APPARATUS FOR LASER WELDING Russian patent published in 2002 - IPC

FIELD: machine engineering, namely apparatuses for laser welding of thin conductors, possibly in electronics, instrument making and machine engineering. SUBSTANCE: in first variant of invention apparatus includes laser and mounted in optical duct of housing: mirror bihedral prismatic divider with rectangular base, reflector and focusing lens. Cone reflector has inlet opening with diameter equal to that of laser beam. Focusing lens is arranged in optical duct of housing. Rectangular base of prismatic divider has length A=Dl.b, where Dl.b. is diameter of laser beam. In second variant of invention prismatic divider is trihedral and it has base in the form of equilateral triangle with side equal approximately to 0.31 Dl.b. Such design of apparatus allows to perform precision welding of thin conductors or shapes simultaneously at both sides at reducing deformation of welded article due to symmetrical arrangement of welding spots. EFFECT: possibility for precision welding of thin conductors. 2 cl, 2 dwg