초록 ▼

Process for the joining of strips and/or sheets of metallic materials, wherein the strips/sheets are introduced converging on one another at an angle into a roll nip, the surfaces coming into contact with one another being heated, but not melted by a laser beam immediately prior to physical contact

Process for the joining of strips and/or sheets of metallic materials, wherein the strips/sheets are introduced converging on one another at an angle into a roll nip, the surfaces coming into contact with one another being heated, but not melted by a laser beam immediately prior to physical contact and the strips/sheets being so pressed together in a directly following joining pass that they are rigidly connected to one another at material surfaces brought into contact.

대표청구항 ▼

[ We claim:] [1.] A process for joining a first metallic sheet to a second metallic sheet, comprising:heating at least a portion of said first metallic sheet which is substantially free of low-melting metallic surfaces with a laser beam to a non-melting temperature immediately prior to introducing s

[ We claim:] [1.] A process for joining a first metallic sheet to a second metallic sheet, comprising:heating at least a portion of said first metallic sheet which is substantially free of low-melting metallic surfaces with a laser beam to a non-melting temperature immediately prior to introducing said first metallic sheet into a roll nip thereby to form a joining zone on said first metallic sheet;introducing said first metallic sheet and said second metallic sheet into said roll nip at an acute angle to each other and offset with respect to their longitudinal axes such that said second metallic sheet overlaps said joining zone and a portion of said second metallic sheet forms an overlap zone which extends beyond a width of said first metallic sheet, said first metallic sheet and said second metallic sheet being pressed against one another with a predetermined pressure in a roll pass of said roll nip so they are joined along said joining zone; andexerting a counter pressure against the overlap zone of said second metallic sheet in said roll pass to prevent shearing off of said overlap zone.