Plasma cut Stainless 316 - climb or conventional milling
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  1. #1
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    Default Plasma cut Stainless 316 - climb or conventional milling

    I am using a sandvik 50mm r490 cutter - 1040 grade. Wanna get some advice to increase my tool life ... at the moment I do climb milling ... cause I thought that I wanna avoid conventional milling otherwise it creates too much heat ... which is as far as I know bad for machining stainless ... but entering the hard plama cut surface isn’t very good for the insert either .... should I try conventional milling .... or even maybe use a different tool ... maybe endmill - conventional milling ...just to get rid of the hard surface ... thanks in advance for any advice . Ben

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    I've used R390's and 490s a lot in steel with great results but have never been able to get any life out of them in stainless. Id probably just use an endmill

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    I'm kinda with the using an end mill bent too. Only thing I can add is be sure to cut plenty deep so you're cutting beyond the heat affected zone. That is of course if you have sufficient spare material to play with.

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    Conventional cut with a doc deep enough to get under the crust. Might have to go a bit slower but be sure to get under it.

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    machining plasma cut stainless is a pain and killer on tooling as it usually creates chromium carbide preciptated at the surface. one or 2 parts, find the right cutter and feed it. if mass production, id be giving them a bath of passivation soloution first to remove the crap layer.


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