in a method for producing a solder deposit in a metal sheet, a depression is made in a topside of the metal sheet through deep drawing, thereby causing material to protrude on a bottom side of the metal sheet. The metal sheet is then subjected to a material forming process to produce a collar such that the collar projects in relation to the topside. The collar is then at least partially pressed in a direction of the depression to reduce a cross-sectional area of a mouth of the depression, and the protruding material on the bottom side is completely pushed back so that the bottom side in a region of the depression is in one plane with neighboring regions of the bottom side.

A laser processing apparatus 3 includes: a laser head H; a conveying device 4 that conveys a workpiece W; a head driving mechanism that moves the laser head H; a dust collecting box 60 that moves below the workpiece W and follows the laser head H such that the dust collecting box 60 is disposed below the laser head H; an outer support roller 81 and an inner support roller 82 that are provided at an opening 61 of the dust collecting boz 60 and are rotatable around an axis parallel to a width direction orthogonal to a conveying direction Fy; and a counter roller 9 that rotates the outer support roller 81 in synchronization with a conveying operation of the workpiece W by the conveying device 4. The counter roller 9 transmits motive power of the conveying device 4 as a belt conveyor to the outer support roller 81.

Sensor data generated by a sensor of a computer numerically controlled machine can be compared with a forecast. The forecast can include expected sensor data for the sensor, over a course of an execution plan for making a cut with a movable laser cutting head. The sensor data can be generated during execution of the execution plan. During execution of the execution plan, the sensor data can be monitored and a deviation of from the forecast can be detected. It can be determined, based on the detecting, that an anomalous condition of the computer numerically controlled machine has occurred. Based on the determining, an action can be performed.

A component loading-welding system for welding a component panel to a vehicle body panel includes a rotation portion body having first and second opposing sides. The first opposing side is coupled to a robot arm. A picking device is installed in the rotation portion body and is configured to hold and release the component panel. A vehicle body pressurizing tip is installed in the rotation portion body. A pressurizing portion body is rotatably installed at the second opposing side of the rotation portion body. A pin clamp is installed in the pressurizing portion body and is configured to clamp the component panel. A component pressurizing tip is installed in the pressurizing portion body and is configured to apply pressure to the component panel. A multi point projection welding method is also disclosed.

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 light guide device includes a first light guide part, a polygon mirror, and a second light guide part. The first part reflects and guides a laser light emitted from a laser generator. The polygon mirror rotates and includes reflective parts. The reflective parts are arranged to form a regular polygonal reflective surface when viewed in a rotation axis direction, the polygon mirror reflecting the light guided by the first part by the reflective part while rotating. The second part reflects the light reflected at the reflective part and guides the light so that the light is irradiated to the workpiece at each of the reflective parts. The reflective part reflects the incident light so that the optical axis of the incident light offset in the rotation axis direction. At least two reflective parts differ from each other in position in the rotation axis direction.

There is provided a resistance spot welding apparatus including a first rod-shaped electrode body, second rod-shaped electrode body, first ring-shaped member, second ring-shaped member, first elastic body, and second elastic body. The first rod-shaped electrode body and second rod-shaped electrode body are arranged facing each other, the first rod-shaped electrode body is inserted into a through hole of the first ring-shaped member, the first elastic body is connected to an opposite side of first ring-shaped member to second rod-shaped electrode body side, the first rod-shaped electrode body and first ring-shaped member are not electrically connected to each other, the second rod-shaped electrode body is inserted into a through hole of the second ring-shaped member, the second elastic body is connected to an opposite side of second ring-shaped member to first rod-shaped electrode body side, and the second rod-shaped electrode body and second ring-shaped member are not electrically connected each other.

The present invention provides a resistance spot welding method. A resistance spot welding method according to the present invention in which a sheet combination of two or more overlapping steel sheets is sandwiched between a pair of electrodes and joined together by applying current while applying pressure, the method including a main current application step in which current application is performed with a current I.sub.w (kA), and subsequently, a post-tempering heat treatment step in which after cooling is performed for a cooling time t.sub.ct (ms) shown in formula (1) below, current application is performed with a current I.sub.t (kA) shown in formula (2) below for a current application time t.sub.t (ms) shown in formula (3) below: 800?t.sub.ct . . . formula (1), 0.5?I.sub.w?I.sub.t?I.sub.w . . . formula (2), and 500?t.sub.t . . . formula (3).

A cutting apparatus comprising a cutting table and a first cutting material belt movably supported about the cutting table about a first roller and a second roller. A second cutting material belt is removably supported above the first cutting material belt about the first roller and a third roller, wherein the second roller is intermediate the first roller and the second roller.

A multiple spot vaporizing foil actuator weld (VFAW) system includes a target sheet layer secured relative to a stabilizing component, such that standoff components may be arranged sandwichably between the target and a flier sheet layer. An electrically insulating layer separates the flier from a vaporizing component sheet layer, which may comprise at least two vaporizing subsections configured to have less conductive material than at least three dividing subsections that separate the vaporizing subsections. The geometry and/or other features of the vaporizing subsections may be varied to optimize the vaporization. A second electrically insulated stabilizing component may sandwichably secure the above components between the first stabilizing component in order to control the forces generated in the VFAW process. The method involves loading the vaporizable component sheet layer with electrons via applied voltage such that the vaporizing subsections sublimate. The rapidly expanding gas particles accelerate the flier, completing the weld.