A shop that grinds tungsten-carbide endmills using a resin-bonded diamond wheel turned to Dr. Jeffrey Badger for the 37th episode of Cutting Tool Engineering magazine's Grinding Doc Video Series because one of the shop's wheel suppliers was talking about Q prime values. According to the supplier, the shop should be using a Q prime value of 6 or 7. So the shop asked the Grinding Doc, "What's up with Q prime values?"
In this 38th episode of Cutting Tool Engineering magazine's Grinding Doc Video Series, host Dr. Jeffrey Badger helps a shop deal with the brown, yellow and blue marks that keep appearing on an unground surface. He addresses the difference between oxidation burn, or rust, and genuine thermal damage.
A shop experiencing on-again, off-again waviness issues during cylindrical OD grinding operations asks Dr. Jeffrey Badger why the problem comes and goes in the 39th episode of Cutting Tool Engineering magazine's Grinding Doc Video Series. Badger, the host of video series, provides some insight.
Dr. Jeffrey Badger, the host of Cutting Tool Engineering magazine's Grinding Doc Video Series, helps a shop that's getting cracking at the corner radius of a tungsten-carbide part in the 40th episode of the video series.
Are diamonds a machine shop's best friend? Dr. Jeffrey Badger, the host of Cutting Tool Engineering magazine's Grinding Doc Video Series, takes a close look at the question in the 41st episode of the video series.
Dr. Jeffrey Badger, the host of Cutting Tool Engineering magazine's Grinding Doc Video Series, addresses how appearances can be deceiving for shops engaging in traverse disc grinding in the 42nd episode of the video series.
For the 43rd episode Cutting Tool Engineering magazine's Grinding Doc Video Series, Dr. Jeffrey Badger helps a shop having trouble getting its CBN wheel to open up before it burns the first few hardened steel parts, which then must be scrapped.
For the 44th episode of the Grinding Doc Video Series, a shop recently asked Dr. Jeffrey Badger, Cutting Tool Engineering magazine's Ask the Grinding Doc columnist, to settle an argument about the best way to run the dresser when rotary plunge diamond dressing aluminum-oxide wheels.
A shop is grinding hardened steel, and periodically switches between a CBN wheel and an aluminum-oxide wheel. Given that the shop is getting pretty much the same material removal rate, surface finish and cycle times with both wheels, the shop is beginning to wonder if it's really worth it to use a CBN wheel.
Dr. Jeffrey Badger, the host of Cutting Tool Engineering's Grinding Doc Video Series, responds in the 45th episode of the video series.
A shop using electroplated grinding wheels observed a horrible surface finish on the first several parts produced by a new wheel. Though the surface finish gradually improves, the shop turned to the Grinding Doc for a solution to the problem.
Dr. Jeffrey Badger, the host of Cutting Tool Engineering's Grinding Doc Video Series, takes a look at the problem in the 46th episode of the video series.
