How to solve DDG Grinding Wheel problems?

March 04, 2021

How to solve DDG Grinding Wheel problems?

1.      During the grinding process, the CBN grinding wheel burns workpiece

  • The hardness of the CBN wheel is on the high side, should replace the proper grinding wheel
  • Coolant nozzle direction is wrong or the flow is not sufficient: Adjust the direction of the nozzle of the coolant and increase the flow
  • The dressing of CBN wheel is not sufficient: Replace CBN grinding wheel dresser and carry out new grinding wheel dressing
  • The feed rate of workpiece is too high: Reduce the amount of feed appropriately

Ø  Coolant filtration is not clean: Re-check and adjust the cooling system


2.      Poor discontinuity of grinding workpiece size discontinuity

  • The selected grinding wheel is too hard: Replace the grinding wheel with appropriate hardness


3.      The chatter marks on CBN grinding wheel surface

  • Too high feed rate: Decrease the feed rate
  • Hard grinding wheel: Decrease the hardness, improve the workpiece rotate speed and accelerate the dressing
  • Uneven grinding wheel: re-dress the grinding wheel; Machine vibration: check the vibration of the machine and the surrounding environment.


4. Poor continuity of grinding wheel size

  • The hardness of the selected grinding wheel is too low: replace the grinding wheel with the proper hardness.


5.     Poor surface roughness of the workpiece after grinding

  • The speed of the workpiece is too slow: speed up the workpiece
  • Coolant is not filtered adequately: check that the filtering system adjusting the coolant is working properly
  • Large feed speed: suitably slow down the feed speed
  • The speed of grinding wheel is too low: adjust the grinding wheel rotation speed
  • Grinding wheel dressing is not in place: adjust or replace the CBN grinding wheel dresser for new dressing
  • The grit the selected grinding wheel is not matched: change the grit of the matching grinding wheel

Moresuperhard is a company who has years of experience in double disc grinding, we have a full line of diamond and CBN grinding wheels and dressing stones for fine grinding machines and single and double side lapping systems.

Our diamond and CBN double disc are used in the following areas:

♦ Hydraulic pneumatic components. vane pump, conversion valve, piston pump, fuel pump, hydraulic motor parts
♦ Compressor spare parts. air conditioner compressor vane, piston, Refrigerator compressor valve plate, cylinder block (grey cast iron or nodular cast iron), sleeve (alloy cast iron), slide (high speed steel)
♦ Engine parts. automobile fuel pump parts, booster pump parts, oil pump nozzle parts
♦ High precision shaft ,seal, watch parts, molds, carbide blade, ceramic valve core, magnetic materials, etc

TAG:   CBN wheel