Producing press bolts such as cast bolts of first length from a body, comprises abutting the ends of a first body and a second body, and welding together the ends in a welding device, which welds the body by weld seam along edges of end

摘要

The method for producing press bolts such as cast bolts or its parts of first length from a body (1, 2), comprises abutting the ends of a first body and a second body, and welding together the ends in a welding device (D), which welds the body by a weld seam (S) completely or along the edges of each end. The first body is a residue of a third body greater than first length, where before juxtaposing the first and second bodies, the residue is prepared by separating cast bolts with the first length from the third body and the residue is shorter than the first length. The method for producing press bolts such as cast bolts or its parts of first length from a body (1, 2), comprises abutting the ends of a first body and a second body, and welding together the ends in a welding device (D), which welds the body by a weld seam (S) completely or along the edges of each end. The first body is a residue of a third body greater than first length, where before juxtaposing the first and second bodies, the residue is prepared by separating cast bolts with the first length from the third body and the residue is shorter than the first length. The second body is a body with greater length than the first length and the first body and second body are connected together to a fourth body. The press bolts with the first length is removed from the fourth body. The second body prior to the welding is separated from a fifth body with length greater than the first length and has a length that corresponds to the first length minus the length of the first body. The first body connected with the second body forms the press bolts with the first length. An end of a sixth body lies to the end of the first or second body before or after the welding, and the sixth body is welded together to the end of first body and/or second body with a welding device through the welding seam along the edges. The sixth body has a length that corresponds to the first length minus the length of the first body and the second body. The first body and the second body have a length that is greater than the first length and that separates to a seventh body press bolt with the first length after the connection to both the bodies. The ends of the first body, second body and optionally the sixth body are aligned together through the production of weld seam along the edges sealed against the surrounding. The press bolts are manufactured in cold conditions of the body. The press bolts are heated after the welding and/or separating and welding. The weld seam is formed using a filler material. The weld seam is produced subsequently by welding the first body and the second body and optionally sixth body. The complete welding is carried out by friction welding. Independent claims are included for: (1) press bolts; and (2) a device for producing press bolts.