2021-03-31 20:23:03
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Reducing chatter on a Lathe
There are a number of ways to improve your results turning. Here is a unique one that saved cutting special soft jaws. The inner tube was inflated to less than 1 psi which calmed this parts tendency to ring like a bell. An indicator was placed on the face off camera to check for distortion, this turned out well and the job was finished quickly.
It is common to experience situations in your machining career like this, having a solution stored in your memory bank can be invaluable.
Here are a few tips that work alone or in combination to stop the chatter in its tracks. If one doesn't work try another. The first 3 combined help immensely when needed.
•Reduce part and tool stickout 100% helps
•Reduce RPM, 90% likelihood of helping
•Increase depth of cut (Your tool nose radius at a minimum works wonders. Use a smaller radius insert if necessary.)
•Reduce depth of cut
•Increase Feed Rate
•Decrease Feed Rate
•Modulate RPM up and down, some controls have this built in.
•Choose a better tool or insert geometry.
•Plan program around keeping the part rigid for as long as possible.
•Support- steady rest, follower rest, custom jaws or workholding.
•Special tooling like dampened adapters.
•Macguyver tricks like this inner tube, even pushing on the stock with a stick lightly can curb chatter.
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octane_workholding
1.2K viewsedited 17:23
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