To improve strength, rigidity, vibration damping properties and achieve a weight reduction while suppressing an increase in cost.

A carbon fiber reinforced plastic composite metal plate for vehicles according to the present invention includes: a predetermined metal plate; and a mixed resin layer including: a plurality of carbon fiber reinforced plastic layers provided on at least a portion of one surface or both surfaces of the metal plate, the carbon fiber reinforced plastic layers containing a predetermined matrix resin and carbon reinforcing fibers present in the matrix resin; and a resin layer located at least between any layers of the carbon fiber reinforced plastic layers or at the interface between the carbon fiber reinforced plastic layer and the metal plate, the resin layer containing a resin having a Young's modulus of less than 1 GPa and a loss coefficient of 0.01 or more, which is different from the matrix resin.

A method for producing components of an outer skin of a vehicle with a film, which is back-molded at least from one a front side or rear side with clear plastics material, includes subjecting the film to a thermoforming process in order to generate the desired three-dimensional form. The film is subjected to further steps for preparation of the back-molding, including providing the film at least partially with a color layer. The film includes regions, through which other colors are intended to show through and be visible from the front side, or electromagnetic waves are intended to pass. The film may be punched-out in the regions to define punched-out portion in which components are inserted. The components are attached to the film by adhesive and/or overmolding on the rear side.

A chassis assembly having mixed material for reduced mass is provided. The assembly comprises an upper structure comprised of metal. The upper structure has a plurality of first bond surfaces, each of which is parallel with each other at varying elevations relative to a z-axis of a 3-dimensional coordinate thereof. The assembly further comprises a lower structure made of a polymer composite. The lower structure has a plurality of second bond surfaces, each of which is parallel with each other at varying elevations relative to the z-axis thereof. The second bond surfaces are arranged to align with the first bond surfaces in complementing relation such that the lower structure is joined with the upper structure at the first and second bond surfaces. The assembly further comprises an adhesive disposed between the first and second bond surfaces to join the lower and upper structures at the first and second bond surfaces, defining a bond gap between the first and second bond surfaces.

A cowl cross bar assembly of reduced weight and increased stiffness. The cowl cross bar assembly includes a first pipe and a second pipe which are hollow and disposed laterally inside a chassis, pipe caps coupled to one end of the first pipe and the second pipe, and pipe stiffeners accommodated in the first pipe and the second pipe and configured to absorb collision energy generated in a collision of a vehicle.

A vehicle battery pack frame for a vehicle comprising: a base having a length and a width; side members on opposite sides of the base, extending along the length of the base, and attached to a periphery of the base; and crossbeams extending across the width of the base, between the side members; wherein each of the side members comprises a profiled body comprising a sidewall having a first surface facing the cross beams, and an opposite second surface; and a polymer reinforcement attached to the profiled body and facing the second surface of the sidewall of the profiled body.

Discussed is an underbody for a vehicle including a tray member fastened to a lower portion of a vehicle body frame and including a receiving portion having a structure with an open lower surface to accommodate a battery module; and a cover member to cover the open lower surface of the receiving portion, wherein the cover member includes a flow path to circulate a refrigerant fluid.

In a metal-fiber reinforced plastic (FRP) composite, the FRP and the metal member are bonded together, so internal stress (thermal stress) is generated due to the misfit of coefficients of thermal expansion of the metal member and the FRP. Not only does the binder layer peel off and the mechanical properties of the FRP cannot be obtained, but also defects in appearance (surface strain) occur. Therefore, the technical problem is to secure the mechanical properties as a composite while easing the internal stress and keeping surface strain from being generated.

The metal-fiber reinforced plastic (FRP) composite according to the present invention solves the technical problem by sandwiching an FRP between two metal members and not having at least one of the metal members joined (bonded) with the FRP. Further, it is possible to arrange an intermediate member between the other metal member and the FRP and sandwich the FRP between the two metal members through the intermediate member.

A method is provided of producing a component part for a motor vehicle. That method includes the steps of molding a first portion of an integral body from a chrome-platable material and molding a second portion of the integral body from a molded-in-color, non-platable material. This is followed by the applying of a chrome plate layer to the chrome-platable material. A component part or exterior grille made without masking and painting steps is also disclosed.

A plurality of metallic bulkheads fixed at predetermined intervals inside a side sill includes a partition wall portion partitioning an inner space of the side sill and a bonding flange portion formed to surround an outer periphery of the partition wall portion and bonded to an inner surface of the side sill and has an I-shaped cross-section. The partition wall portion of one bulkhead fixed to an upper curved portion is disposed to be substantially parallel to a radial direction passing through a curved center of the upper curved portion such that the partition wall portion is propped to prevent the upper curved portion from being crushed when a collision load in a front and rear direction is input to a pillar portion of the side sill to prevent the collapse deformation of the pillar portion.

A vehicle roof capable of ensuring a rust prevention property while preventing or reducing the increase in cost is provided. A vehicle roof includes an attachment part to which a hinge is attached. The attachment part includes a steel plate, and a first resin layer covering a surface of the steel plate on the side on which the hinge is located. The surface of the steel plate of the attachment part on the side on which the hinge is located is coated with a first resin layer. The first resin layer is thicker than a hinge resin layer covering the hinge. According to the structure of the vehicle roof, it is possible to ensure a rust prevention property while preventing the increase in cost.