Editorial

Jeffrey Badger, Ph.D.

Jeffrey Badger, Ph.D., is an independent grinding expert and the author of CTE's Ask The Grinding Doc column. Since 2004, he has helped manufacturers improve precision-grinding operations through consulting, education and practical troubleshooting.

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Article August 15, 2016 Jeffrey Badger, Ph.D.

Grinding sensitive parts

Our supplier in Asia is grinding hardened-steel parts and sending them to us for final processing. Some of them are cracking, so we're going to visit the supplier. What should we be looking for?

Article June 15, 2016 Jeffrey Badger, Ph.D.

Cam-grinding options

Ask the Grinding Doc Columnist Jeffrey Badger, Ph.D., responds to a question about the difference between "constant rpm" and "constant metal-removal rate" when it comes to grinding cams.

Article April 15, 2016 Jeffrey Badger, Ph.D.

The madness of wheel trials

Dear Doc: I sell grinding wheels and frequently find myself pulling my hair out when recommending wheels to customers. One customer achieved great success with a resin-bond, 400-mesh diamond wheel when grinding ¾"-dia. carbide endmills.

Article February 15, 2016 Jeffrey Badger, Ph.D.

Dressing with PCD: General Industry Coverage

Ask the Grinding Doc: When I ran out of single-point dressing diamonds and got desperate, I mounted a PCD insert to dress an Al2O3 wheel. Is there any danger in doing that?

Article December 15, 2015 Jeffrey Badger, Ph.D.

Learn not to burn: General Industry Coverage

Jeffrey Badger, Ph.D., fields a question from a shop getting "terrible burn on the shoulder" when cylindrical grinding steel parts with a straight plunge.

Article August 15, 2015 Jeffrey Badger, Ph.D.

Multirib grinding wheels

A machinist who is cylindrical-grinding threads into hardened steel using multiple-rib, vitrified-bond, aluminum-oxide wheels is experiencing breakdown of the thread root, and turned to the Grinding Doc for help.

Article June 15, 2015 Jeffrey Badger, Ph.D.

Multigrit wheel benefits: General Industry Coverage

The Grinding Doc offers an upbeat take on tri-grit wheels.

Article April 15, 2015 Jeffrey Badger, Ph.D.

Battling part barreling: General Industry Coverage

Dr. Jeffrey Badger, who authors the Ask the Grinding Doc column, answers questions about barreling and scrubber nozzles.

Article February 15, 2015 Jeffrey Badger, Ph.D.

Battling grinding burn

Dear Doc: I battle burn and long cycle times when grinding ODs in bearing. The wheel manufacturer has specified a series of wheel changes to solve the problem, but it means buying a lot of new wheels. What's your take?

Article December 15, 2014 Jeffrey Badger, Ph.D.

How to purposely burn workpieces

Dr. Jeffrey Badger, Cutting Tool Engineering's Ask the Grinding Doc columnist, cautions readers not to be timid when slowing the workpiece speed to induce burn.

Article August 15, 2014 Jeffrey Badger, Ph.D.

Finding the grinding sweet spot

The sweet spot is where the grits in a grinding wheel optimally penetrate the workpiece to form a chip -- not too deep and not too shallow.

Article June 15, 2014 Jeffrey Badger, Ph.D.

All-or-nothin’ burn: General Industry Coverage

Water is an effective heat conductor, and, if you get an adequate supply of coolant within the pores of the wheel, the coolant will absorb about 70 percent of the heat.

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Jeffrey Badger, Ph.D.

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