A method for producing a metal powder of an aluminium alloy for use as a material in additive manufacturing, wherein the metal powder of the aluminium alloy is produced from aluminium or from an existing aluminium alloy and at least one further metal, wherein the production method for the metal powder of the aluminium alloy comprises the following steps: - melting and alloying the aluminium or the existing aluminium alloy with the at least one further metal in a melting furnace in a second gas-tight furnace chamber, wherein the temperature of the melt is 500°C to 1400°C, preferably 1100°C to 1200°C, particularly preferably about 1150°C, wherein the melt is transferred from the second gas-tight furnace chamber into a first gas-tight furnace chamber comprising a heated tundish, wherein, before the melt is atomised, the at least one further metal is fed through a feed lock to the melt in the first gas-tight furnace chamber and optionally to the melt in the second gas-tight furnace chamber, wherein the at least one further metal is preferably Si and/or Mg and/or Mn and/or Cu and/or Zr and/or Sc and/or B and/or Nb and/or Ta and/or V and/or W and/or Wi; - atomising the melt by means of a primary gas which is an inert gas and has a first gas flow, wherein the primary gas is preheated to 100°C to 450°C; - cooling the melt during the atomisation and solidification of the metal powder, wherein a material flow runs in a spray tower during the atomisation and solidification, and wherein the melt is introduced into the heated tundish immediately before the atomisation, wherein the tundish has a spray nozzle at a lower end as well as at least one feed line for the primary gas, so that the heating of the primary gas is additionally effected by heat contact with the heated tundish or its spray nozzle. - melting and alloying the aluminium or the existing aluminium alloy with the at least one further metal in a melting furnace in a second gas-tight furnace chamber, wherein the temperature of the melt is 500°C to 1400°C, preferably 1100°C to 1200°C, particularly preferably about 1150°C, wherein the melt is transferred from the second gas-tight furnace chamber into a first gas-tight furnace chamber comprising a heated tundish, wherein, before the melt is atomised, the at least one further metal is fed through a feed lock to the melt in the first gas-tight furnace chamber and optionally to the melt in the second gas-tight furnace chamber, wherein the at least one further metal is preferably Si and/or Mg and/or Mn and/or Cu and/or Zr and/or Sc and/or B and/or Nb and/or Ta and/or V and/or W and/or Wi; - atomising the melt by means of a primary gas which is an inert gas and has a first gas flow, wherein the primary gas is preheated to 100°C to 450°C; - cooling the melt during the atomisation and solidification of the metal powder, wherein a material flow runs in a spray tower during the atomisation and solidification, and wherein the melt is introduced into the heated tundish immediately before the atomisation, wherein the tundish has a spray nozzle at a lower end as well as at least one feed line for the primary gas, so that the heating of the primary gas is additionally effected by heat contact with the heated tundish or its spray nozzle.