G-Doc Videos

Short question/answer videos about grinding, in collaboration with Cutting Tool Engineering. The Grinding Doc video series was the winner of the 2012 APEX Award for Publication Excellence. Selected videos given below…

  • Grinding Burn: helps a grinding shop distinguish between true thermal damage and surface burn.
  • Burr: Badger responds to a recommendation for a wheel that will eliminate burr.
  • Spindle stiffness: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?
  • Reducing wheel consumption: Advice on battling burn while reducing wheel consumption.
  • Finding the sweet-spot in the wheel: Helps a shop weigh advice from two wheel salesmen.
  • Superabrasive wheel sticking:  The difference between two conditioning sticks purchased from two differrent suppliers.
  • Biting into the workpiece during sparkout: How can the shop get the wheel to bite?
  • Minimum Quantity Lubrication:Addresses whether minimum quantity lubrication is the future of grinding.
  • Diamond-wheel sticking: How hard should you stick your resin-bonded or metal-bonded diamond wheel when grinding tungsten-carbide? Addresses whether minimum quantity lubrication is the future of grinding.
  • Nitty gritty on chatter: Addressing grit size versus chatter.
  • What’s your Q prime number?: According to the supplier, the shop should be using a Q prime value of 6 or 7. So the shop wants to know what’s up with Q prime values.
  • Rust never grinds: Helping 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.
  • 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
  • Don’t Get Cracking: Dr. Jeffrey Badger helps a shop that’s getting cracking at the corner radius of a tungsten-carbide part.