The Research of Plastic Gear Tooth Tip Modification and Rack Tool Root Modification

With the increasing application of plastic gears, the defects of the plastic gear design and manufacturing appears increasingly. Combining the plastic gears problems in the application and the problems of the plastic gear design and manufacturing appears in the company, we collect domestic and abroad information, ratiocinate and research the relationship between plastic gear modification and rack tool modification. Finally, we propose the trial-error theory in order to resolve minimum tip thickness problem, and apply this theory on spur gear for validation.