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.

A welding support block supports, from the rear surface of a joint to be welded, a weld pool created during a welding process. The welding support block comprises a block of metal and an outer layer of ceramic material providing a supporting surface. The ceramic material layer has a thickness between 0.25 mm and 1.5 mm. The metal material immediately beneath the ceramic material layer is made of steel. An internal line-up clamp for holding pipes in end-to-end alignment ready for welding may include multiple such welding support blocks. The use of such welding support blocks is particularly useful when laying a sour service carrying pipeline (high H.sub.2S content).

A fixation apparatus includes a base, a wire fixing device mounted on the base, and a pressing device mounted on the base. The wire fixing device positions and fixes a wire on a circuit board and includes a fixing frame mounted on the base and a moving unit received in a receiving chamber of the fixing frame. The fixing frame has a first positioning groove. The moving unit is movable between a clamping position and a release position and has a second positioning groove coupled with the first positioning groove. The wire is inserted into a wire insertion hole in the circuit board between the first positioning groove and the second positioning groove when the mobile unit is moved to the release position. The wire is clamped and fixed between the first positioning groove and the second positioning groove when the moving unit is moved to the clamping position.

A process for room temperature substrate bonding employs a first substrate substantially transparent to a laser wavelength is selected. A second substrate for mating at an interface with the first substrate is then selected. A transmissivity change at the interface is created and the first and second substrates are mated at the interface. The first substrate is then irradiated with a laser of the transparency wavelength substantially focused at the interface and a localized high temperature at the interface from energy supplied by the laser is created. The first and second substrates immediately adjacent the interface are softened with diffusion across the interface to fuse the substrates.

A method for welding at least three cables, each with two conductors protruding from the sheath ends of the cables includes stripping ends of the first conductors and stacking from opposite directions atop one another forming a first stack. The stripped ends of the second conductors are stacked atop one another from opposite directions at a working distance from the first stack forming a second stack. The first stack is arranged in a welding area of a welding device and welded to a first welding point, while the second stack is arranged in a waiting area spaced by the working distance from the welding area. The first welding point is moved by the working distance from the welding area to a storage area, while the second stack is moved by the working distance from the waiting area into the welding area and is welded to a second welding point.

The present invention makes it possible to weld workpieces to each other efficiently firmly by friction stir welding while reducing labor and man-hours. A friction stir welding method includes a fixing step, a temporary welding step S2, and a main welding step as follows. The fixing step includes fixing the workpieces W1 and W2 to a receiving table by pressing the workpieces W1 and W2 against the receiving table by means of a plurality of spring pins 10 that, are spaced apart from one another. The temporary welding step S2 includes spot-welding the workpieces W1 and W2 to each other by friction stir welding at locations different from positions of the spring pine 10. The main welding step includes line-welding the spot-welded workpieces W1 and W2 to each other by friction stir welding.

A method for producing workpiece parts from a plate-shaped workpiece in a processing machine or laser processing machine includes positioning and holding the workpiece on a workpiece support by clamping devices. A plurality of workpiece parts are cut out of the workpiece with a process beam. The process beam is moved relative to the workpiece support by a processing head and/or the workpiece is moved relative to the workpiece support by the clamping devices. A cutting process for processing the workpiece to produce the workpiece parts is interrupted at least once by a relaxation step for the workpiece. During the relaxation step at least one clamping device is released to relax the workpiece. The at least one clamping device is closed following the relaxation and before continuing the cutting process. A data processing program and a processing machine for producing the workpiece parts are also provided.

The present invention provides a laser welding process and a holding fixture for holding a first and a second body during a laser welding process. A first body and a second body for welding together along at least one weld line to form a joined component are immobilised in the holding fixture by a back clamp and a front clamp of the fixture. A shielding gas is supplied, from respective plenums formed in the back and front clamps, to back and front sides of the component along the weld line. Laser welding the first and second bodies together along the weld line, the laser weld thus-formed penetrating from the front side to the back side of the component.

An apparatus and a method for producing strip wound tube products are disclosed. The apparatus includes a winding machine for winding a strip to a strip wound tube and a finishing machine for cutting off pieces of desired length from the strip wound tube and for connecting strip layers in the end sections of the strip wound tube product by way of an joining operation, the finishing machine having a mobile operating head and/or a force decoupling unit.

A clamp, particularly for apparatuses for welding pipes, including a lower jaw and an upper jaw that are mutually opposite and hinged; each jaw is substantially made of plastic material; advantageously, each jaw includes a portion made of plastic material and at least one insert constituted by an interlocking metallic structure that is co-molded within the portion made of plastic material.