A process is provided for welding an assembly of a first tubular component and a second tubular component, the first and second tubular components having first and second cylindrical portions, respectively. The process uses a pressing jig, a pressing tool, a welding jig and a welding head. The process includes: positioning the first tubular component with respect to the pressing jig; clamping the first tubular component against the pressing jig; freely fitting the second cylindrical portion into the first cylindrical portion, the two cylindrical portions being substantially coaxial; placing the second component with respect to the first cylindrical portion and the pressing jig; tightening the second tubular component against the pressing jig; aligning the two fitted cylindrical portions with the pressing tool; and pressing by plastic deformation the first and second cylindrical portions. The first and second pressed tubular components form a rigid assembly, with the two fitted and pressed cylindrical portions defining a fitting and a joint. Additional steps include: positioning the rigid assembly with respect to the welding jig; clamping the rigid assembly against the welding jig; and welding by positioning and orienting the welding head repeatably with respect to the fitting and the joint, where the rigid assembly is positioned with respect to the welding jig along one or more surfaces belonging exclusively to the first component in the pressed state.

Provided is a clamping device for temporarily connecting two ends of a large-pipe element with at least two connection devices and a rigid connection rod, with the connection devices being arranged at the ends of the connection rod. The clamping device is used to connect and secure the plate ends of large pipes and large-pipe elements. The clamping device is, unlike the known tack welds or auxiliary connectors (cleats), mobile, reusable, and versatile. It can be mounted quickly and securely on pipe elements of different diameters in order to reduce the load on the tack weld and, in the event of tack weld failure, take the place of it.

A supporting device for supporting a workpiece for processing in a laser processing machine includes a base carrier having a guide body for fastening the supporting device in the laser processing machine, and a guide device provided on the base carrier for guiding the workpiece. The guiding device includes at least two guide elements, which are adjustable in distance to one another and on which the workpiece rests. The guide device has two slides, which are movable relative to the base carrier. At least one of the at least two guide elements is provided on each slide. The two slides are movable in coupled fashion, along two guides that are arranged at an angle to each other and are provided on the base carrier.

A supporting device for supporting a workpiece for processing in a laser processing machine includes a base carrier having a guide body for fastening the supporting device in the laser processing machine, and a guide device provided on the base carrier for guiding the workpiece. The guiding device includes at least two guide elements, which are adjustable in distance to one another and on which the workpiece rests. The guide device has two slides, which are movable relative to the base carrier. At least one of the at least two guide elements is provided on each slide. The two slides are movable in coupled fashion, along two guides that are arranged at an angle to each other and are provided on the base carrier.

The invention relates to a method for handling a rectifier of a turbojet of an aircraft, the rectifier having an axis defining the asymmetry thereof, said method comprising a step of placing the rectifier on the rollers of a supporting structure, the structure and the rollers thereof being arranged such that the axis of the rectifier is inclined at a non-null acute angle in relation to the horizontal, and a step of controlling, maintaining, assembling, handling, storing, deburring and/or cleaning the rectifier, during which the rectifier is pivoted about the axis thereof. The invention also relates to a trolley for handling a rectifier for an axial turbojet, said trolley comprising at least two of the lower rollers that have axes inclined in relation to the horizontal of said angle and at least one upper roller, the axis of which is inclined in relation to the vertical of said angle.

A welding mechanism for welding different blank sections includes a welding device and a carrier. The carrier has a base, two opposite positioning members, an operating set disposed between the positioning members and driven by a power source, and a holding member and a pushing member which are respectively disposed relative to the positioning members. The blank sections, including a front section and a rear section, are separately placed on the operating set. The front section is restricted by the holding member. The pushing member pushes the rear section, so the two sections meet at a joint. When the two sections rotate synchronously along with the rotation of the operating set, the welding device welds the two sections at the joint circumferentially to produce a bi-compositional screw, thereby preventing the generation of air and pores inside the joint after welding, increasing processing quality, and reducing processing costs.

A welding mechanism for welding different blank sections includes a welding device and a carrier. The carrier has a base, two opposite positioning members, an operating set disposed between the positioning members and driven by a power source, and a holding member and a pushing member which are respectively disposed relative to the positioning members. The blank sections, including a front section and a rear section, are separately placed on the operating set. The front section is restricted by the holding member. The pushing member pushes the rear section, so the two sections meet at a joint. When the two sections rotate synchronously along with the rotation of the operating set, the welding device welds the two sections at the joint circumferentially to produce a bi-compositional screw, thereby preventing the generation of air and pores inside the joint after welding, increasing processing quality, and reducing processing costs.

A joining sleeve configured to connect internal liners of two internally lined pipe sections across a welded pipe section joint and a method of use is disclosed. The joining sleeve comprises a sleeve body having a first end and a second end, the first and second ends configured to couple with opposing ends of first and second internal liners respectively. A collar is disposed around the outer surface of the sleeve body, the collar having a first retracted condition in which it has a first outer diameter, and a second expanded condition in which it has a second outer diameter, larger than the first outer diameter.

A pipe welding stabilizer comprising a vise grip assembly, an adjustment assembly, and a pipe assembly. The vise grip assembly includes two vise grips mounted to either side of an adjustment assembly. The two vise grips include jaws with ridges that can be attached to a pipe surface. The vise grips help hold the pipe in place while it is being soldered to ensure it does not slip or fall before it is welded. The adjustment assembly includes pins that can be pushed in to adjust the width and reach of the grip of the two vise grips.

A pipe processing tool that is configured to deform the end of a pipe so that the circumferential shape of the end of the pipe generally matches the circumferential shape of an adjacent pipe end. Matching the circumferential shapes of the pipe ends is advantageous during a pipe attachment process. The pipe processing tool can include a deformation ring with a plurality of pipe deformation members. Each pipe deformation member faces radially inward and is actuatable in a radial direction toward and away from the center of the deformation ring in order to permit engagement with the pipe. Each pipe deformation member is individually and separately actuatable from the other pipe deformation members so that the circumferential shapes of the pipes can be altered by controlling suitable ones of the pipe deformation members.