Abstract

A method for surface-finishing one or more metal liners is provided, the method comprising chemical milling to remove wrinkled textures generated during the plastic deformation of the metal liners.

IPC Classes  ?

• C23F 1/04 - Chemical milling
• C23F 1/36 - Alkaline compositions for etching aluminium or alloys thereof
• F17C 1/14 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminiumPressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of non-magnetic steel

Abstract

This document discloses a system and method for polishing a metal surface, using a grinding machine and a burnishing machine. The grinding machine comprises an arm coupled with a grinding wheel for grinding the internal surface of a workpiece, an arm rotation drive block configured to drive rotation of the arm around its longitudinal axis, an arm movement drive block configured to move the arm longitudinally and vertically, and rollers for rotating the workpiece around its cylindrical axis via friction with an external surface of the workpiece. The arm comprises a fixed main shaft, a universal joint shaft and a head section coupled with the grinding wheel, wherein the head section is configured to oscillate vertically, allowing the grinding wheel to follow up-and-down fluctuations of the workpiece. The burnishing machine is configured to tumble the workpiece including a tumbling detergent and tumbling beads therein.

IPC Classes  ?

• B24B 5/40 - Single-purpose machines or devices for grinding tubes internally
• B24B 39/02 - Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zoneAccessories therefor designed for working internal surfaces of revolution
• B24B 31/00 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor
• B24B 5/18 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centreless means for supporting, guiding, floating or rotating work