Turbocharged
Plastic
- Joined
- Sep 1, 2022
So, I'm getting into running insert type carbide drills, and the recommended speeds/feeds just seem like they are just way too fast. I tried the recommended speeds/feeds on a bigger style (7/8) with a smaller holder, but it sounded awful (ear deafening squeal). I checked the hole afterwards and it looked good ... it was nice and smooth. Then I checked my insert for wear, and it still looked brand new. To get through my holes I ended just playing with the spindle speed switch and feed rate switch until the drill sounded half decent.
My question I guess is ... do I need to consider any other metrics? If so, can you list them and any associated formulas to help.
I'm going to guess that my holder length for my next drill may impact this but I'm unsure.
My Next Tool:
Drill: GEN3SYS® XT Series 11 (5XD)
Insert: C1 AM300 (7/16 dia)
Holder: Extended length (6 in projection) side lock holder
Materials to be cut: Nodular cast 200bhn & Grey cast 250bhn
Thru coolant: Yes
Fixturing: Extremely Rigid
Machine: Doosan nhp4000 horizontal
My question I guess is ... do I need to consider any other metrics? If so, can you list them and any associated formulas to help.
I'm going to guess that my holder length for my next drill may impact this but I'm unsure.
My Next Tool:
Drill: GEN3SYS® XT Series 11 (5XD)
Insert: C1 AM300 (7/16 dia)
Holder: Extended length (6 in projection) side lock holder
Materials to be cut: Nodular cast 200bhn & Grey cast 250bhn
Thru coolant: Yes
Fixturing: Extremely Rigid
Machine: Doosan nhp4000 horizontal