Customers are always asking me to estimate the cycle time on my automated drilling machines.
I've come up with a little e-mail tool I send them to guestimate the cycle time and would love the group to tweak it a bit.
I tell them to figure out the cycle time, follow these steps:
***A drill needs to travel at least 130% of it's diameter plus the thickness of the part to puncture through... So a 1/2" plate with a 1/2" drill would be categorized as having a 0.650" "DEPTH" below.
DEPTH divided by FEED = ROTATIONS. ROTATIONS divided by RPM = MINUTES. MINUTES multiplied by 60 = SECONDS it takes for the process.
Add in stroke up to product time Add in stroke back to home time Add in clamp and unclamp time Add in any human factors, etc. Add in time for potentially dull tooling, etc. Add in time for less than adequate machine thrust, etc.
We use the following charts to estimate these numbers:
Thoughts? Tweaks? Various condescending political thoughts? ...Well, maybe not that last one, but given the group's content lately, I figured I'd ask.
Regards, Joe Agro, Jr. (800) 871-5022
01.908.542.0244 Automatic / Pneumatic Drills: