Abstract: There is provided a method for producing a metallic workpiece in layers by additive manufacturing, metallurgical layers of the workpiece being produced by providing a metal material in a manufacturing chamber for each metallurgical layer and applying a laser beam to the metal material, and providing a gas atmosphere in the manufacturing chamber during the application of the laser beam to the layers of the metal material, wherein a part of the gas atmosphere is drawn off from the manufacturing chamber as a gas stream, at least one parameter of the gas stream and/or the gas atmosphere being determined and being compared with a desired value. Depending on the comparison of the parameter with the desired value, the gas stream is fed back to the manufacturing chamber and a process gas is supplied to the manufacturing chamber.

Abstract: A method and apparatus for the generative manufacture of a three-dimensional component in a processing chamber, in which the steps “providing a metallic starting material in the processing chamber” and “melting the starting material by means of energy input” are repeated multiple times, wherein a process gas is provided in the processing chamber are disclosed. The method is characterized by the steps: 1) the hydrogen content of the process gas or a sample of the process gas is determined; 2) the oxygen content of the process gas or a sample of the process gas is determined by means of an oxygen sensor and/or the dew point of the process gas or a sample of the process gas is determined; and 3) the values for the oxygen content and/or the dew point determined in step 2 are corrected by means of the value for the hydrogen content determined in step 1.

Abstract: The invention relates to a method for producing, in particular generatively producing, and coding a three-dimensional component. Said method comprises the following steps: providing a starting material, supplying a process gas to the starting material, melting the starting material by means of a heat source, and repeating the aforementioned steps. The method according to the invention is characterized in that, at least at a predetermined time interval during the melting of the starting material, a coding component or a coding gas containing a coding component is added to the process gas such that the use of the coding component in the finished object is detectable, and coding information is logged which describes the coding information and the location thereof in the component.

Abstract: A method and apparatus for the generative production of a three-dimensional component in a processing chamber are disclosed. The method performs the steps of providing a metal starting material in the processing chamber and melting the starting material by inputting energy, which are repeated multiple times. A process gas is passed through the processing chamber in a circuit. Hydrogen is added to the circulating gas, then the circulating gas is heated to a temperature above 500 ° C. and then cooled to a temperature below 60 ° C.

Abstract: The invention relates to a method for producing, in particular generatively producing, and coding a three-dimensional component. Said method comprises the following steps: providing a starting material, supplying a process gas to the starting material, melting the starting material by means of a heat source, and repeating the aforementioned steps. The method according to the invention is characterized in that, at least at a predetermined time interval during the melting of the starting material, a coding component or a coding gas containing a coding component is added to the process gas such that the use of the coding component in the finished object is detectable, and coding information is logged which describes the coding information and the location thereof in the component.

Abstract: A method for the generative production of a three-dimensional component in a processing chamber, wherein the steps of providing a metal starting material in the processing chamber and melting the starting material by inputting energy are repeated multiple times, and wherein a process gas is provided in the processing chamber is disclosed. The method provides for the following steps wherein the hydrogen content of the process gases or of a sample of the process gas is determined; the oxygen content of the process gas or of a sample of the process gas is determined by means of an oxygen sensor and/or the dewpoint of the process gases or of a sample of the process gas is determined; and the value determined in step 2 for the oxygen content and/or the dewpoint is/are corrected with the aid of the value for the hydrogen content determined in step 1.

Abstract: A method and apparatus for the generative production of a three-dimensional component in a processing chamber are disclosed. The method performs the steps of providing a metal starting material in the processing chamber and melting the starting material by inputting energy, which are repeated multiple times. A process gas is passed through the processing chamber in a circuit. Hydrogen is added to the circulating gas, then the circulating gas is heated to a temperature above 500 ° C. and then cooled to a temperature below 60 ° C.

Abstract: A method and apparatus for the generative manufacture of a three-dimensional component in a processing chamber, in which the steps “providing a metallic starting material in the processing chamber” and “melting the starting material by means of energy input” are repeated multiple times, wherein a process gas is provided in the processing chamber are disclosed. The method is characterized by the steps: 1) the hydrogen content of the process gas or a sample of the process gas is determined; 2) the oxygen content of the process gas or a sample of the process gas is determined by means of an oxygen sensor and/or the dew point of the process gas or a sample of the process gas is determined; and 3) the values for the oxygen content and/or the dew point determined in step 2 are corrected by means of the value for the hydrogen content determined in step 1.

Abstract: A method for processing powdered starting materials includes a powdered material created and packaged under a protective gas atmosphere such that a protective gas is also present in the package, and the packaged powdered material is unpacked by a user and sent for further processing, wherein a gas detectable with sensors is supplied to the protective gas during packaging and/or in the packaging, or the protective gas is a gas that can be detected with sensors and the manufacturer and packager of the powdered material and/or the end user will examine the package with sensors to detect an escape of the detectable gas.

Abstract: A method for the generative production of a three-dimensional component includes providing a metallic starting material in the form of a powder bed in a substantially horizontal starting plane, supplying a process gas to the starting material, melting the starting material by a heat source, repeating the above steps, wherein at least a portion of the process gas is supplied through the powder bed. A related device is also provided.

Abstract: A device provides lubricant protection and includes at least two friction members, at least one lubricant reservoir for a lubricant arranged in the device, and at least one lubricant protection arrangement having flow means for enabling a lubricant protection gas to flow through the lubricant in the lubricant reservoir and the device. A method is also provided.

Abstract: A method and gas lubricant are provided for lubricating a tribological system and include providing gaseous carbon dioxide, and bringing the gaseous carbon dioxide into contact with regions of the tribological system to be lubricated. An inert gas may also contact the regions to reduce oxidation. Nitrogen may be used as the inert gas.

Abstract: A device provides lubricant protection and includes at least two friction members, at least one lubricant reservoir for a lubricant arranged in the device, and at least one lubricant protection arrangement having flow means for enabling a lubricant protection gas to flow through the lubricant in the lubricant reservoir and the device. A method is also provided.

Abstract: There is provided a lubricating device for a device to be lubricated having at least two friction members, wherein the lubricating device includes producing an oxygen-free aerosol of a liquid lubricant in a carrier fluid, and supplying the aerosol to the device to be lubricated. A method is also provided.