It is shown that,the use of serrated apertures can suppress the high frequency diffraction of axial intensity and reduce the nonuniformity of transversal intensity distributions.

Through analysis it is concluded that for a given rock and given tooth profile,the cut-in displacement(depth)is in a linear relationship with cut-in load,the volume of breaking pit decreases with t.

By combined calculation with drawing, a design method of tooth profile of rough milling cutter for straight bevel gears is introduced.

The method analysing on detecting tooth form of gear hob;

The tooth form of small module gear is very complex and its hob possesses many parameters which are very complicated and tedious to be calculated.

These works summer up the common grounds of various PRC gear tooth forms, so they will b.

Analysis system for tooth shape of general purpose double-circular-arc gear;

Tooth shape and its pressure angle analysis on the cycloidal steel ball transmission;

It should be fully considered when the tooth shape is designed.

Gives a new method which designs tooth forms of pre-grinding hob according to thepartical demands on hob of gear,and designs a kind of pre-grinding hob used in high-speed trac-tion gears.

The investigation for the profile of asymmetrical involute gear;

Analysis on profile errors of spur bevel gears;

Theoretical Research of Optimum Design on Profile Shape of Gear Coupling;