Machining

A shop has two of the exact same machines, but one has a newer spindle. The shop is thinking about putting a new spindle on the second machine, but wants to know if there is any way to determine if one spindle is stiffer than the other? Dr.

A shop performing continuous-dress, creep-feed grinding on nickel alloys contacted Dr. Jeffrey Badger for advice on battling burn while reducing wheel consumption. Check out Badger's response in the latest episode of The Grinding Doc video series produced by CTEplus, the Web site for Cutting Tool Engineering magazine.

In this episode of the Grinding Doc Video Series, Dr. Jeffrey Badger helps a shop resolve the chatter encountered when performing multi-pass cylindrical OD grinding. Though the shop keeps dropping the plunge speeds, nothing seems to help. What can they do? Visit The Grinding Doc website for more advice from Dr.

Watch the latest episode of our Grinding Doc Video Series featuring Dr. Jeffrey Badger, the expert behind Cutting Tool Engineering magazine's Ask the Grinding Doc column. In the latest installment of the video series, Badger responds to a recommendation for a wheel that will eliminate burr.

A grinding shop trying to grind a 0.006″ radius into a hardened steel part with a 60-grit, vitrified-bond, aluminum-oxide wheel was having trouble with burn and huge chatter. Grinding Doc Jeffrey Badger explains how to handle the situation. Visit The Grinding Doc website for more advice from Dr.

Grinding Doc Jeffrey Badger looks at improving coolant velocity for shops running into loading problems with superabrasive wheels. Such wheels, he says, are more problematic than aluminum oxide wheels that wear away more readily. Superabrasive wheels, he notes, just don't wear away very quickly. Visit The Grinding Doc website for more advice from Dr.

Grinding Doc Jeffrey Badger says don’t be timid when you stick your wheel. By doing so, he says, you can do more parts between wheel sticks—just be careful of the surface finish of the first few parts after sticking the wheel. Visit The Grinding Doc website for more advice from Dr.

Grinding Doc Jeffrey Badger urges shops to dress quickly and take deep cuts to reduce cycle times. Visit The Grinding Doc website for more advice from Dr.

Grinding Doc Jeffrey Badger offers an overview of cylindrical OD plunge grinding in the seventh installment of our Grinding Doc video series. One of the great things about cylindrical grinding is that you can really play around with your parameters, Badger observes in the report. Visit The Grinding Doc website for more advice from Dr.

What’s a good speed when cylindrical OD traverse grinding? Grinding Doc Jeffrey Badger worries less about the speed, more about the percentage of the wheel being used to do the roughing. Visit The Grinding Doc website for more advice from Dr.

Thinking about using cluster diamonds? Grinding Doc Jeffrey Badger suggests going at least 4x faster than with a single-point diamond. Visit The Grinding Doc website for more advice from Dr.

In the third episode of the Grinding Doc video series, Jeffrey Badger, Ph.D., takes a look at a common problem shops have with getting the surface finish that they want. Visit The Grinding Doc website for more advice from Dr.