METHOD OF WELDED JOINT MACHINING AND DEVICE TO THIS END Russian patent published in 2014 - IPC B23K37/00 B23C3/12 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and can be used in ship building, aircraft engineering, chemical machine building, etc. Proposed method comprises setting and fastening of welded joint and its machining by rotary tool arranged at angle a displaced in lengthwise direction relative to welded joint arranged at weld backing. Said backing has a groove arranged along tool displacement path, said tool being composed of cylindrical mill with ledge at its end face. Machining is effects at feeding the mill ledge to welded joint parent metal to depth f=0.05-0.5 mm. Cylindrical mill setting angle is defined such that removal of welded joint excess magnitude by mill face part is made in mill lengthwise displacement and joint plastic straining by said ledge to parent metal level. Invention covers the tool design and relationship of its parameters.

EFFECT: decreased force at tool at large welded joint convexity and irregularity of plastic strain over joint length.

2 cl, 1 dwg, 1 ex