Still Confused with Conventional and Climb Milling

Yeah, the one on the right is a head scratcher. You obviously have to feed the work piece into the cutter or it has nothing to cut. It's science, but it ain't rocket science. ;)

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Tom
 
It may be worth mentioning why climb milling is used at all.

Lots of disadvantages are mentioned in the thread such as pulling the part into the cutter etc..

Climb milling can only happen when the tooth is off the workpiece before engaging & this is the advantage. It allows the tooth to engage at full depth at the start of it's cut. This means that it does not have to rub on the workpiece until it "bites". This saves a lot on tool wear.

The other advantage is that the pressure on the tooth as it leaves the finished face reduces to nothing on exit, it imitates a light finish cut giving a better finish. Whereas conventional milling has all the rubbing and highest pressure at the finished face on the workpiece.
 
My grump is most of those illustrations do a lousy job of showing what is moving. Is the material in motion agains a stationary cutter or is the cutter in motion against stationary material. Assume the wrong one and you think its climb when its conventional.
 
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