L
Luke.kerbey
Guest
Hi guys,
Not posted in a while but I need some expert info on why some steels cut quicker then others in EDM. This applies to WEDM, sinker and hole drilling.
We have been doing some jobs recently where we’ve been able to directly compare cutting times of different materials and we have found a variation of cutting speeds in steels.
From my own experience and reading. The materials hardness is 100% irrespective of cutting speed and in fact it’s the material conductivity that affects speed.
My colleagues seem to think that the hardness does have a direct impact on speed. And we can’t seem to agree.
So I’m starting to lean towards that varying hardness and the minute density variation of steels have a minute change of any steels conductivity? Or also a steels purity and alloying elements are having an effect also?
Such as the way that EDM swarf could behave in certain ways when rich in chrome, that can cause flushing issues, which then slow speeds?
I’m literally taking stabs in the dark. So can anyone explain any logical reasons or technical information on why some steels appear to cut faster/slower then others? As always, all input is appreciated!
Thanks,
Luke
Not posted in a while but I need some expert info on why some steels cut quicker then others in EDM. This applies to WEDM, sinker and hole drilling.
We have been doing some jobs recently where we’ve been able to directly compare cutting times of different materials and we have found a variation of cutting speeds in steels.
From my own experience and reading. The materials hardness is 100% irrespective of cutting speed and in fact it’s the material conductivity that affects speed.
My colleagues seem to think that the hardness does have a direct impact on speed. And we can’t seem to agree.
So I’m starting to lean towards that varying hardness and the minute density variation of steels have a minute change of any steels conductivity? Or also a steels purity and alloying elements are having an effect also?
Such as the way that EDM swarf could behave in certain ways when rich in chrome, that can cause flushing issues, which then slow speeds?
I’m literally taking stabs in the dark. So can anyone explain any logical reasons or technical information on why some steels appear to cut faster/slower then others? As always, all input is appreciated!
Thanks,
Luke