beavers
Mechanical
- Jun 27, 2001
- 6
We have to drill a 0.020" dia., 0.250" long hole in a 0.060" outside diameter brass rod. The final product overall length is 1". Everything is done on a high production screw machine, from 10-feet long rods.
What is the best drill geometry, drill type for this application? Also, speeds and feeds to use with this drill?
Main concerns: drill life, chip removal/breaking, hole concentricity with the outside diameter (+/- 0.001"
.
We've had some success with slow-helix drills, but the results are very different from manufacturer to manufacturer. They all tend to be pulled in (and then break), because of the soft material being drilled.
Is there a reliable drill supplier (with applications engineers) in North America?
What is the best drill geometry, drill type for this application? Also, speeds and feeds to use with this drill?
Main concerns: drill life, chip removal/breaking, hole concentricity with the outside diameter (+/- 0.001"
We've had some success with slow-helix drills, but the results are very different from manufacturer to manufacturer. They all tend to be pulled in (and then break), because of the soft material being drilled.
Is there a reliable drill supplier (with applications engineers) in North America?