Old timer told me to slow down my feed rate on aluminum. Hated hearing it but he was right.

I was running a 6061 job last week at 40 IPM and getting chatter marks no matter what. He said drop it to 28 IPM and bump the spindle speed up 500 RPM, and the finish came out glass smooth. Anyone else get stubborn about feed rates and regret it?

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eva_gibson1mo agoMost Upvoted

Watched my buddy fight a 7075 job for hours before swallowing his pride and cutting feed by 15%.