An insert of a die for molding a speaker grille includes a forming member. The forming member defines a forming surface, from which a plurality of pins extend for forming apertures in a speaker grille. The forming surface defines a plurality of apertures disposed at spaced locations between the pins. The apertures are interconnected with a plurality vent channels communicating the apertures with the vent channels for venting air disposed in a die when melted polymer used to form the speaker grill is injected into the die. The forming member and the vent channels are formed as a monolithic construction.

A method of joining first and second layers of material according to the principles of the present disclosure includes applying a layer of adhesive between the first and second layers and allowing the adhesive layer to at least partially cure. The method further includes piercing the first layer with a headless end of a rivet after the adhesive layer is cured, deforming the second layer with the headless end of the rivet, and bending the headless end of the rivet radially outward.

A worm gear for a worm gear system of a motor vehicle steering device may include a hub, a support element, and a gear rim. The support element may be a support ring that by means of an injection-molding method is injected between the gear rim and the hub. The support ring may connect in a form-fitting manner the hub and the gear rim. The gear rim and the support element may configure a multiplicity of teeth. The support element may have support webs that penetrate the gear rim such that radially outward pointing end sides of the support webs are exposed.

A hybrid reinforcement material (18) is disclosed that includes a plurality of reinforcement fibers (12) and a plurality of carbon fibers (14) comingled with the reinforcement fibers (12). The reinforcement fibers (12) are selected from natural fibers, organic fibers, and inorganic fibers and form a single hybrid assembled roving with the carbon fibers (14). The carbon fibers (14) are post-coated with a compatibilizer. The hybrid assembled roving (18) may be formed using a hybrid of glass and carbon fibers.

There is provided a resin molded product including a first member and a second member which are laser welded. A laser welded portion includes a first welding portion which is welded by laser welding of galvano method and a second welding portion which is welded by laser welding of flash method or laser welding of scanning method.

A thigh-extension for a vehicle seat includes a metallic thigh-extension plate, an extension track defined by a low-friction resin overmolded onto the thigh-extension plate and a thigh-extension slider having an integral groove slidably engaged with the extension track to define a plurality of thigh-extension positions.

A sheet metal member forming method comprises placing a fiber bundle of a predetermined length, via a thermosetting resin, in a predetermined position on a surface of a sheet metal member, forming a coating film on at least a part of the sheet metal member after the placing of the fiber bundle, and while heating and drying the coating film, heat-curing the thermosetting resin to bond the fiber bundle to the sheet metal member.

A composite frame for vehicles formed with a honeycomb or similar core laminated on the top and bottom sides with a layer of material joined by an adhesive layer. One or more structural beams or stringer are interposed between the top and bottom layer of the composite frame running part or all of the length or width of the composite frame. Each of these structural members may also be joined to the top and bottom material as well as the adjacent honeycomb or by a layer of adhesive or by other means. One embodiment of the frame may be perfectly flat along a horizontal axis. A second embodiment may conform to any curvature, angle or combination specified.

A method for producing a damper for an air line of an internal combustion engine includes the following steps: providing a temperature-controlled inner part having passages; producing a tubular preform of an outer jacket from a thermoplastic melt; and attaching the temperature-controlled inner part to a blowing mandrel of a blow mold, which is open. The blowing mandrel has outlet openings and the passages are positioned over the outlet openings. The method further includes bringing the temperature-controlled preform over the inner part and closing the blow mold such that the preform is blown against the walls of the blow mold, whereby an outer jacket is obtained. Simultaneously, local connections between the inner part and the outer jacket are obtained by pressing the preform and the inner part against each other in some regions. Finally, the blow mold is opened and the damper is removed.

Microstructured composite material, comprising a matrix, comprising at least one sort of a thermoplastic plastic material and, distributed homogenously in the matrix, at least one sort of lignin and/or at least one lignin derivative, characterized in that the at least one sort of lignin and/or at least one lignin derivative is present in particulate form and the cross-sectional area of the particles has a round, approximately round, circular, approximately circular, elliptical or approximately elliptical geometry.