FINISHING STRENGTHENING TOOL FOR CYLINDRICAL AND SHAPED OPENINGS Russian patent published in 2007 - IPC B24B39/02 

FIELD: manufacturing processes in machine engineering, namely apparatuses for finishing and strengthening cylindrical and shaped openings.

SUBSTANCE: tool includes body, loading mechanism in the form of central rod with cone surfaces and deforming members. The last are in the form of springs with elliptical turns. Body of tool is in the form of sleeve with radial slits arranged in one or in several levels of body cross sections. Radial slits are formed according to condition of placing spring turns into them. Each spring is mounted in tool body at its own level and it is arranged in such a way that to embrace respective cone surface of central rod. Each cone surface of central rod has guiding lengthwise grooves whose number and width are equal to quantity and width of spring turns.

EFFECT: enlarged manufacturing possibilities.

3 dwg, 1 tbl, 1 ex