Production of profiles from a starting hollow profile used in automobile construction comprises changing the size of the profile periphery and the shape of the profile cross-section over parts of the length of the profile

摘要

Production of profiles from a starting hollow profile comprises changing the size of the profile periphery over parts (2, 3, 4, 5) of the length of the profile and changing the shape of the profile cross-section over parts of the length of the profile.