FEEDS AND SPEEDS

Ball Nose End Mill [Easy Guide to Ball Cutters]

by cncdivi | Sep 21, 2022 | Blog, CNC Basics, CNC Router, Feeds and Speeds, Tools and Techniques

What are Ball Nose End Mills? A Ball Nose End Mill, also called a “Ball Cutter”, “Ball End Mill”, or a “Ball Nose Mill” is an End Mill whose tip is ground in the shape of a half sphere. Ball End Mills are always center cutting, so...

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Work Hardening & Strain Hardening [Machinist’s Guide]

by Bob Warfield | May 12, 2022 | Blog, Feeds and Speeds, Tools and Techniques

What Does Strain Hardening or Work Hardening Mean? Strain hardening, or work hardening as it is more often called, is the hardening of metal by plastic deformation.  It can be a problem or a benefit in metalworking.  Learn what it is and how to avoid or...

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Chamfer Mill Speeds and Feeds [ Chamfering Tool Guide ]

by Bob Warfield | Apr 26, 2022 | Blog, CNC Basics, CNC Router, Feeds and Speeds, Tools and Techniques

Chamfer Mill Speeds and Feeds [ Chamfering Tool Guide ] The Chamfer Mill or Chamfering Tools are an essential part of any CNC’ers tooling.  They make it easy to put that nice chamfered edge on parts that is such a signature for CNC machined work.  This Easy...

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Depth of Cut & Width: Winning Feeds and Speeds

by Bob Warfield | Mar 29, 2022 | Blog, CNC Basics, CNC Manufacturing & Job Shops, Feeds and Speeds

Recently, I had a question from a reader that I wanted to talk about: I’ve got a question I was hoping you could answer.  It seems like a lot of emphasis is put on calculating feeds and speeds based on chip load.  I understand how that could be a metric, but...

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Get Goldilocks Feeds and Speeds for Best Speed and Longest Tool Life

by Bob Warfield | Jan 8, 2022 | Blog, Feeds and Speeds, Software, Tools and Techniques

Many machinists, especially brand new and hobby machinists, probably think performance and tool life don’t go hand in hand.  You choose one or the other and let the chips fall where they may (sorry!).  But it turns out that there is actually a middle...

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Chip Thinning [ Free Calculator ] & Rubbing

by Bob Warfield | Jan 5, 2022 | Blog, CNC Basics, Feeds and Speeds, Tools and Techniques

Note:  Chip Thinning & Rubbing is Lesson 3 of our Feeds and Speeds Master Class.  Sign up by clicking the link. Chip Thinning and Rubbing: two reasons why slowing down may not lead to longer tool life. A lot of Beginning CNC’ers back way off recommended...

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