A method for forming a heat exchanger plate includes: securing a wave form metallic sheet to a heat exchanger plate substrate, the substrate comprising a first face and a second face opposite the first face, the securing of the wave form metallic sheet being to the first face; and removing peaks of the sheet.

A shaft assembly comprises a hollow shaft and at least one working component disposed therein. A method of forming the shaft assembly includes a step of providing at least one generally planar preform. The preform is then formed into a “U”-shaped partial cylinder. One or more working components may then be assembled and connected to an interior of the partial cylinder. The partial cylinder is then further formed into a hollow cylinder having a generally circular cross-sectional shape, thus surrounding the one or more working components to secure a position thereof in an interior of the hollow cylinder. The hollow cylinder may then be held stationary and a welding operation performed thereon to form the hollow shaft. Once the hollow shaft is welded, post process machining may then be performed thereon as desired to further finish the hollow shaft.

A method for forming a heat exchanger plate includes: securing a wave form metallic sheet to a heat exchanger plate substrate, the substrate comprising a first face and a second face opposite the first face, the securing of the wave form metallic sheet being to the first face; and removing peaks of the sheet.

A method includes: an inner pipe insertion step of inserting an inner pipe to between a cored bar and a metal movable claw; a designated section corrugated portion formation step of forming a corrugated portion in a first designated section by pressing the first designated section of the inner pipe radially inward by the metal movable claw and plastically deforming the first designated section; a movable claw moving step of moving the metal movable claw outward in the radial direction of the inner pipe; and an inner pipe moving step of moving a second designated section that is the next designated section to between the cored bar and the metal movable claw.

A method for producing a flat tube for a heat exchanger, in particular for a motor vehicle, having a first wall, a second wall opposite to the first wall, having a third wall connecting the first and second wall, having a fourth wall connecting the second and first wall, wherein the first and second wall are longer than the third and fourth wall, having an interior for a medium to flow through, wherein a turbulence insert is arranged in the interior, wherein the method comprises at least the following process steps: —providing a plate material —forming the plate material into an intermediate tube in such a way that the plate material is crowned in at least two sections and the sections at least partially form the first and second wall of the flat tube and the intermediate tube forms an opening in the area one of the two third or fourth walls —providing and inserting a turbulence insert into the interior —closing the opening by means of a welding method.

A method for forming a heat exchanger plate includes: securing a wave form metallic sheet to a heat exchanger plate substrate, the substrate comprising a first face and a second face opposite the first face, the securing of the wave form metallic sheet being to the first face; and removing peaks of the sheet.

A method includes: an inner pipe insertion step of inserting an inner pipe to between a cored bar and a metal movable claw; a designated section corrugated portion formation step of forming a corrugated portion in a first designated section by pressing the first designated section of the inner pipe radially inward by the metal movable claw and plastically deforming the first designated section; a movable claw moving step of moving the metal movable claw outward in the radial direction of the inner pipe; and an inner pipe moving step of moving a second designated section that is the next designated section to between the cored bar and the metal movable claw.

A method for forming heatsink tube includes cutting a base sheet plate into a first molded frame and a second molded frame, applying a flux on an inner face of the first molded frame and the second molded frame, mounting the first molded frame on a heatsink fin module, and mounting the second molded frame on the first molded frame, to assemble the first molded frame, the heatsink fin module, and the second molded frame, and to form a heatsink tube. The first molded frame has a first end faceplate and two first connecting portions. The second molded frame has a second end faceplate and two second connecting portions. Each of the two first connecting portions is formed with a first abutting section, and each of the two second connecting portions is formed with a second abutting section.

A method for forming heatsink tube includes cutting a base sheet plate into a first molded frame and a second molded frame, applying a flux on an inner face of the first molded frame and the second molded frame, mounting the first molded frame on a heatsink fin module, and mounting the second molded frame on the first molded frame, to assemble the first molded frame, the heatsink fin module, and the second molded frame, and to form a heatsink tube. The first molded frame has a first end faceplate and two first connecting portions. The second molded frame has a second end faceplate and two second connecting portions. Each of the two first connecting portions is formed with a first abutting section, and each of the two second connecting portions is formed with a second abutting section.

A method for forming a heat exchanger plate includes: securing a wave form metallic sheet to a heat exchanger plate substrate, the substrate comprising a first face and a second face opposite the first face, the securing of the wave form metallic sheet being to the first face; and removing peaks of the sheet.