Num1bigguy
Plastic
- Joined
- Mar 28, 2018
Hi I am new here. I browsed a few posts, but was curious that if I posted some specifics if the answers would vary slightly. I currently have a piece of 1/2 inch thick by 33" wide by 38" long piece of stainless attached to my sacrificial aluminum subplate, in my FADAL 6030 circa 1995 Machine. I need to drill and ream 410 .755 holes in this plate and there will be 20 more plates to do if I can pull this off. I am for the most part used to programming/cutting aircraft grade aluminum, that we use for prototype plastic injection molds. I programmed this job trying to baby things a bit, because of the toughness of the stainless. My center drill made it through all 410 hole locations with no issues. My first drill to be a pilot is a 3/8 drill. Next it steps up to 23/32 drill and finishes holes with a .755 reamer. There is also a critical chamfer on all holes for welding later. The 3/8 drill did about 10 holes successfully at which point it began to sound worn. I removed the drill and sharpened a fresh edge on it and it failed again 1 hole later. Lather, rinse, repeat, with same result. I've read posts saying use this drill or this coolant. My machine does not have a coolant thru spindle. I use extreme-cut 250c coolant kept around 8%. Does anyone have some information that may help me to get to the dance? I also have 4 other machines to stay on top of daily so it would be ideal to not have to babysit the machine. I'd like to be able to walk away from the machine and have it not go to crap as soon as i turn my back to it. I would like to avoid using something other than my machines coolant. I've been able to keep this coolant at the proper mixture, and with skimming the coolant lasts for years. I don't want to contaminate it. Any information is greatly appreciated as I'm currently stuck.
Specifics
5/8 Drill depth
.100 peck
450 rpm
2 IPM
flood coolant, and machine is enclosed
I was trying to get by with my ding dong brand drill bit, at least for the show and tell for today when customer comes to check on progress, or lack thereof. Thanks in advance.
Also I've only been programming for about 5 years and I'm using Cimatron 12 and also using their automated drill for these toolpaths.
Specifics
5/8 Drill depth
.100 peck
450 rpm
2 IPM
flood coolant, and machine is enclosed
I was trying to get by with my ding dong brand drill bit, at least for the show and tell for today when customer comes to check on progress, or lack thereof. Thanks in advance.
Also I've only been programming for about 5 years and I'm using Cimatron 12 and also using their automated drill for these toolpaths.