FIELD: transport.
SUBSTANCE: invention relates to automotive industry. Proposed method consists in making steel arched box-like shaped thin-sheet channel with circular conjunctions of rounding. Said channel is produced by plastic surface deformation of outer and inner layers. The base is made of steel box-like thin-sheet shaped channel. Arched thin-sheet channel and bearing surface of arched shaped thin-sheet channel are jointed together by contact welding. Anti-shock zone of box-like channel is confined at its ends by bearing elastic islands to resist shock loads. Thin-sheet box-like channel is composed of the forms of arched thin-sheet channel and bearing surface of arched shaped thin-sheet channel. Simultaneously, bearing surface of arched shaped thin-sheet channel on the side of ends has micrometer rolled patter of surface layer.
EFFECT: higher car safety.
3 dwg
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