Trumpf Werkzeugmaschinen Gmbh + Co. Kg

Martin Bea

Tim Hesse

Tobias Kaiser

Volker Rominger

Patrick Mach

Marcel Birk

In a sleeve for a gas nozzle, a sleeve main body and a sleeve end face is formed at least in part by a wear protection element which is fastened to the sleeve main body and which is composed of a more wear-resistant material than the sleeve main body adjoining the sleeve end face, an inner and/or an outer beveled portion of the sleeve end face are formed at least in part by the wear protection element.

Wear-resistant sleeve for a gas nozzle for encapsulating a cutting gas jet

This disclosure describes laser machining head gas nozzles that have an exit opening for passage of a laser beam onto a workpiece; an annular gap surrounding the exit opening; and a sleeve disposed and guided displaceably within the annular gap for axial displacement between a rearward and a forward position. The sleeve projects beyond the exit opening at least in the forward position, and the sleeve is tiltably mounted in the annular gap.

Gas nozzle having a displaceable valve sleeve

This disclosure relates to methods for cutting metal workpieces in sheet form with a thickness of at least 2 mm. A laser beam is positioned in a nozzle opening of a cutting gas nozzle configured to cut via the laser beam and a cutting gas so that a beam axis of the laser beam along a direction of propagation of the laser beam is at least a distance of 3 mm from a rear opening wall portion of the nozzle opening. Cutting gas configured for concurrently exiting the nozzle opening with the laser beam is emitted through the nozzle opening at a cutting gas pressure (p) of at most 10 bar.

Method for laser cutting with optimized gas dynamics

This disclosure describes laser machining head cutting gas nozzles that include an inner nozzle having a nozzle opening configured to form a core gas flow, an outer nozzle having an annular gap surrounding the nozzle opening and configured to form an annular gas flow, and a sleeve in the annular gap, wherein the sleeve is arranged to be axially displaceable between a rearward position and a forward position, wherein the sleeve projects beyond the inner nozzle at least when in the forward position, and wherein the sleeve widens a cross-sectional area of the outer nozzle to a variable degree as the sleeve is displaced from the rearward to the forward position. Methods of using a cutting gas nozzle are also described.

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Gerlingen, Germany

Martin Bea