Knurling

[SPEEDRE]

Is it possible to do knurling with a mini mill? I may need to do it on a round piece after shaping in a 4th axis operation, mounted in a rotary table. What about using the diamond pattern on a flat surface? Comments.

[NC Cams]

If you are planning to hold the knurling tool in a collet, be advised that the bearings (if held stationary) in a mill are TOTALLY unsuited as providing backup support if you plan to the spindle as a bench press to force the knurl into the part. Too much risk of brinnelling the bearings if you apply a huge load while they are stationary.

A 4th axis spindle might be able to support the load but not the mill spindle bearings.

[ctate2000]

No, take it to the lathe .

[Geof]

Originally Posted by SPEEDRE Is it possible to do knurling with a mini mill? I may need to do it on a round piece after shaping in a 4th axis operation, mounted in a rotary table. What about using the diamond pattern on a flat surface? Comments.

With a 60 degree vee cutter you should be able to cut a knurl on either a round piece held in a 4th axis or on a flat surface; diamond, square or straight.

[SPEEDRE]

Thank guys.I guess I'll stick to the lathe.