Originally Posted by
tbaker2500
So, was it my cut or the tool? Is an aluminum helix EM unsuitable for steel? Is it that this type of carbide is too brittle? Is carbide too brittle for 1018? If so, why does a 1/2" and a 1/32" work fine?
Thanks for the help guys!
Tom
When you say aluminum helix I'm assuming you mean high helix ? if so then it won't work on steel , if it's rated for aluminum then it's the wrong tool for the job . Also a 2 flute is the wrong tool for the job , use a 4 flute , better yet get a coated 4 flute endmill or go one step further and get a coated variable flute . A quality variable with cost a bit more but the life of the tool will equal to at least a couple of standard mills , and they can handle much greater feed and speed rates .
If your using end mills from quality venders then check their websites for their recommended speeds and feeds , even though you can have 5 different brands of the same end mill style it doesn't mean that they can be run at the same rates .
A poet knows no boundary yet he is bound to the boundaries of ones own mind !! ........