A machinist is turning a steel shaft on a lathe and notices chatter marks on the finished surface. Which corrective action is most likely to eliminate the chatter?
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A
Increase cutting speed and depth of cut simultaneously
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B
Reduce cutting speed, increase rigidity by shortening tool overhang, and check for loose gibs
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C
Switch to a larger nose radius insert to spread the cut
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D
Apply more coolant and increase feed rate