by Bob Warfield | May 3, 2023 | Blog, CNC Manufacturing & Job Shops, Feeds and Speeds, Software, Tools and Techniques
What is cutting force? Cutting force is the resistance of the material being cut against the intrusion of the cutting tool. The force directions and strengths can vary based on the different machining process such as turning, milling, drilling and so on. Cutting...
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by Bob Warfield | Apr 13, 2023 | Blog, CNC Basics, CNC Manufacturing & Job Shops, Feeds and Speeds, Tools and Techniques
Hello CNC’ers! Today, we’ll discuss tool wear and how you can diagnose it for a job. In general tool wear is loss of material from a cutting tool. Wear entails a loss in the volume and geometry of the tooling. Wear of tools is caused by several...
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![Corner Radius End Mills [Bull Nose]: Guide](https://www.cnccookbook.com/wp-content/uploads/2023/03/img_6407a873c2362.png)
by Bob Warfield | Mar 7, 2023 | Blog, CNC Basics, Feeds and Speeds, Tools and Techniques
What is a Corner Radius Endmill (or Bull Nose end mills) Corner radius end mills also called bull nose end mills) are normal square end mills that have a slight radius ground into their edges. The radius helps distribute cutting forces evenly to prevent damage to the...
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by Bob Warfield | Dec 27, 2022 | Blog, Feeds and Speeds, Tools and Techniques
Whenever we need to affix a part to a shaft, such as a gear or pulley, keyways, keys, and keyseat work or woodruff work comes into play. So, let’s begin by getting our terminology straight. A Keyway is a slot of some kind that is used to align the part on...
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![Carbide Drill Speeds and Feeds [Plus Tips and Techniques]](https://www.cnccookbook.com/wp-content/uploads/2022/11/img_63795ba00e2e2-1080x675.png)
by Bob Warfield | Nov 19, 2022 | Blog, Feeds and Speeds, Tools and Techniques
Recently I had breakfast with a gentleman who was telling me his tale of woe. He had to drill hundreds of holes in some steel electrical panels on his CNC Router, and things were not going well. Tool life on his drill bits in particular was terrible. ...
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![CNC Router Software: Easy Guide [ Beginner to Advanced ]](https://www.cnccookbook.com/wp-content/uploads/2022/10/img_635976e28def5.png)
by Bob Warfield | Oct 26, 2022 | Blog, CADCAM, CNC Basics, CNC Router, Feeds and Speeds, GCode, Software, Tools and Techniques
Introduction This article will walk you through the basic types of software for CNC Routers. Most folks will not use all of the cnc software described here. But it’s good to know what is out there in case you do have a problem one of these cnc software packages...
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by Bob Warfield | Oct 24, 2022 | Blog, Feeds and Speeds, Tools and Techniques
Each year we survey CNCCookbook readers (that’d be you, gentle reader) about which End Mill brands they like to use. The information is helpful to anyone who needs to shop for end mills. After all, in most markets we know who the most popular brands...
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![Ball Nose End Mill [Easy Guide to Ball Cutters]](https://www.cnccookbook.com/wp-content/uploads/2022/09/img_632b3c2348fca.png)
by Bob Warfield | 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]](https://www.cnccookbook.com/wp-content/uploads/2022/05/img_627aedb4b7c5e.png)
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 ]](https://www.cnccookbook.com/wp-content/uploads/2018/07/img_5b4e249ef1f99.png)
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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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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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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