance of one turning is more reasonable, which makes the two sides of the thread rough and even chipped. ]
Workpiece and tool clamping
Reasonable allocation of allowance and selection of proper feed method
Withdraw the knife in time.