SPEED AND FEED
SPEED AND FEED
(OP)
Hello,
I am beginning is this huge world of engineering and I am looking for values of speed and feeding depending on material, tool, milling or lathe, ....
I found a few things of internet but the values for a same "aspect" are quite different
So, if someone has a reliable site, tables, programs or anything else ... it will be VERY appreciate.
THANKS
I am beginning is this huge world of engineering and I am looking for values of speed and feeding depending on material, tool, milling or lathe, ....
I found a few things of internet but the values for a same "aspect" are quite different
So, if someone has a reliable site, tables, programs or anything else ... it will be VERY appreciate.
THANKS





RE: SPEED AND FEED
http://dl.winsite.com/bin/downl?14500000037133
Manufacturing Freeware and Shareware
http://mrainey.freeservers.com
RE: SPEED AND FEED
High speed steel has its own values, carbide has its own values as well..All the different carbide insert manufacturers have their own data for their tools..Even all of their data that they give with their tooling is still very broad..They typically give you a range of speeds and feeds and then its up to the machinist to "fine tune" the operation.
Experience is everything when it comes to feeds and speeds..How much horsepower you machine is, How much overhang your tool is sticking out, how hard the material is that you cutting..cutting fluid or no cutting fluid, what surface finish is required..There are so many variables, that even any chart or website of cutting data that you find will still only be rough starting points..A lot of playing around will help find the most efficient speeds and feeds.
Having a library of books on machining will be very usefull..
Brent
RE: SPEED AND FEED
RE: SPEED AND FEED
The rigidity of the machine and tools is a most important factor. There are few brand new machines around. Operators don't grind the most perfect cutting angles. Tool overhang coud be too large. The type of chips comming off when machining can cause delay (long chips are dangerous). Hardly anything ever happens under ideal conditions in a machineshop.
An experienced operator working on a specific machine tool doing a specific job having the proper equipment and not being interfeered with by supervisors and this not being the first day of the week (Monday), is often the answer to what is best.
Want more variables?
RE: SPEED AND FEED
RE: SPEED AND FEED
RE: SPEED AND FEED
If Hossar is looking for absolutes, as to feeds and speeds, he HAS to only be using inserts, not high speed steel.
When I was machining, my grinds of high speed steel, though not the typical, would remove much material, with most of the heat removed with the chips, the workpiece nearly ambient, and the chips in elbow macaroni sized pieces.
As to stringers, tell me about it. With a stainless piece, a long som'bitch came out and severed a tendon on my left hand in a recessed cut, squatting down to cut the feed at the right time.
You know how to grind a tool, you got it dicked. You are trying to do, as Hossar must be, a feed and speed on a "machining center", you are using inserts, the operator is just a piece feeder.
To get tolerances, you must use the same inserts the machine was designed to use.
You guys ARE aware that there is no such thing in the US as a "machinist", aren't you?
Stock feeders is what they have been reduced to. Put a billet in, a finished piece falls out.
Bitter old man that I seem to be, there are still some genuine machinists.
But they don't work for companies like Hossar must.
Ah, wel,
Cheers,
George
RE: SPEED AND FEED
Best to start conservative and then bump it up.
If it's on cncs crank up the feed overide.
I like that monday morning variable
RE: SPEED AND FEED
RE: SPEED AND FEED
Enter your tool size ,how deep,internal or external coolant,material and hardness ECT .It will recomend the most recomended to the least.It will give you speeds and feeds ,HP,IPM,IPR,LBS,Time in cut,and the number of holes.If you click on ECO button it will tell you your cost per hole.This softwear also can be used for tapping,milling and thread milling. I hope it helps.
RE: SPEED AND FEED
RE: SPEED AND FEED