A method for joining a metal material element to a plastic material element, in particular a composite material including a plastic matrix reinforced with fibers for use in the construction of motor-vehicle components. The method involves providing one or more slots in a portion of the plastic material element. For each slot, a corresponding tab is provided in the metal material element, having a shorter width and length than a width and length of the slot. The metal material and plastic material elements are arranged in a position of mutual coupling where each tab is inserted through the corresponding slot and has an end portion protruding beyond said portion of the plastic material element. A laser beam is directed above the protruding end portion, so as to locally melt the metal material of each tab and create an enlarged head on each tab that is welded above the plastic material element.

A method for reducing stress and distortion in a component during a friction welding process includes securing first and second workpieces of the component within an inertia welding machine such that the first and second workpieces are affixed in opposition to each other. The method also includes securing at least one annular support member at least partially around the first workpiece and/or the second workpiece at a location having a reduced cross-section as compared to remaining portions of the first workpiece and/or the second workpiece. Further, the method includes rotating the first workpiece to a predetermined rotational speed. In addition, the method includes engaging the second workpiece with the rotating first workpiece so as to generate frictional heat therebetween, thereby welding the first and second workpieces together. As such, the annular support member(s) supports the location having the reduced cross-section during welding.

The present invention relates to a method for bonding a metal and a resin, including bonding a metal and a resin by high-frequency induction welding via an intermediate resin layer which causes a chemical reaction.

The present invention relates to a method for bonding a metal and a resin, including bonding a metal and a resin by high-frequency induction welding via an intermediate resin layer which causes a chemical reaction.

An apparatus is configured to manufacture a metal-resin composite by press-molding a metal plate and a resin material. The apparatus includes an upper mold and a lower mold for sandwiching the metal plate and the resin material, and an elastic member attached to a molding surface of the lower mold. A cavity for disposing the resin material is provided by the upper mold and the lower mold. The elastic member is disposed to seal the resin material into the cavity by pressing the metal plate against the upper mold.

An apparatus is configured to manufacture a metal-resin composite by press-molding a metal plate and a resin material. The apparatus includes an upper mold and a lower mold for sandwiching the metal plate and the resin material, and an elastic member attached to a molding surface of the lower mold. A cavity for disposing the resin material is provided by the upper mold and the lower mold. The elastic member is disposed to seal the resin material into the cavity by pressing the metal plate against the upper mold.

A method is provided for producing a common connecting opening in two components, at least one of which is made from a plastically deformable material. In the method, at least the edge region of a first prefabricated opening of the first component is softened in order subsequently to introduce a mandrel which displaces the material softened by the heating so that a common connecting opening having a predetermined diameter is obtained.

There is provided a component joining structure that includes: a resin component; a metal tip that is provided in the resin component by insert molding, and that includes protruding portions that protrude from the resin component; and a metal component that is spot welded to the protruding portions, and that is joined to the resin component by an adhesive agent that is provided in gaps formed, by the protruding portions, between the resin component and the metal component.

There is provided a component joining structure that includes: a resin component; a metal tip that is provided in the resin component by insert molding, and that includes protruding portions that protrude from the resin component; and a metal component that is spot welded to the protruding portions, and that is joined to the resin component by an adhesive agent that is provided in gaps formed, by the protruding portions, between the resin component and the metal component.

A method of mechanically securing a first object including a thermoplastic material in a solid state to a second object with a generally flat sheet portion, with a perforation of the sheet portion, and with the sheet portion having an edge along the perforation is provided, wherein the first object is positioned relative to the second object so that the edge is in contact with the thermoplastic material and wherein mechanical vibration energy is coupled into the assembly including the first and second objects until a flow portion of the thermoplastic material due to friction heat generated between the edge and the thermoplastic material becomes flowable and flows around the edge to at least partially embed the edge in the thermoplastic material. After the mechanical vibration stops, the thermoplastic material is caused to re-solidify, whereby the re-solidified thermoplastic material at least partially embedding the edge anchors the first object in the second object.