An attachment part for connecting to a structural part. The attachment part has an attachment part longitudinal axis, and a weld portion to be welded to the structural part by torsional ultrasonic welding. The weld portion has a contact surface for contact with a torsion sonotrode, and a weld surface for connecting to the structural part. The weld portion is delimited, at least portionally, by an inner vibration decoupling zone. The inner vibration decoupling zone, at least portionally, surrounds an inner portion of the attachment part.

An elastomeric composite polyurethane skin having an average flexural modulus, measured in accordance with ASTM D790-03, smaller than 35 MPa is disclosed. The elastomeric composite polyurethane skin includes a first aliphatic polyurethane layer made from a first polyurethane reaction mixture having at least one isocyanate compound with at least two NCO-groups which are not directly attached to an aromatic group, at least one isocyanate-reactive component (B1), and at least one catalyst component (C1) substantially free of lead, and a second aromatic polyurethane layer made from a second polyurethane reaction mixture having at least one aromatic isocyanate compound (A2), and at least one isocyanate-reactive component (B2).

Proposed are an apparatus and a method for manufacturing an interior material for a vehicle, in which a core and a skin can be integrated by a pressing operation. The apparatus includes a first mold unit having a first molding surface, and a second mold unit having a second molding surface corresponding to the first molding surface. The core is mounted on the second molding surface. The first mold unit includes a first fixing part, and the second mold unit includes a second fixing part. The first fixing part and the second fixing part are configured to fix an outer peripheral portion of a skin placed between the first mold unit and the second mold unit.

A device for machining a cover for a motor vehicle may have a lower mold having a sealing element and a first recess and a second recess a distance from the first recess. The sealing element is arranged in part in the first recess of the lower mold so that the element extends with respect to a surface of the lower mold. The sealing element and the second recess of the lower mold are formed so as to define a cavity in a predefined manner in cooperation with a lower face of the cover. The device further may have a counter bearing which is designed, when forming the cavity on the lower face of the cover, to exert a counter force on an upper face of the cover towards the lower mold.

Moulded three-dimensional noise attenuating trim part for a vehicle, comprising at least a three layer system consisting of a first porous fibrous layer and a second porous fibrous layer and an air permeable intermediate film layer situated between the first and second porous fibrous layers and wherein the adjacent surfaces within the three layer system are interconnected, wherein the second porous fibrous layer has an area weight AW2 that is varying over the surface and wherein at least for areas of the three layer system with a total thickness t between 5 and 35 mm, the area weight AW2 relates to the total thickness t of the three layer system as following 25*t+175<AW2<45*t+475 wherein t is in mm and AW2 is in g.Math.m−2 and wherein the area weight AW2 of the second porous fibrous layer is increasing with increasing total thickness t of the three layer system.

A microwave heating device includes a variable frequency microwave power supply, a waveguide launcher, and a fixture to contain a material to be heated, with the fixture located directly adjacent to the end of the launcher. All heating occurs in the near-field region. This condition may be insured by keeping the thickness of the fixture or workpiece under one wavelength (at all microwave frequencies being used). The launcher is preferably a horn or waveguide configured to apply the microwave power to a small area to perform spot curing or repair operations involving adhesives and composites. The spot curing may secure components in place for further handling, after which a thermal or oven treatment will cure the remaining adhesive to develop adequate strength for service. A related method is also disclosed.

To provide a method for the production of components, in particular wheel well liners of vehicles, in which the component is produced in a spread out or unfolded form and at a later time is moved into a curved or folded form, wherein in an area of a bending point, a material strength of the component decreases as compared to a material strength of the adjacent area, it is suggested that the minimum thickness of the material in the area of the bending point is molded to be 40% to 60%, preferably 45% to 55%, more preferably about 50% less than the material strength of the adjacent area.

Skin for dressing backlit vehicle interior parts comprising a perforated opaque decorative layer and a light transmitting material filling the holes wherein the light transmitting material is a reactive hotmelt adhesive which forms a base layer extended over the back side of the opaque decorative layer and comprising a central portion and a transition portion surrounding the central portion and several projections protruding from the central portion of the base layer and completely filling the through holes. Method and an installation for manufacturing said skin for dressing backlit vehicle interior parts.

A method including inserting into a mold a first tool having a first surface. The method further includes printing a second tool from a polymer material and inserting the second tool into the first tool. The second tool having a smaller wall thickness than the first tool and including a second surface opposing and in contact with the first surface of the first tool and a third surface formed on an opposite side of the second tool than the second surface.

The invention relates to a sound protection panel for cladding a wall of an automotive vehicle, the panel includes a mass-spring system. The panel has a lower spring layer based on a resiliently compressible material, an upper mass layer based on resiliently compressible foam flakes, the flakes being bound together by a two-component fibre-based bonding agent comprising a core. The core is fusible at a high temperature or infusible, and a sheath fusible at a lower temperature, the flakes being fused with the sheath to form an upper agglomerated layer.