Abstract: A method for welding a metal part with a laser that generates a laser beam, where the method includes manually feeding successive portions of a filler material adjacent the metal part and in a pathway of the laser beam, generating the laser beam for melting the filler material, and cooling the melted filler material for fusing the filler material to the metal part. The method further includes controlling an intensity of the laser beam based on a sensed position of a user's hand relative to the laser beam.

Abstract: A control system, for use with a laser that generates a laser beam, includes a sensor for sensing a position of a hand of a user, and a control for controlling operation of the laser based on the sensed position of the user's hand.

Abstract: A method for forming or remanufacturing a component to have an internal space. A refractory metal blocking element is formed, in situ, with at least a portion to be within the internal space. The formation includes an at least partial melting. A material is added, the blocking element at least partially blocking entry of the material to the internal space. The blocking element is removed.

Abstract: A method of repairing a braze joint and the resulting joint includes removing an unsuitable portion of a first joining material in a joint between a first member and a second member of an aerospace assembly and cleaning the joint. A stripping solution is used to remove the unsuitable portion of the first joining material. A first cleaning solution is used to clean the joint, and the joint is further cleaned using a second cleaning solution. During a rebrazing step, a second joining material moves into a void left by the removed unsuitable portion from the removal step to form a new joint between the first member and the second member that includes the remaining first joining material and the second joining material.

Abstract: Brazed structures comprising hollow components having a closure component bonded thereto by a metallic brazing alloy for closing off an end of the hollow component are disassembled by locating a wire transport material in the hollow component and covering the open face of the hollow component with a wire fiber material. Heat is then applied to liquefy the brazing alloy which is drawn up into the metal wire fiber material by capillary affect created by the wire transport material.