Cutting

Insert selection coating level.

Cutting force USES chip control insertion to release the cutting.

Heat the coolant through the boring bar or bracket. If there is no coolant, use the workshop air and coating tools. Use a coolant through the boring bar.

Insert breakage

Cutting condition reduces cutting depth. Reduce the feed rate.

Insert a larger Angle radius

Some check holes to ensure that the drill’s diameter is deeper than the drill hole.

Too rough

Cutting condition reduces feed rate. This speed is too big for the radius of the nose.

Insert a larger Angle radius.

The feed rate (IPR) should not be greater than 1/2 of the nose radius.

chatter

setting

The insert center is set up above. Change the speed of the machine.

The suspension ratio of carbide should be less than 8x diameter.

The clamping length shall be at least three times the diameter of the boring bar.

The boring bar selects the largest diameter rod, which will bear the required diameter.

The cone is bigger in the back

The cutting force may deflect the stem below, causing the hole to widen.

Building edges on the edge of the building will make the hole bigger until the edge of the building breaks and the hole will become smaller.

program

If the taper is consistent (not from the chip package), then the program can be changed to bring a cone in the opposite direction, resulting in a straight hole.

Small cone back

Chip packaging

If the boring bar is too large to allow the chip to leave, then the chip may be wrapped in the insert, causing the rod to deviate from the hole.

program

If the taper is consistent (not from the chip package), then the program can be changed to bring a cone in the opposite direction, resulting in a straight hole.

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