A method for welding two components is provided. The method includes providing a first component, which has a convex elevation, and providing a second component, which has a through-hole. The method also includes placing the two components one against the other such that the convex elevation of the first component protrudes into the through-hole in an interlocking manner, and welding the two components along the rim of the through-hole by way of a laser welding device. The welding is performed without the use of a welding filler and the laser welding device is repeatedly switched on and off in a pulsed manner during the welding of the two components along the rim of the through-hole.

A method of laser welding a workpiece stack-up (10) of overlapping steel workpieces (12, 14) involves heat-treating a region (64) of the stack-up (10) followed by forming a laser weld joint (66) that is located at least partially within the heat-treated region (64). During heat-treating, one or more pre-welding laser beams (68) are sequentially directed at a top surface (20) of the workpiece stack-up (10) and advanced along a pre-welding beam travel pattern (70) so as to reduce an amount of vaporizable zinc within the stack-up (10). Thereafter, the laser weld joint (66) is formed by directing a welding laser beam (82) at the top surface (20) of the workpiece stack-up (10) and advancing the welding laser beam (82) along a welding beam travel pattern (84) that at least partially overlaps with a coverage area of a pre-welding beam travel pattern (70) or a shared coverage area portion of multiple pre-welding beam travel patterns (70). The method can help reduce an amount of vaporizable zinc within the stack-up (10).

A technique for producing tailored metal blanks composed of two pieces having different thickness involves modifying at least one piece to include a transition region. A thickness of a modified piece changes over the transition region so that a substantially similar thickness is provided along a joint of the two pieces. The two pieces, subsequent to modification, are joined via a welding process, which may be a laser welding process or a friction stir welding process.

Laser cutting process to produce n trimmed sub-blanks, n being an integer strictly greater than 1, from a mother blank made of metallic material, having the following steps: Op1/ positioning the mother blank on a cutting table having n laths arranged to be moveable relative to one another in a transverse direction, Op2/ clamping at least part of the mother blank to the cutting table, Op3/ cutting, using a laser source, n untrimmed sub-blanks from the mother blank in a longitudinal cutting direction, Op4/ separating the n laths of the cutting table from one another in a transverse direction, Op5/ releasing the clamping, Op6/ clamping the n untrimmed sub-blanks to the n laths, Op7/ laser trimming the n untrimmed sub-blanks in order to form n trimmed sub-blanks, Op8/ releasing the clamping, Op9/ discharging the n trimmed sub-blanks from the cutting table.

A laser-welded lap joint includes a weld zone formed by joining a plurality of steel sheets one over another together by laser welding. The weld zone has a J shape and includes a main weld zone having a linear weld line shape and a weld terminal end zone having an arcuate or circular weld line shape. The length L.sub.1 of the main weld zone is or more and or less of the full length L of the weld zone represented by formula (1). The radius R of the weld terminal end zone satisfies formula (2). The angle of the weld terminal end zone satisfies formula (3). The total size of a gap between the plurality of steel sheets in a lapped portion is 0% or more and 15% or less of the total thickness of the plurality of steel sheets.

A metal substrate provided with surface textures wherein different texture patterns are provided over predefined surface areas of the metal substrate and wherein the different texture patterns are tailored to predefined surface properties of a product which is to be made out of the metal substrate as well as to a method for applying such surface textures on the metal substrate.

A method for the remote laser welding of at least two metal sheets, where at least one metal sheet has a coating with a low boiling point, in particular for welding galvanized steel sheets, includes moving a laser beam at a welding velocity along a welding contour in order to produce a weld seam. The laser beam executes an oscillating movement which is superposed on the welding velocity, where the energy input into the joint is controlled by a power modulation, dependent on the oscillating movement, such that the energy input increases in at least one lateral oscillation periphery or a preceding oscillation periphery of the melt bath volume, but the size of the melt bath surface in the root area remains unaffected.

The disclosure relates to a method for welding sheets provided with an aluminum silicon anti-corrosion coating, wherein chronologically before the welding, the aluminum silicon layer on the sheets in the region of the weld joint and the underlying intermetallic interlayer between the base material and the anti-corrosion coating is passed over with a laser and as a result, on the one hand, material of the aluminum silicon layer and the underlying intermetallic interlayer is vaporized and aspirated and on the other hand, a reaction with the base material extending into the base material is produced so that a metallic reaction ablation layer or alloying ablation layer is produced, which has iron and possibly alloying elements from the base material and aluminum silicon from the aluminum silicon layer and the intermetallic interlayer, the reaction layer reaching a thickness of 5 m to 100 m.

A method for producing a welded blank (1) includes providing two precoated sheets (2), butt welding the precoated sheets (2) using a filler wire. The precoating (5) entirely covers at least one face (4) of each sheet (2) at the time of butt welding. The filler wire (20) has a carbon content between 0.01 wt. % and 0.45 wt. %. The composition of the filler wire (20) and the proportion of filler wire (20) added to the weld pool is chosen such that the weld joint (22) has (a) a quenching factor FT.sub.WJ: FT.sub.WJ0.9FT.sub.BM0, where FT.sub.BM is a quenching factor of the least hardenable substrate (3), and FT.sub.WJ and FT.sub.BM are determined: FT=128+1553C+55Mn+267Si+49Ni+5Cr79Al2Ni.sup.21532C.sup.25Mn.sup.2127Si.sup.240CNi4NiMn, and (b) a carbon content C.sub.WJ<0.15 wt. % or, if C.sub.WJ0.15 wt. %, a softening factor FA.sub.WJ such that FA.sub.WJ>5000, where FA=10291+4384.1Mo+3676.9Si522.64Al2221.2Cr118.11Ni1565.1C246.67Mn.

Provided are a plate-material abutting device that easily adjusts a plurality of abutted positions between a plurality of pairs of abutted portions in plate materials, and a plate-material abutting method. The plate-material abutting device is employed for joining a first plate material and a second plate material in a state of being abutted to each other. The first plate material includes a first abutted portion and a second abutted portion that is different from the first abutted portion. The second plate material includes a third abutted portion corresponding to the first abutted portion, and a fourth abutted portion corresponding to the second abutted portion. The plate-material abutting device includes a first abutting mechanism for abutting the first and third abutted portions to each other, and a second abutting mechanism that moves independently from the first abutting mechanism and that abuts the second and fourth abutted portions to each other.