TOOL FOR PLANETARY THREAD ROLLING WITH AXIAL OSCILLATION OF MOULDING SURFACE Russian patent published in 2017 - IPC B23G5/00 B23G7/02 

FIELD: construction.

SUBSTANCE: tool includes a tail portion to hold tools on the machine and a thread forming part consisting of at least one main annular projection with a deformation moulding surface, which is obtained by movement of the moulding profile similar to the treated thread on the guide in the form of a plane closed curve formed by the intersection of the original cylindrical surface and a plane which is inclined at an angle of thereto, where a is the specified width of the moulding profile top, b - is the width of the recess of the formed thread, provided that a<b.

EFFECT: use of the invention improves strength and durability of the treated threaded surface with a possibility to control the degree of hardening, hardened layer depth and thread surface roughness.

5 cl, 8 dwg