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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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