This torsion beam manufacturing method is a method for manufacturing a torsion beam which is provided with a uniformly shaped closed cross-sectional portion in which a cross section orthogonal to a longitudinal direction is a closed cross section having a substantial V-shape or a substantial U-shape with a pair of ear portions, and a shape changing portion which leads to the uniformly shaped closed cross-sectional portion and in which a shape of the closed cross section changes progressively away from the uniformly shaped closed cross-sectional portion, the torsion beam manufacturing method comprising: thickening to form a pair of thickened portions in at least the shape changing portion by pressurizing each of the pair of ear portions from outside against swelling of the pair of ear portions in a slate where both outer surfaces of each of the pair of ear portions are supported.
Torsion beam manufacturing method, torsion beam manufacturing apparatus, and torsion beam
2021-01-12
Patent
Electronic Resource
English
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B21J FORGING , Schmieden / B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern |
TORSION BEAM MANUFACTURING METHOD, TORSION BEAM MANUFACTURING APPARATUS, AND TORSION BEAM
European Patent Office | 2019
|TORSION BEAM MANUFACTURING METHOD, TORSION BEAM MANUFACTURING DEVICE, AND TORSION BEAM
European Patent Office | 2019
|TORSION BEAM MANUFACTURING METHOD, TORSION BEAM MANUFACTURING DEVICE, AND TORSION BEAM
European Patent Office | 2017
|TORSION BEAM MANUFACTURING METHOD AND TORSION BEAM MANUFACTURING APPARATUS
European Patent Office | 2019
|TORSION BEAM MANUFACTURING METHOD AND TORSION BEAM MANUFACTURING APPARATUS
European Patent Office | 2019
|