Hi CNC Experts
Firstpost
I am a design engineer and have no experience with machining , but i am working on a project to make an excel calculator for milling sprockets
what i have learned so far is in order to calculate milling times we need need SFM and FPT based on Material and tool (i guess this is how mastercam do it )
so my approach is to get feed rates and rpms from these SFM and FPT then dividing total path length with feed rate and get milling time (then will add finish pass, lead in/ lead outs)
So i collected SFM and FPT for few material that i have noted down (for HSS inserts) but when i plug in those values i get really high mill time with stainless steel does my sfm and fpt are wrong
also suggest if this is right approach to go
Thanks