The machine (1) for welding profiled elements comprises: a base frame (2); two retaining members (3, 4) of respective profiled elements (5) made at least partly of plastic and an area to be welded (6), the retaining members (3, 4) being mounted on the base frame (2) and defining a first retaining axis (A) and a second retaining axis (B) forming an angle of welding (7), and along which the profiled elements (5) can be fastened; removal means (8) of material from the profiled elements (5) to make a machining on the area to be welded (6) of the profiled elements (5); heat sealing means (9) mounted on the base frame (2) and adapted to weld the areas to be welded (6) of the profiled elements (5); adjusting means (10) of the angle of welding (7) adapted to move at least one of the retaining members (3, 4) to incline at least one of the first retaining axis (A) and the second retaining axis (B) to change the angle of welding (7); sliding means (11) of the retaining members (3, 4), mounted on the base frame (2) and adapted to move the retaining members (3, 4) in mutual approach or moving away without changing the angle of welding (7).

A manufacturing method of a resin frame includes preparing a plurality of frame members, installing a pair of the frame members in the corner portion in a pair of molds, melting end surfaces of the pair of the frame members as welding margins, and welding the welding margins. The molds respectively includes a reference surface holding the frame members and a blade portion protruding to an inner side with respect to the reference surface. In the welding, in the corner portion, the pair of the frame members are pressed by the blade portions, so that the welding margin protrudes from between the blade portions, the outer peripheral surfaces of the pair of the frame members are bent inward, and the corner portion is made concave with respect to the portions adjacent to the corner portion.

The invention relates to a process (100) for manufacturing an object (1) made of thermoplastic polymer composite from at least two parts (10) made of thermoplastic polymer composite, said thermoplastic polymer composite comprising a fibrous reinforcement and a thermoplastic polymer matrix, said process comprising the steps of: arranging (120) the two parts (10) made of thermoplastic polymer composite adjacently or overlapping at an assembly interface zone (11), and heating (130) to melt the thermoplastic polymer matrix at said assembly interface zone (11), so as to form an object (1) made of thermoplastic polymer composite comprising a welded interface (12).

A resin frame includes frame members combined into a frame shape that includes a corner portion, and a joint portion joining a pair of the frame members which are adjacent to each other at the corner portion. The joint portion includes an entire-surface welded portion, in which end surfaces of the pair of the frame members are welded to each other over an entire surface in a thickness direction of a plate portion of the frame members, and a partial welded portion, in which the end surfaces of the pair of the frame members are welded to each other on one side of the entire surface in the thickness direction while another side of the entire surface in the thickness direction is not welded. The entire-surface welded portion and the partial welded portion are present at different portions on an outer periphery of the joint portion.

Corner joints and methods of forming corner joints are described herein. The corner joints may provide the appearance of a mortise and tenon joint on both the exterior and interior surfaces of the corner joint, but include a mitered connection within the joint. Structures including at least one of the corner joints are also described.

A resin frame includes frame members combined into a frame shape that includes a corner portion, and a joint portion joining a pair of the frame members which are adjacent to each other at the corner portion. The joint portion includes an entire-surface welded portion, in which end surfaces of the pair of the frame members are welded to each other over an entire surface in a thickness direction of a plate portion of the frame members, and a partial welded portion, in which the end surfaces of the pair of the frame members are welded to each other on one side of the entire surface in the thickness direction while another side of the entire surface in the thickness direction is not welded. The entire-surface welded portion and the partial welded portion are present at different portions on an outer periphery of the joint portion.

A component part for a motor vehicle having a hollow profile portion of a fiber-reinforced plastic and a load introduction element of a metal material. The hollow profile portion and the load introduction element are connected in a common connection portion via a nondetachable, glued plug-in connection in which an end portion of the load introduction element and an end portion of the hollow profile portion engage in one another by positive engagement. The end portion of the load introduction element has a spline with teeth extending in longitudinal direction of the common connection portion so that the stiffness of the end portion of the load introduction element reduced in longitudinal direction of the common connection portion.

A resin frame includes frame members combined into a frame shape that includes a corner portion, and a joint portion joining a pair of the frame members which are adjacent to each other at the corner portion. The joint portion includes an entire-surface welded portion, in which end surfaces of the pair of the frame members are welded to each other over an entire surface in a thickness direction of a plate portion of the frame members, and a partial welded portion, in which the end surfaces of the pair of the frame members are welded to each other on one side of the entire surface in the thickness direction while another side of the entire surface in the thickness direction is not welded. The entire-surface welded portion and the partial welded portion are present at different portions on an outer periphery of the joint portion.

A method and a device (10) for welding at least two profiled sections (1) for window or door frames or leaves uses a heating unit (4) introduced between the profiled sections (2, 3) to be joined. At least two heating elements (5, 6) of the heating unit melt the profiled section ends (2, 3) at the end surfaces to be joined. In order to chamfer, in particular remove, a profiled section edge layer (20) of the profiled section ends (2, 3) along the layer surfaces (12, 13) thereof, at least one tool, in particular at least one cutting blade (7, 8), is arranged on the heating elements (5, 6) and is moved such that the material (9) to be melted is displaced into the profiled section interior (11) or into the interior (12) of the profiled section chambers (13). A compression device compresses the profiled section ends (2, 3).

The profiled element (1) comprises: one main portion (2) defining a holding surface (2a) for a central panel (3) of a door/window (4), the main portion (2) being adapted to form a perimeter frame (5) of the door/window (4); one retaining portion (6) which defines an abutment surface (6a) of the central panel (3) and is adapted to fasten the central panel (3) to the perimeter frame (5); and non-removable connection means (7) which connect the main portion (2) to the retaining portion (6) and are adapted to allow the movement of the retaining portion (6) between a raised configuration, wherein it frees superiorly the holding surface (2a), and a retaining configuration, wherein it faces the holding surface (2a).