| 摘要 |
The present invention relates to a method of making a cutting blade in aluminium or its alloys. The method comprises the steps of: - making a sheet (12) in aluminium or its alloys having the shape of the desired cutting blade;, - performing a sharpening operation of the blade; - subjecting the blade to an anodising process, so as to form at least on the portion of sharpened blade a layer of aluminium oxide (A1 20 3). The sharpening operation provides for laying the sheet on a planar support surface and - making a sharp cutter (30) for aluminium advance along the peripheral edge (14) of an outer portion of the sheet surface opposite the support surface (22) suitable for reducing the thickness of said edge according to a predefined angle of sharpening so as to obtain a cutting edge by removal of the shaving. |
