METHOD OF MACHINING HYDRAULIC DAMPER BARREL INNER SURFACE Russian patent published in 2013 - IPC B23P15/22 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to making and machining hydraulic cylinders used in various machinery. Proposed method comprises rough boring of hydraulic cylinder barrel bore, finishing and lapping said bore. Lapping is carried out using grinder with abrasives. In grinding, abrasives are changed in turn from coarse to fine abrasives. After lapping, ledges are built up along barrel inner surface generatrix in area adjoining cylinder rod and piston edges.

EFFECT: simplified process.

11 dwg, 1 tbl