Fluidostatic rolling device for surface processing and method for shaping the edge layer

A method for treating a subsurface of a workpiece, comprising the steps of:

• subjecting at least one rolling element of a rolling tool to a pressurised fluid,
• establishing contact between said at least one rolling element and a workpiece surface, so that said at least one rolling element is deflected and an air cushion forms and exerts a constant force on the workpiece surface, and,
• moving the rolling tool relative to the workpiece, and-wherein said pressurised fluid is a lubricant mist, and
• disengaging the rolling tool when desired, wherein said pressurised fluid presses said at least one rolling element against a seat, thereby sealing said rolling tool.

A fluidostatic rolling device for surface treatment, with

• (a) at least one rolling element,
• (b) at least one fluidostatic mounting, by means of which the rolling element is mounted, comprising a borehole having a diameter slightly larger than a diameter of said at least one rolling element, and a restraining element at a distal opening of said borehole, wherein a diameter of said distal opening is slightly smaller than said diameter of said rolling element, and
• (c) at least one pressurised fluid supply, which is designed to feed a pressurised fluid to the mounting,
• wherein the mounting is designed such that the rolling element can be pressed against a workpiece surface to be processed by means of the pressurised fluid, and
• wherein the pressurised fluid is a lubricant mist comprising an oil-free lubricant or a mixture of oil-free lubricant and oil components.

A fluidostatic rolling device for surface treatment, with

• (a) at least one rolling element,
• (b) at least one fluidostatic mounting, by means of which the rolling element is mounted, comprising a borehole having a diameter slightly larger than a diameter of said at least one rolling element, and a restraining element at a distal opening of said borehole, wherein a diameter of said distal opening is slightly smaller than said diameter of said rolling element, and
• (c) at least one pressurised fluid supply, which is designed to feed a pressurised fluid to the mounting, wherein said pressurised fluid is a lubricant mist, and
• wherein the mounting is designed such that the rolling element can be pressed against a workpiece surface to be processed by means of the pressurised fluid, and said rolling element is able to seal said mounting when said rolling element is not pressed against a workpiece surface.