Episode 59: What’s the story with Cubitron II grit?
Dr. Jeffrey Badger, the Ask the Grinding Doc columnist for Cutting Tool Engineering magazine, examines the new Cubitron II grit. The research cited in this episode is described in detail in the…
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Episode 57: Coolant Strategy
How close do you need to get the coolant nozzle to the grinding wheel? Dr. Jeffrey Badger, our Ask The Grinding Doc columnist, offers some direction. Visit The Grinding Doc website for…
Episode 56: Cup-wheel Grinding
For one shop, increasing wheel speed when cup-wheel grinding usually reduces wheel wear, but sometimes it increases wear. The shop turned to Grinding Doc Jeffrey Badger, Ph.D., for some insight. Visit The…
Episode 55: Dressing vs. grinding speed
The Grinding Doc fields a question from a machinist who seemed unsure of advice from the "old-timers" in the shop who told him he must dress at the same wheel speed he…
Episode 54: Reducing cycle time
A shop surface grinding 12" x 36" plates has to remove an eighth of an inch of material on both sides, but the cycle time is a killer. The shop turned to…
Episode 53: Switching to CBN?
Dr. Jeffrey Badger, Cutting Tool Engineering magazine's "Ask the Grinding Doc" columnist, offers a checklist for shops thinking about making the switch from aluminum-oxide to CBN. Visit The Grinding Doc website for…
Episode 52: Evaluating coolants
A coolant supplier having trouble getting customers to try a new product turned to the Grinding Doc for some insight into how to convince shops to change their coolant. Visit The Grinding…
Episode 51: Any sweet shortcuts?
Dr. Jeffrey Badger, who writes our Ask the Grinding Doc column, fields a question from a shop hoping to find a faster way to find the sweet spot when cylindrical-plunge grinding tugsten-carbide…
Episode 50: Keep the sweet spot
A shop that cylindrical-grinds tungsten-carbide is running into trouble maintaining optimal parameters when switching to a larger diameter. Dr. Jeffrey Badger, Cutting Tool Engineering magazine's Ask the Grinding Doc columnist, offers some…
Episode 49: A creeping burn
A shop seeks relief from the burn experienced during its creep-feed grinding operations. Given that slowing down the feed rate only helped a little, and only for a short time, the shop…
Episode 48: What pressure?
Dr. Jeffrey Badger fields a question from a shop grinding hardened steel with a CBN wheel. Though the shop is using a high-pressure cleaning nozzle, it doesn't seem to help much. The…
Episode 47: Reducing wheel consumption
The Grinding Doc suggests a shop look at its dressing policy if it hopes to reduce its wheel consumption. Visit The Grinding Doc website for more advice from Dr. Jeffrey Badger at…
Episode 46: Rough start
A shop using electroplated grinding wheels has 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…
Episode 45: Is it really worth it to use a CBN wheel?
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…
Episode 44: Getting toast with your plunge roll?
A shop recently asked Dr. Jeffrey Badger, Cutting Tool Engineering magazine's Ask the Grinding Doc columnist, to settle an argument about which way to run the dresser when rotary plunge diamond dressing…
Episode 43: Getting the wheel to open up
The Grinding Doc 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. Visit The Grinding…
Episode 42: Appearances can be deceiving
Dr. Jeffrey Badger helps a shop that's burning through traverse diamond dressing discs in the 42nd episode of Cutting Tool Engineering's Grinding Doc video series. Visit The Grinding Doc website for more…
Episode 41: Pricey diamond
Are diamonds a machine shop's best friend? Dr. Jeffrey Badger takes a close look at the question in the 41st episode of the Grinding Doc video series. Visit The Grinding Doc website…
Episode 40: Don’t get cracking
In the 40th episode of Cutting Tool Engineering's Web-based Grinding Doc Video Series, Dr. Jeffrey Badger helps a shop that's getting cracking at the corner radius of a tungsten-carbide part. Visit The…
Episode 39: Grinding the wave
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's Grinding Doc…
Episode 38: Rust never grinds
In this 38th episode of the Grinding Doc video series, Dr. Jeffrey Badger helps a shop deal with the brown, yellow and blue marks that keep appearing on an unground surface. He…
Episode 37: What’s your Q prime number?
A shop that grinds tungsten-carbide endmills using a resin-bonded diamond wheel turned to Dr. Jeffrey Badger, the author behind our Ask the Grinding Doc column and video series, because one of the…
Episode 36: Nitty gritty on chatter
Cutting Tool Engineering magazine, through its Website CTEplus, presents the 36th episode of the Grinding Doc Video Series. Dr. Jeffrey Badger addresses grit size versus chatter. Visit The Grinding Doc website for…
Episode 35: A closer look
Dr. Jeffrey Badger, Cutting Tool Engineering magazine's "Ask the Grinding Doc" columnist, shares a number of photos taken at extreme magnification to reveal wheel wear and much more in the the 35th…