heat to chip?

[try]

Can someone help me out with this please... whenever i machine a pocket or something it gets sooo hot, i need to know what heat to chip really means, anyone help me plss

[Al_The_Man]

You perhaps need the Machinist Handbook or program like ME Consultant?
I assume you are looking for chip load etc?
Al.

[cadman]

What you are talking about is a machining strategy. You want to plan your cuts so heat produced during the cutting is carried away by the chips. This is best exemplified by dry machining, especially of injection molds.

Feeds, speeds, tools and cutting strategy are among variables that affect how successful you will be. You want to create smaller chips at a higher feedrate and need to be able to evacuate the chips from the cutting zone.

If you are having problems with heat everywhere and you are using coolant then I would first look at your tool life then examine the feeds & speeds. I don't know what you are cutting but if it's just 6061 T6 and your tools don't last very long and heat is an issue then:

1. Your feeds may be too slow
2. Your speeds too high
3. You may be using the wrong tools

Give us more info on what you are cutting and your set up.

[try]

most of our material is a-2, d-2, 4140...
step down usually .03 with a 2.0 button cutter, with a .236rad.
thats the cutter then generates alot of heat!

[planar39]

Try, i do the same as u. we go .125 dp /pass
in a pocket sitch, we use a guy with a air gun, to keep chips/heat out

drill biggest hole at first, 1.5" current

[planar39]

2" 5 fl .o32 rad corner, iskar, a2- 600sfm, 4140 500sfm
button cutter

hire strippers for optimum results

[planar39]

meant to say -button cutter? huh
is that those new curved inserts-light cuts -very hi speed