Author

Jeffrey A. Badger, Ph.D.

Jeffrey A. Badger, Ph.D., is an independent grinding expert. He will be giving his 3-day High Intensity Grinding Course from Sept. 26-28 in Columbia, S.C., hosted by S.L. Munson. Visit www.thegrindingdoc.com for details. He can be reached by phone at 512-934-1857 or via email at [email protected].

Ask The Grinding Doc Columnist

Phone: 512-934-1857

Sort

Content Type

Optional: narrow results to one content type.

Magazine Column

Select one or more.

Video Type

Select one or more.

Product Category

Select one or more.

Industry

Select one or more.

Operation / Process

Select one or more.

Topic

Select one or more.

Reset

Articles January 19, 2026 Jeffrey A. Badger, Ph.D.

ID Taper

A shop battling taper in ID grinding, especially when the hole is deep, turns to the Grinding Doc. It’s as if the wheel is just riding over the workpiece.

Articles September 23, 2025 Jeffrey A. Badger, Ph.D.

Final Thing To Do Before Grinding

The Grinding Doc resolves a debate over whether a shop should balance a wheel before grinding or dress a wheel before grinding.

Articles July 21, 2025 Jeffrey A. Badger, Ph.D.

Grinding Fatigue

The Grinding Doc reviews a recent finding that bad grinding caused an Alaska Air Boeing 737's landing gear to fail during landing on Aug. 30, 2023.

Articles April 19, 2025 Jeffrey A. Badger, Ph.D.

Varying The Workpiece Rpm

A shop asks the Grinding Doc to explain whether the option to vary the workpiece rpm on its cylindrical grinding machine is legit, and how it works.

Articles February 19, 2025 Jeffrey A. Badger, Ph.D.

Exit Nozzle: A Good Idea?

Shop asks the Grinding Doc to address whether mounting a nozzle at the wheel/workpiece exit point can improve coolant effectiveness in grinding operations.

Articles January 20, 2025 Jeffrey A. Badger, Ph.D.

Big, Dull Grits Bad, And Other Tips

The Grinding Doc addresses questions about large grits versus small grits, the pros and cons of overhead dressers, and avoiding natural frequencies.

Articles August 21, 2024 Jeffrey A. Badger, Ph.D.

Blanchard Grinding

Blanchard grinding: balance downfeed rates to maintain wheel sharpness without excessive wear, adjusting for wheel hardness and machine power.

Articles July 9, 2024 Jeffrey A. Badger, Ph.D.

Reduce Edge Chipping

The Grinding Doc offers three ways to reduce edge-chipping

Articles May 6, 2024 Jeffrey A. Badger, Ph.D.

Barber pole

The Grinding Doc breaks down the causes and solutions for these workpiece spiral marks.

Articles March 5, 2024 Jeffrey A. Badger, Ph.D.

Overhanging wheels, making your wheel ‘act harder’

Learn why The Grinding Doc is a fan of downfeeding on the workpiece and the meaning of an old adage.

Articles January 8, 2024 Jeffrey A. Badger, Ph.D.

Chatter stability map

With chatter, things quickly get complicated.

Articles December 19, 2023 Jeffrey A. Badger, Ph.D.

Nital etching, setting up a lab

Tips to reduce the uncertainty of this very subjective test

1 2 3 … 8 Next »

Jeffrey A. Badger, Ph.D.

Explore

Address:

Follow