Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: Austenitic Stainless Steel alloy compositions are provided with reduced Ni content. These alloys, combined with a process that includes a martensite thermomechanical treatment with a thickness reduction preferably higher than 65%, provides a new generation of Advanced High Strength Steels with combination of tensile strength and total elongation in the range of 1000 MPa/35-55% to 1350 MPa/25-45% and good formability and weldability properties, which are useful in the manufacture of many products, particularly in the car industry.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: A joint between at least one element of metal material and at least one element of plastic material is obtained by pressing these elements in contact against each other, with a simultaneous application of heat. A cladding of metal material and/or of plastic material is applied above the joint by additive manufacturing technology.

Abstract: A joint between at least one element of metal material and at least one element of plastic material is obtained by pressing these elements in contact against each other, with a simultaneous application of heat. A cladding of metal material and/or of plastic material is applied above the joint by additive manufacturing technology.

Abstract: An auxiliary cross-member structure for supporting elements of a motor-vehicle front suspension includes a metal sheet hollow frame in a form of a hollow shell, with two opposite end portions, for connection of two respective oscillating arms of the suspension. The metal sheet hollow frame is defined by a single metal sheet folded on itself and having portions which are overlapped and welded. In a preferred implementation, within the metal sheet hollow frame is provided an additional filling structure at least partially constituted of synthetic material or composite material incorporating reinforcing fibers. At each end of the auxiliary cross-member structure there are two pairs of holes aligned with each other along two vertical axes which are used both for mounting elastic bushings for connection of a respective oscillating arm, and for the engagement of connecting screws for connecting the auxiliary cross-member structure to the motor-vehicle body.

Abstract: A structural joint between two components of metal material is obtained by carrying out an electrical resistance welding spot between said components and subsequently performing a step of applying a cladding of metal material by an additive manufacturing technology. In one example, after a first step of applying a coarse base cladding, a second step of applying a fine cladding is carried out, again by additive manufacturing technology. The fine cladding can include a distribution of stiffening micro-ribs above the base cladding. The same method can also be applied to a single sheet metal component, rather than to a welded joint.

Abstract: An auxiliary cross-member structure for supporting elements of a motor-vehicle front suspension includes a metal sheet hollow frame in a form of a hollow shell, with two opposite end portions, for connection of two respective oscillating arms of the suspension. The metal sheet hollow frame is defined by a single metal sheet folded on itself and having portions which are overlapped and welded. In a preferred implementation, within the metal sheet hollow frame is provided an additional filling structure at least partially constituted of synthetic material or composite material incorporating reinforcing fibers. At each end of the auxiliary cross-member structure there are two pairs of holes aligned with each other along two vertical axes which are used both for mounting elastic bushings for connection of a respective oscillating arm, and for the engagement of connecting screws for connecting the auxiliary cross-member structure to the motor-vehicle body.