A method for processing surfaces of metal materials, and to a method for roughening a surface of a metal material by using a laser shock forming technology and an application thereof. According to the method, based on a pulse-laser-induced force effect, a micron-imprint mold and a nano-imprint mold are first prepared, and then the molds are used as a template to present surface microstructures of the imprint molds on a surface of a to-be-processed material. The method is simple and efficient. In addition, compared with a conventional method, a micron-structures and nano-structures can be quantitatively prepared on a surface of a metal material, and the surface roughness and the preparation scope are accurate and controllable and can be pre-designed.

The present invention relates to a membrane unit for generating an aerosol in an aerosol therapy device, the membrane unit comprising a membrane (1) having an area (6) comprising a plurality of through-holes for nebulizing a fluid and a flange (7) circumferentially surrounding the area (6), and a substrate (2) having an opening (8) wherein the flange (7) of the membrane (1) is welded to the substrate (2) so that the area (6) is located in the opening (8) wherein the weld (5) comprises at least three discontinuous welds (5c) arranged at a distance from each other a long a circumference of the opening (8) and a first annular weld (5b) circumferentially surrounding the opening (8).

A housing component includes a flange defining a center point and having an end face formed with microstructures in a first region and a second region to increase a local friction coefficient. The microstructures have each a blade shape with a cutting line, the cutting line in the first region being arranged concentrically about a first local center point, and the cutting line in the second region being arranged concentrically about a second local center point. The first and second local center points have different radial distances from the center point of the flange.

Methods for processing a metal substrate for use in a power electronics device are provided. In one example, the method includes placing a metal substrate on a support associated with a laser system. The method includes performing a pulsed laser treatment process on at least a portion of the surface of the metal substrate. The pulsed laser treatment process exposes the at least a portion of the surface of the metal substrate to a plurality of laser pulses to modify a surface roughness of the at least a portion of the surface of the metal substrate. After performing the pulsed laser treatment process, the method includes creating a metallized interface for coupling an electrical component to the metal substrate at the at least a portion of the surface of the metal substrate.

The invention relates to a device for roughening cylinder bores using a beam tool and offering a very high level of process reliability even for a large quantity.

A method of forming a friction surface of a friction member with an increased friction coefficient on the friction surface is described. The method includes forming the friction member including a matrix composite of a first material and reinforcing particles of a second material embedded in the first material, wherein the first material has a lower melting temperature than the second material, and forming the friction surface by melting a surface layer of the first material of the friction member to expose a part of the reinforcing particles and thereby to enable an increase of the friction coefficient of the friction surface of the friction member.

A preparation method for adhesive bonding of magnesium-containing aluminum alloy products includes a magnesium-containing aluminum alloy product including a matrix and a surface oxide layer overlying the matrix. The magnesium-containing aluminum alloy product also includes intermetallic particles at least proximal the surface oxide layer. The method also includes ablating at least some of the intermetallic particles via an energy source, and in the absence of melting of the matrix of the magnesium-containing aluminum alloy product.

Methods, devices, and systems for beam processing of plate-shaped or tubular workpieces are provided. In one aspect, a method includes: generating at least one section of a cutting gap cutting through the workpiece along a cutting line corresponding to at least part of a contour of a workpiece part to be produced from the workpiece by a processing beam, and performing at least one non-joining and non-cutting finishing treatment of the workpiece with a partially cut-out workpiece part at least in one section of at least one finishing zone by the processing beam, the finishing zone extending along the cutting line.

The present invention relates to apparatuses and methods for laser treatment, more particularly laser roughening, of surfaces.

A method for roughening a surface of a body by a laser, the laser acting on the surface of a body and thereby creating recesses in the surface, and the laser thereby being directed and guided onto the surface and set in terms of its power output in such a way that recesses with at least two substantially different depths are created in the surface of the body.