Posted 05 April 2012 - 02:18 PM
Posted 05 April 2012 - 02:35 PM
Posted 05 April 2012 - 03:53 PM
Posted 05 April 2012 - 04:44 PM
Posted 05 April 2012 - 04:48 PM
Posted 05 April 2012 - 05:07 PM
Posted 05 April 2012 - 08:04 PM
I am dying to test some HSS paths on some high temp.
We are eating Ti up with them. And tool life in the hours.
Like Jeremy says, do not work harden it!
Posted 05 April 2012 - 08:11 PM
Have a job with lots of small deep radiused slots. (.12W x .6L x .900 Deep on a 1.5 radius..Belive me, in this stuff, .900 is DEEP!) Lets just say I changed lots of tools.....some every part.
If Carbide isn't an option, Cobalt drills, depending on the brand and a lot of luck, hold up rather well.
About 40 SFM
I had to roll tap 0-80's in this stuff, after heat treat..Thank God for Molly-dee!
You have my sympathy!
Posted 06 April 2012 - 02:08 AM
This might sound conservative to some but my parts are six figures easy and we don't get a setup part.
I would never recommend HSS/cobalt unless your drilling a small a286 fastener out.
Dynamic high speed tool paths work really well with superalloys. Don't be afraid to use tool inspection points. I usually put a 30 min check when hogging.
Posted 06 April 2012 - 05:50 AM
Posted 06 April 2012 - 06:10 AM
Posted 06 April 2012 - 09:10 AM