A method of manufacturing a cylindrical housing of an exhaust-gas treatment unit for vehicles includes providing a flat sheet metal part having at least one embossing, and round bending the sheet-metal part in a round bending tool by displacing the sheet metal part between rolls such that the sheet metal part obtains a cylindrical shape having a longitudinal direction parallel to roll axes of the rolls. At least one elastic roll is used such that the embossing of the sheet metal part is maintained during round bending. The longitudinal edges of the cylindrical sheet metal part are then connected to form a tube. A method of manufacturing an exhaust-gas treatment unit is furthermore shown.

An apparatus for manufacturing a bracket-integrated double-layer door impact beam is provided. The apparatus includes a lower mold having a lower cavity formed with a base material molded to have a U-shaped cross section and a predetermined length. The base material is seated on the lower cavity. A lower electrode terminal is disposed in the lower mold to contact the base material. An upper mold has an upper cavity therein and is coupled with the lower mold to pressurize both end portions of the U-shaped cross section of the base material inward to form the base material with an O-shaped cross section. An upper electrode terminal is disposed in the upper mold to contact the base material.

An apparatus for manufacturing a bracket-integrated double-layer door impact beam is provided. The apparatus includes a lower mold having a lower cavity formed with a base material molded to have a U-shaped cross section and a predetermined length. The base material is seated on the lower cavity. A lower electrode terminal is disposed in the lower mold to contact the base material. An upper mold has an upper cavity therein and is coupled with the lower mold to pressurize both end portions of the U-shaped cross section of the base material inward to form the base material with an O-shaped cross section. An upper electrode terminal is disposed in the upper mold to contact the base material.

A hydraulic roll bending machine and method includes loading a plate between top and bottom rollers, receiving a user input indicative of a desired plate radius, calculating a pre-bend radius for the plate based on the desired plate radius and information from the material database, providing a bending signal to the actuator to position the at least one bending roller relative to the top and bottom rollers based on the pre-bend radius, providing a feed signal to advance a leading portion of the plate against the at least one bending roller, determining an actual pre-bend radius of the leading portion of the plate, and calculating an adjustment to the material database based on a difference between the pre-bend radius and the actual pre-bend radius.

The present invention relates to a method for manufacturing a tank (1) comprising a main body (4) with several compartments (7), a base (6) closing the lower part of the main body (4), and a cover (5) closing the upper part of the main body (4), said method comprising the following steps: shaping sheets to produce the parts making up the tank (1); assembling each of the component parts by butt welding in order to produce the tank (1).

The present invention relates to a method for manufacturing a tank (1) comprising a main body (4) with several compartments (7), a base (6) closing the lower part of the main body (4), and a cover (5) closing the upper part of the main body (4), said method comprising the following steps: shaping sheets to produce the parts making up the tank (1); assembling each of the component parts by butt welding in order to produce the tank (1).

A method of manufacturing an annular component comprises providing an annular shell to form the outer wall of the component and a plurality of flat annular rings wherein a radially inner edge of each ring is shaped to correspond to a cross-section of the shell at a different position along its length. The method comprises attaching each ring to the ring(s) adjacent to it at a plurality of circumferentially spaced discrete positions. The method comprises deforming each flat annular ring into a corrugated three-dimensional shape, wherein the corrugations extend out of the flat plane and comprise radially defined peaks and troughs. The method comprises locating the shell within the plurality of attached, deformed annular rings. The method comprises attaching the plurality of attached, deformed annular rings to the shell to form the component, so that the plurality of attached, deformed annular rings provide structural reinforcement to the shell.

A sliding machine includes: at least one slide fixed to side parts on an upper surface of a main chassis, a second form roller unit positioned to move horizontally on the slide and located between a first form roller unit and a third form roller unit, a servo motor, two spindles of motion that transmit the motion drive to the rollers in a first form roller group, a second form roller group and a third form roller group through the wedge channel formed from one end to the other, at least one motion spindle gear fixed to the end of the spindle of motion, a motor which gives the driving power to the spindle of motion, a reducer positioned on the output shaft of the motor, at least one reducer gear sequentially fixed on the output shaft of the reducer and two sheet metal moving rails.

In a localized torsional severe plastic deformation method for conical tube metal, a desired region of a conical tube metal can be subjected to severe plastic deformation using molds in which roughness is formed at predetermined regions. The method includes roughening a predetermined region of each of the molds; sticking the conical tube metal only to the roughened regions of the molds; moving the lower mold toward the upper mold to apply a load to the conical tube metal; and rotating the molds to apply severe plastic deformation to the conical tube metal only at the regions stuck to the roughened regions of the molds.

A can for packaging food, comprising a metal can body and a diaphragm lid (16) formed of lidding material which comprises a multilayer structure with at least an aluminum layer of from 6 to 90 microns thickness and a bond layer for fixing the lid (16) directly to the can body. One method for forming the can forms the lidding material by using an outwardly extending curl (20) at one end of the metal can body as the draw die. Lidding material which is carried by the body maker punch is drawn around the curl of the can body draw die so as to form the lidding material into a cup shape.