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Blade tooth profile is not normal

Update:23 Oct 2017
Summary:

Reason (1) Asymmetric toothed (2) Hob is not properly i […]

Reason
(1) Asymmetric toothed

(2) Hob is not properly installed
  (3) After the hobbing, the radial error of the front blade surface is large
  (4) Hob grinding, the helix angle or lead error
  (5) Hob mounting angle error is too large
Countermeasure
  ( 1) With "bite knife flower" method or knife on the knife
  (2) Control the quality of hob grinding
  (3) Reorient the hob angle

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