Abstract: A processing head (1) for surface processing by means of a laser beam is disclosed. The processing head (1) comprises a through passage (2) for a laser having a longitudinal axis (A), at least one powder supply passage (3) and a cooling passage (4) for cooling the processing head (1). The processing head (1) is at least configured of two parts and comprises a body (5) and a sleeve (6). The sleeve (6) is suitable for the arrangement at the body (5). The through passage (2) of the laser and the powder feed channel (3) are configured in the body (5). The body (5) at least partly forms a first sidewall of the cooling passage (4). The sleeve (6) at least partly forms a second sidewall of the cooling passage (4).

Abstract: The invention relates to a zinc-free spray powder for thermally coating a substrate, in particular for thermally coating a bearing part of a bearing apparatus, which spray powder has the following composition except for unavoidable contaminants: tin=5% to 30% weight percent; aluminum=0.1% to 5% weight percent; iron=at most 1% weight percent, and copper=difference to 100% weight percent. The invention furthermore relates to a layer system applied via thermal spraying, a work piece, particularly a connecting rod, as well as a spray method for manufacturing a spray layer.

Abstract: The invention relates to a method for starting a recipe in a plasma torch, the method comprising the following steps: adjusting of a current to a current nominal value adjusting of a gas flow to a gas nominal value characterized in that when adjusting the gas flow to the gas flow nominal value, the current is adjusted such, that it always is below the current nominal value, so that it does not result in a power hill.

Abstract: The invention relates to a spray powder with a superferritic iron-based compound for the thermal coating of a substrate, wherein the spray powder includes, apart from impurities, a chemical list from the list of chemical elements consisting of C, Mn, Cr, Mo, Ni, Nb, P, S, Si, Fe, Al, O, and Zr. In accordance with the invention, the spray powder has the following chemical composition: C at a maximum up to 0.7% by weight, Mn at a maximum up to 0.7% by weight; Ni at a maximum up to 0.5% by weight, Nb at a maximum up to 1.2% by weight, Pat a maximum up to 0.1% by weight, S at a maximum up to 0.1% by weight, Si at a maximum up to 0.2% by weight, Cr in the range from 20% to 40% by weight, Mo in the range 2.0% to 6% by weight, and a ceramic component Al2O3/ZrO2 up to a maximum of 50% by weight, with the remainder being Fe, and otherwise a total of a maximum of 0.4% by weight of further chemical components being contained as impurities.

Abstract: A processing head (1) for surface processing by means of a laser beam is disclosed. The processing head (1) comprises a through passage (2) for a laser having a longitudinal axis (A), at least one powder supply passage (3) and a cooling passage (4) for cooling the processing head (1). The processing head (1) is at least configured of two parts and comprises a body (5) and a sleeve (6). The sleeve (6) is suitable for the arrangement at the body (5). The through passage (2) of the laser and the powder feed channel (3) are configured in the body (5). The body (5) at least partly forms a first sidewall of the cooling passage (4). The sleeve (6) at least partly forms a second sidewall of the cooling passage (4).

Abstract: The invention relates to a powder flow nozzle, to a receiver unit and to a processing head for an apparatus for a processing of material with a laser. In order to enable a simple exchange of the powder flow nozzle it is suggested in accordance with the invention that an outer contour of a mounting spigot (11) of the powder flow nozzle (10) monotonously tapers in a plug-in region (16) in the plug-in direction (14).

Abstract: The invention relates to a thermal spraying material (5) for the coating of a surface of a workpiece by means of a thermal spraying method, wherein the spraying material (5) contains zinc. The invention further relates to a thermal spraying method and to a thermally sprayed coating sprayed with the material (5).

Abstract: The invention provides for a cylinder bore coating system that includes at least one cylinder bore configured to receive an axially movable piston. The at least one cylinder bore has a recessed area having an axial length and a radial depth. A first coating layer is arranged within at least the recessed area. A second coating layer covers the first coating layer and a portion of the at least one cylinder bore axially spaced from the recessed area.

Abstract: A process for epitaxial deposition of compound semiconductor layers includes several steps. In a first step, a substrate is removably attached to a substrate holder that may be heated. In a second step, the substrate is heated to a temperature suitable for epitaxial deposition. In a third step, substances are vaporized into vapor particles, such substances including at least one of a list of substances, comprising elemental metals, metal alloys and dopants. In a fourth step, the vapor particles are discharged to the deposition chamber. In a fifth step, a pressure is maintained in the range of 10^?3 to 1 mbar in the deposition chamber by supplying a mixture of gases comprising at least one gas, wherein vapor particles and gas particles propagate diffusively. In a sixth optional step, a magnetic field may be applied to the deposition chamber. In a seventh step, the vapor particles and gas particles are activated by a plasma in direct contact with the sample holder.

Abstract: To allow a simple and thus inexpensive coating of a part surface of a workpiece, it is proposed in accordance with the invention that the screening element (15, 19) is magnetic at least during an application of a magnetizable coating material. The screening element (15, 19) is demagnetized for removing the accumulated coating material. The coating material accumulated on the screening element (15, 19) can thus be removed very easily and fast and thus inexpensively.

Abstract: A component stack is coated such that, during a first coating pass, a first angle (?) is formed between the first stack opening surface and the coating beam and, during a second coating pass, a second angle (?) is formed between the first stack opening surface and the coating beam, wherein the first angle (?) and the second angle (?) are formed in opposite directions relative to the first stack opening surface.