Drilling Hardened Stainless Steel

[stewsbs]

Anybody have any tips on drill

Anybody have any tips on drilling Hardened Stainless Steel I am using Cobalt drills but they are getting worn out very quickly.

 

[smchaplin]

are you using oil? and going m

are you using oil? and going medium speed?

 

[stewsbs]

Using oil but was told to use

Using oil but was told to use high speed!

 

[kghost]

NOPE!!

Go at a speed in whi

NOPE!!

Go at a speed in which the drill cuts the metal.

Same rule applies to any metal machining...........

 

[kainon]

the harder the metal the slowe

the harder the metal the slower the speed

 

[sandkicker]

""Speed and feed" The

""Speed and feed" The mantra in machine shops.
For any given material, there is a narrow range of "speed" (drill RPMs) and "feed", (pressure to advance the tool) that works. Start slow and light force... increase both gently until you start to "make chips". For small jobs, I prefer WD40 as a drill/tool coolant."

 

[guyjg]

WD40 is flammable; a little to

WD40 is flammable; a little too much heat and POOF! I use a drop of engine oil and an ice cube. You can drill thru a big ice cube and squirt oil under it w/a pump oiler.

 

[bschip43]

"Guy has it down,,I do the sam

"Guy has it down,,I do the same thing cool & lube all at the same time,,,works everytime...regular oil works best with this setup"

 

[jansteam40]

"when i was engineering for th

"when i was engineering for the royal navy there was a simple formula for turning and drilling it took into account the material being drilled and the diameter of the drill , i will find it in my paper work and post it for you"

 

[kainon]

"Here is some Drilling info fr

"Here is some Drilling info from a Henry Ford Shop Theory Book.

drill

 

[kainon]

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