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Tooth surface defects ---- tearing

Update:04 Dec 2017
Summary:

The reason  1) Uneven gear material   2) Tooth billet h […]

The reason
 1) Uneven gear material
  2) Tooth billet heat treatment improper method
  3) The choice of cutting the amount of unreasonable and BUE generated
  4) Cutting fluid is not high efficiency
  5) Hob with blunt, not sharp
  Countermeasures
1) Control the quality of gear material
  2) The correct choice of heat treatment methods, especially the hardness after quenching and tempering, it is recommended to use normalizing
  3) Correct choice of cutting dosage, to avoid the build-up of tumor
  4) Correct selection of cutting fluid, with particular attention to its lubricating properties
  5) Replace the new knife

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