Method of removing material from a surface of a metal work piece
AssigneeShiloh Industries, Inc.
InventorsHari Prasad, Mark A. Schimming, James F. Keys, John R. Ewolski, Stephen A. Fetsko
Life of this patent
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Abstract
A method of removing material such as surface treatments, metal coatings, and other material layers from an edge region of a metal work piece where they could potentially contaminate a nearby weld. According to one embodiment, a scraper tool includes a body having a base portion and a tab portion, and several scraping elements attached to the base portion. During operation, the scraping elements scrape one or more surfaces of the edge region so that the depth to which the scraping element engage the metal work piece is generally affected by the amount of rotation of the scraper tool about a pivot axis.
Claims11
A method of removing material from a surface of a sheet metal piece, comprising the steps of:
- (a) providing a tool for removing a thin metal coating layer from a horizontal surface of the sheet metal piece, wherein the thin metal coating layer includes aluminum (Al) and/or zinc (Zn) and has a different composition than an interior of the sheet metal piece;
- (b) positioning the tool in close proximity with the horizontal surface of the sheet metal piece;
- (c) causing relative movement between the sheet metal piece and the tool;
- and
- (d) using the tool to remove the thin metal coating layer that includes aluminum (Al) and/or zinc (Zn) without substantially disrupting the interior of the sheet metal piece.
A method of removing material from a surface of a sheet metal piece, comprising the steps of:
- (a) providing a tool in proximity with an edge region of the sheet metal piece;
- (b) causing relative movement between the sheet metal piece and the tool;
- and
- (c) using the tool to selectively remove material from a first thin metal coating layer and a second thin metal coating layer only in the edge region of the sheet metal piece and without substantially disrupting the interior of the sheet metal piece, wherein the first thin metal coating layer is in contact with an interior of the sheet metal piece and includes aluminum (Al) and/or zinc (Zn) and the second thin metal coating layer is in contact with the first thin metal coating layer and also includes aluminum (Al) and/or zinc (Zn).
Dependencies are inferred from the claim text.