Drilling Monel 400
Drilling Monel 400
(OP)
I am trying to drill 25mm holes through 40 thick Monel 400.
Has anybody got any tips i have tried high speed drills, Allied maxcut drills and U-Drills.
Has anybody got any tips i have tried high speed drills, Allied maxcut drills and U-Drills.





RE: Drilling Monel 400
I would get with a big mill supply house or a drill bit provider and get the drill bit they recommend.
Some things you to lookout for:
Use a ridged setup.
Use a machine feed. No stops and starts.
Watch your cutting fluids, if it is sulfurized make sure the part is thoroughly cleaned after machining.
Here is good starting point for drill bits and information.
http://www.guhring.com/
RE: Drilling Monel 400
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RE: Drilling Monel 400
RE: Drilling Monel 400
Consider the cost of a solid carbide drill around 25mm, this will not be cheap. U-Drill is a copyrighted Sandvik drill, all other indexable insert drills are just that and not U-Drills.
For small quantities s/c maybe the answer certainly with thru-coolant. Run around 25 M/Min Vc with a feed of around 0.08mm/rev
Use a U-Drill or the new CoroDrill 880 for larger quantities.
RE: Drilling Monel 400
RE: Drilling Monel 400
RE: Drilling Monel 400
I did this with the Corodrill 880 of Sandvik Coromant.
I used the GM geometrie with grade 4044.
Cutting speed 100M/min and a feed of 0,06mm/rev.
All this with coolant outside!!
Chips where good.
RE: Drilling Monel 400
I am sorry you did not get the results you wanted .I can normaly beat any Guhring drill in most MFG applications.If you would like to try again I would be more than happy to work with you .jjv32@aol.com I work for Titex ....WI,IL
Emiltlucy
As far as the drilling application you can use a A3385TFL from Titex run it at about 100 sfm and .0063 IPR 2.4IPM 10% sol coolant.The HP it will take is about 5.2 and you should get about 80 holes.Make sure your setup is ridged.
RE: Drilling Monel 400