Why do we machinists need a feed and speed wizardFebruary 14, 2013, 10:44 pm
February 14, 2013, 10:44 pm
September 7, 2016, 11:11 pm
Sat August 15, 2009, 4:00 pm
Tue March 28, 2017, 12:39 am
Sometimes people ask me: "I tried your calculator, and i liked it, but it seems to me a little too aggressive...do you actually do any testing?"
Well, to those I say that not only i do testing, but i run production jobs 100% calculated with my own HSMAdvisor.
Many machinists say that nothing beats an experienced operator holding his hand on feed hold button and playing with speed and feed override trying to find the "sweet spot" where cutting speed and feed rate are maximized and chatter is eliminated or reduced.
And it is correct, but not any machinist is experienced or actually knows what he is doing.
Many machinists also finish their apprenticeship program and never learn a single thing about new tooling types and materials since. They bag years of experience, but their knowledge is stuck on a level it was when they first got their license.
Also not a single person can possibly know cutting conditions for hundreds of materials and remember all of the jobs he had ever ran.
This is where tool database comes in.
Not only can you save tools to cut down and in many cases eliminate entering parameters for every calculation.
But you can (and should) save cutting data for each particular case.
A single tool entry can contain an unlimited number of cuts attached to it, so machinist never has to remember everything.
Here is a i made video of slotting D2 with variable helix hi-performace endmill.
Material: D-2 Tool Steel 200-250 HB
Tool: 0.500in 4FL Carbide TiAlN coated Solid HP End Mill
Speed: 360.0 SFM/ 2751.6 RPM
Feed: 0.0023 ipt/ 0.0094 ipr/ 25.76 ipm
Engagement: DOC=0.330 in WOC=0.500 in