Author

James Harvey

James A. Harvey is a machinist and moldmaker who has worked in shops across the U.S. for nearly 40 years. Harvey’s Shop Operations column for Cutting Tool Engineering magazine is adapted from information in his book “CNC Trade Secrets: A Guide to CNC Machine Shop Practices,” published by Industrial Press Inc., South Norwalk, Conn. The publisher can be reached by calling (888) 528-7852 or visiting www.industrialpress.com. By indicating the code CTE20OFF when ordering, CTE readers will receive a 20 percent discount off the book’s list price of $29.95.

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Article April 15, 2016 James Harvey

Getting a grip: Drilling Performance

There are numerous advantages to rigidly holding a workpiece: feed rates can be increased and cutting times reduced, cutters last longer and impart finer surface finishes, and more-accurate parts are produced. At trade shows where vendors offer demonstrations, you rarely see flimsy, difficult-to-hold parts being machined.

Article March 15, 2016 James Harvey

Avoiding machine crashes, part 2

Presented this month are more programming tips to help prevent machine tool crashes.

Article February 15, 2016 James Harvey

Avoiding machine crashes

Everyone crashes, I was once told. It's likely true. However, not all crashes are created equal. There are fender benders that just break small tools, and then there are head-on collisions that ruin much more—including your day. CNC machine crashes are relatively easy to avoid. They often occur during setup and debugging.

Article January 15, 2016 James Harvey

Plan ahead

Presented here are more tips and tricks for proper planning when CNC machining. One of the first and simplest things to look for when performing operations that involve vises is the length of the contact area between the part and the vise jaws.

Article December 15, 2015 James Harvey

Beyond the educated guess: General Industry Coverage

Planning is critical when operating CNC machines. When I began machining, CNCs were just coming into mainstream use. The first shops I worked in had only conventional (manual) machines. It wasn't until the mid-1980s that I started to notice the incredible versatility of CNC machines.

Article October 15, 2015 James Harvey

Intro to CNC trade secrets

The end of manual machining isn't near. There are certain tasks you can do with conventional machines that CNC machines are just not good at, such as "blending," reports the October Shop Operations column in Cutting Tool Engineering magazine.

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