Volvo Aero Corporation

Mats Hallqvist

Jan Lundgren

Jan Häggander

A method of manufacturing a wall structure includes producing at least one elongated web in a workpiece by feeding a machining tool along the workpiece, wherein the machining tool simultaneously machines a first side surface of the web, a second side surface of the web and a top surface of the web.

Method of manufacturing a wall structure and a machining tool

Method and arrangement for providing a stator component intended during operation to conduct a gas flow. The component is made up of at least two sections () in its circumferential direction, which sections each have at least one wall part (). The sections are placed adjacent to each other and two wall parts, one from each of two adjacent sections, are connected in order together to form a means, extending in the radial direction of the component, for guidance of the gas flow and/or transmission of load during operation of the component.

Method for manufacturing a stator component

Method and arrangement for providing liquid fuel rocket engine member (). The member forms a body of revolution having an axis of revolution and a cross section that varies in diameter along said axis. The wall structure includes a plurality of cooling channels (). The outside of the wall structure includes a continuous sheet metal wall (). The cooling channels () are longitudinally attached to the inside of the sheet metal wall. The method for manufacturing the rocket engine member () includes the steps of forming a sheet metal wall () having a wall section corresponding to the desired nozzle section, providing a plurality of channel members (), and attaching the channel members () to the inside of the sheet metal wall ().

Rocket engine member and a method for manufacturing a rocket engine member

A method for producing rotational-symmetrical sheet metal articles with double-curved shape and varying thickness, particularly rocket nozzles, in which a number of sheet metal part-blanks in flat condition are cut to partially circular ring-like shape, whereupon said part-blanks are bent to the desired curvature and welded together to form a blank of the article for final machining. According to the invention the part-blanks are formed by welding together a number of strip-like sheet metal pieces with different thickness of material in flat condition along their straight edges in side-by-side relationship to form a sheet metal plate with a width corresponding to the whole length of the article and with stepwise decreasing thickness of material from one side to the other of said plate, whereupon this sheet metal plate is cut to the shape of a nozzle part-blank with partially circular ring-like shape, and said nozzle part-blank then is bent, and said part-blanks are welded together along their adjacent straight and non-parallel sides to the final blank of the article, which blank finally is subjected to finishing machining, if necessary.

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Grästorp, Sweden

Mats Hallqvist