If you cut slugs and then part them off, you'll waste the bar ends, and the rule of thumb is, the shorter the bar, the more you waste. The skinniest parting blade I have is a Sandvik that's 0.084" wide. You wrote: "At that size the amount of time and material lost from cutting a bar into 200 thin wafers would be ridiculous, so I'd like to cut them into slugs and get a few parts out of each."ĭo you think you will waste less material slicing them off the bar with a parting tool? Use the scientific method like they taught ya in grade school you’ll figure it out. If the tolerance is open go for it, tight tolerance not so much. Nothing is set in stone, risk/reward for how many parts you can run vs rigidity. Start at 6”, if it doesn’t chatter keep adding an inch and see when it acts up.
Just write a sub program that runs the whole part and adjust the # of loops depending on what stock length you end up with. Eat up the drops that would end up in the bin instead of being parts. Just grab onto an 1/8” or so, let them pile up and swap collets when you run out of the full cut lengths. You can bore a separate emergency collet for the 2 ish inch drops you end up with leftover. So for 2” bar anywhere from 6-10” should be safe. What kind of collet? 16c? So stick 2” into the collet for max rigidity/ safety So im hearing you want to run a collet because thats whats stuck on the draw tube? Or should I get the broom ready and spend a day cleaning up around the saw? What would be a reasonable length to have engaged in the chuck and how much could I safely leave sticking out? I have some 3" step collets and they're about 1-1/8" thick. In my mill I cut them into 4" pieces and using a slitting saw to part off I was able to step down and get 5 or 7 assemblies out of each before I reached the vise. At that size the amount of time and material lost from cutting a bar into 200 thin wafers would be ridiculous, so I'd like to cut them into slugs and get a few parts out of each. There are two parts in this assembly, one is about 1/8" thick and the other is 3/16", 1.95" finished OD with a 1" hole through the middle, and I need 100 assemblies total. Problem is these lathes have a 1" bore, and these parts are made from 2" bar. I finally managed to get my Emco 220P lathes running and would like to turn them loose on this job. I have a batch of 6061 parts to make that I have always done on my mill despite being obvious lathe parts.
0 kommentar(er)
