Machining of Hastalloy

[as200900]

Does anyone have any experience machining Hastalloy?

if so what Surface speed and depth of cuts are best?

 

[unclesyd]

You need to down load this booklet from Haynes and check page 35.

The real bugaboo with HastC is that it work hardens and is extremely wear resistant. Keep everything sharp on rigid equipment.

http://www.haynesintl.com/pdf/h2010.pdf

 

[racookpe1978]

I had very, very poor luck simply drilling Hastalloy X last year until I really slowed down the drill bit and used a little bit less pressure.

But for the number of holes I needed, I found a hand-held electric punch worked very simple, very fast, and was simplest of all.

Doesn't help you with machining, but I figure I'll throw my 2 cents in.

 

[Mattberghofttt]

The only luck I had Machining Hastelloy
.220 drill 30 SFM .004-.006 chip load
M6 roll tap 60 RPM
General milling 60-80 sfm
Tin coated carbide or multicoated ticn tialn

Thru hole coolant is very helpfull