The present disclosure discloses a method for improving fatigue strength of a workpiece (100). The method comprises positioning the workpiece (100) in a punch and die assembly (102). Operating the punch and die assembly (102) one or more times to imprint surface features (2) on a portion of a surface of the workpiece (100), wherein the surface features (2) induces compressive residual stresses at a sub-surface level of the workpiece (100), and improves the fatigue strength of the workpiece (100).

The present invention relates to surface modification of materials. In particular the invention relates to a process for surface modification of polymeric materials to make the surface non-stick in order to reduce the ability of materials to stick on it and thus provide an easy flow. The process comprises embossing the surface of an object with a pattern comprising micropillars having different shapes (circle, square, rectangular, polygonal prismatic) with an equivalent circular diameter, height and pitch in the range 10-200 microns; applying a layer of adhesive to get a coverage of 0.1 to 5 mg/cm on the embossed surface either by spray coating or dip coating; depositing 0.2 to 1.2 mg/cm of hydrophobic particles wherein the hydrophobic particles have a particle size in the range 0.1 to 10 microns.

The invention is a method and apparatus for hand-replicating original embossed metal artwork by transferring the three dimensional image of the original design onto one or more molds, including in the preferred embodiment, two moldsone having a positive image of the embossed design, and the other having a negative imagewherein they can be used sequentially, one after the other, to hand-craft and recreate the original design onto additional metal sheets and thus create multiple replicas of the original.

A cushion cover (100), in particular for a vehicle seat (1), includes a surface layer (102) and at least one embossing (120) in the surface layer (102). A cavity (122) on the rear face of the at least one embossing (120) is at least partly filled with an insert (106). A method for producing a cushion cover (100), in particular for a vehicle seat (1), is also provided, including producing a surface layer (102) and at least one embossing (120). The surface layer (102) is provided with the at least one embossing (120) in a tool (10), and a rear face of the at least one embossing (120) is at least partly filled with an insert (106) in an additional method step.

The present invention relates to a door skin comprising an exterior surface having outer portions lying on a first plane, spaced grooves recessed from the plane of the outer portions, and tonal portions having a planar area and a plurality of spaced depressions recessed from the plane of said planar area. The present invention is also directed to a method of etching a plate, for use with a molded die set, for embossing a wood grain pattern in the door skin, and the etched plate formed therefrom.

A method for manufacturing a product having a surface provided with embossments, includes bringing a material web is in contact with a roller. The roller is provided with a relief at its surface, with which, via this relief, embossments are formed in the material web. The roller has a circumference of which, or at least certain parts thereof that are variable, or alternatively the circumference of the roller is variable by making use of embossing elements, wherein the mutual angular position thereof is adjustable.

A door skin featuring a facing having an exterior surface and an interior surface can be provided. A wood grain pattern portion can be formed in the exterior surface of the facing. The wood grain pattern portion can feature a plurality of grooves formed in the exterior surface of the facing, the grooves are recessed from a first plane of the exterior surface, and tonal portions formed in the exterior surface of the facing. The tonal portions can include at least a first protrusion, a second protrusion, and a third protrusion. Spacing between the first protrusion and the second protrusion can be different from spacing between the second protrusion and the third protrusion.

A method for embossing a nanostructure, formed on a nanostructure punch, into a punch surface of a curable material which has been applied to a substrate. The method includes the following steps, especially following sequence: alignment of the nanostructure relative to the punch surface, embossing of the punch surface by a) prestressing of the nanostructure punch by deformation of the nanostructure punch and/or prestressing of the substrate by deformation of the substrate, b) making contact of a partial area of the punch surface with the nanostructure punch and c) automatic contacting of the remaining surface at least partially, especially predominantly, by the prestressing of the nanostructure punch and/or the prestressing of the substrate.

A device for structuring the surface of a metal pressed sheet or of an endless strip, comprising a support device adapted to support the metal pressed sheet or endless strip during structuring, and a spray head and a slideway adapted to permit movement of the spray head into a desired position within a plane defined by an X and a Y coordinate. The spray head is further adapted to move in a Z direction with reference to a work surface which is spanned by the X and Y direction, and the spray head is guided by means of a digitalized template that is identical to the printed image of an impregnated paper used in a further pressing process. Independent drive elements are connected to a control unit and configured to move the spray head into the desired position.

A method for producing a component involves producing a die using an additive production process. A design is embossed in a component material layer of the component by the die. The design is selected and/or created by a customer. This design selected and/or created by the customer is then submitted to an additive production process that produces the die, via a digital platform, which the customer accesses by a customer terminal or via a user program on the customer terminal. The die is then produced by the additive production device in the additive production process corresponding to the submitted design.