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US 5,493,097 AGranted
Method of forming a plate body
AssigneeKvaerner Masa-Yards Oy
InventorsJukka Gustafsson, Kalevi Heino
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AssigneeKvaerner Masa-Yards Oy
InventorsJukka Gustafsson, Kalevi Heino
Estimating the term…
A plate body is formed from two plane metal plates each at least 5 mm thick and having an edge at least 10 meters long, by machining each plate along its edge to form a welding groove with high accuracy relative to the dimensions and shape of the groove and with a smooth groove surface. The groove extends from a first side of each plate through only part of the thickness of the plates to leave a root area at the second side of the plate. The plates are supported in the vicinity of the welding groove from the second side of the plates by a support bed and are retained by use of suction in relative positions such that the root areas of the two plates are in confronting and contacting relationship. A weld is created in the welding groove by butt joint welding from the first side only of the plates.
A method for mass producing plate bodies each composed of two metal plates joined together by welding, and wherein each plate is at least 5 mm thick and has first and second opposite sides and an edge at least 10 meters long, said method comprising cutting each plate along said edge by use of a mechanical cutting tool to form a welding groove with high accuracy relative to the dimensions and shape of the groove and with a smooth groove surface, the groove extending from the first side of each plate through only part of the thickness of the plates to leave a root area at the second side of each plate, supporting the plates in the vicinity of the welding groove from the second side of the plates by a support bed, retaining the plates by use of suction in relative positions such that the root area of the two plates are in confronting and contacting relationship, and creating a weld in the welding groove by butt joint welding from the first side only of the plates.
A method of forming a plate body from two metal plates each at least 5 mm thick and having first and second opposite sides and at least one edge that is at least 10 meters long, comprising:
Dependencies are inferred from the claim text.