摘要:
A different-material joining structure includes a plurality of different types of plate materials stacked on one other and secured by means of a rivet. The plate materials include a first member and a second member of which end surfaces at one end of each overlap each other, and a third member arranged overlapping the surface of the first member on the opposite side to the second member. The rivet has a shank part penetrating through the first member and the third member and joined to the second member at a tip end thereof, and a head part not inserted into the third member and remaining on the surface of the third member. A joining part for joining the first member and the third member together is formed in at least a part of an overlapping region of the first member and the third member, on the side toward the other end of the second member relative to the position at which the rivet penetrates.
摘要:
A hand maneuverable laser welding gun for joining metal pieces with a weld of predetermined strength, comprising a laser source, at least one arm provided with an interior which forms a tunnel configured to guide the laser light towards a welding zone to produce the weld, a light trap located on the back side of the welding zone, a light sensor coupled to the trap and operative to detect light, which propagates through the welding zone and output a signal upon detecting the light, and a controller to adjust the power of the beam to produce the weld of the predetermined strength. A welding gun can be equipped with an elongated support column and an optical head axially displaceable along the support column as well as with a first arm mounted to the support column along the path and movable with the head to a welding position in which the arm presses against a front metal piece for joining metal pieces spaced from one another.
摘要:
Die Erfindung betrifft ein Andrücksystem (6) für ein Laserfügesystem (1) zum Aneinanderdrücken von Fügeteilen (Speicherzelle 2, Grundplatte 3) im Bereich einer Fügestelle (5, 5a, 5b), mit - einer Aufnahme (4) zur Aufnahme der Fügeteile (2, 3), - einem Andrückelements (7, 7') zum lokalen Aneinanderdrücken der Fügeteile (2, 3) im Bereich der Fügestelle (5, 5a, 5b), - einem Positioniersystem zur Relativpositionierung des Andrückelements (7, 7') und der Aufnahme (4) und zum Aneinanderdrücken der Fügeteile (2, 3) während des Fügeprozesses, insbesondere umfassend ▪ eine Parallel-Positioniereinrichtung (8, 8') zur Relativpositionierung der Aufnahme (4) und des Andrückelements (7, 7') parallel zu einer Ebene (E) und ▪ eine Schräg-Positioniereinrichtung (9, 9') zur Relativpositionierung des Andrückelements (7, 7') und der Aufnahme (4) schräg, insbesondere quer, zur Ebene (E) und zum Aneinanderdrücken der Fügeteile (2, 3) während des Fügeprozesses.
摘要:
Objects to be welded (12, 14) are joined together by laser welding to form adjacent nuggets (22, 24). When a distance between central axes of the adjacent nuggets (22, 24) is p and a diameter of the adjacent nuggets (22, 24) in the objects to be welded (12, 14) is d, the adjacent nuggets (22, 24) are formed so as to satisfy an equation 1.0
摘要:
A welding target is irradiated with a laser beam so as to form a beam spot that moves relatively with respect to the welding target along a locus having a spiral shape rotating around a rotation center moving in a welding direction. The welding target is welded using the laser beam irradiated with. While the welding target is irradiated with the laser beam, the welding target is irradiated with the laser beam based on an interval coefficient which is a value indicating an overlapping degree of the locus having the spiral shape in the welding direction.
摘要:
Provided is a laser welding method for flat wires in which side surfaces (23a, 23b) at ends of first and second flat wires (20a, 20b) coated with insulating films, the side surfaces (23a, 23b) being stripped of the insulating films, are butted together, and a laser beam (LB) is applied to end surfaces (24a, 24b) of the first and second flat wires to weld together the side surfaces (23a, 23b). This method includes: applying the laser beam (LB) in a loop shape inside the end surface (24a) of the first flat wire to form a molten pool (30); and gradually increasing the diameter of a loop-shaped application trajectory of the laser beam (LB) inside the end surface (24a) of the first flat wire to allow the molten pool (30) to reach the side surfaces (23a, 23b).