I am working on a job that could need about 105,000 1.5mm holes .390" deep in 110 copper bus bars.
The first 100 holes were a pure nightmare. Tried rich coolant, various speeds,feeds, pecks, and retract heights.
Equal numbers of M3 x .5 tapped holes.They tap nice, but again, drilling is "challenge"
Any great ideas?
Coolant fed drills a possibility? I see 1/16" coolant fed, seems like it could be crazy fragile.
Hate breaking $200.00 drills AND scrapping an expensive part.
My Google foo is week. Most searches pointed back to my previous posts on a similar job. That was #37 holes 1/4" deep.
That job went OK, but this job with 1.5mm holes is a Nightmare.
The #37 holes could have a broken drill punched out from the backside. Not these parts.
So any break scraps out the whole part.
Thanks Again!
The first 100 holes were a pure nightmare. Tried rich coolant, various speeds,feeds, pecks, and retract heights.
Equal numbers of M3 x .5 tapped holes.They tap nice, but again, drilling is "challenge"
Any great ideas?
Coolant fed drills a possibility? I see 1/16" coolant fed, seems like it could be crazy fragile.
Hate breaking $200.00 drills AND scrapping an expensive part.
My Google foo is week. Most searches pointed back to my previous posts on a similar job. That was #37 holes 1/4" deep.
That job went OK, but this job with 1.5mm holes is a Nightmare.
The #37 holes could have a broken drill punched out from the backside. Not these parts.
So any break scraps out the whole part.
Thanks Again!