Apparatus for cutting workpieces by means of a high-energy beam
First Claim
1. An apparatus for cutting workpieces by means of a high-energy electromagnetic beam, with a cutting head having a cutting nozzle, from which the beam emerges, comprising at least one gas outflow nozzle for working gas in the cutting nozzle, wherein each gas outflow nozzle, on the one hand, is formed by a groove (50) in a conical end face (49) of a nozzle insert (47) having a concentric passage bore (20) for the beam, and on the other hand is formed by a nozzle cap (48) which is removably attached onto the nozzle insert and which has a portion of such a matching conical shape that each groove (50) is covered by the cap.
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Accused Products
Abstract
In the cutting of workpieces by means of a laser beam, gas is blown onto workpiece at high speed together with the beam. It is proposed to design gas outflow nozzles (60) in such a way that they are formed as grooves in the conical end face (49) of a nozzle insert (47) and, on the other hand, are formed by a nozzle cap (48) which has a portion of such a matching conical shape that the grooves are covered. It is also proposed to provide a unifying chamber (formed by an attached cap), in which the gas jets are unified, so that they then flow out, together with the laser beam, as a single gas jet.
13 Citations
16 Claims
- 1. An apparatus for cutting workpieces by means of a high-energy electromagnetic beam, with a cutting head having a cutting nozzle, from which the beam emerges, comprising at least one gas outflow nozzle for working gas in the cutting nozzle, wherein each gas outflow nozzle, on the one hand, is formed by a groove (50) in a conical end face (49) of a nozzle insert (47) having a concentric passage bore (20) for the beam, and on the other hand is formed by a nozzle cap (48) which is removably attached onto the nozzle insert and which has a portion of such a matching conical shape that each groove (50) is covered by the cap.
- 8. An apparatus for cutting workpieces by means of a high-energy electromagnetic beam, with a cutting head having a cutting nozzle from which the beam emerges, with at least one gas outflow nozzle for working gas in the cutting nozzle, and with a common unifying chamber (26) formed by a cap (24) on said cutting nozzle, wherein a gas outflow orifice (66) of each gas outflow nozzle (60) opens into said common unifying chamber (26) into which a concentric passage bore (20) for the beam also opens, the unifying chamber (26) having opposite the passage bore (20) only a single exit bore (29) for the beam and the working gas.
Specification