Producing three-dimensional jewelry pieces made of metal, comprises repeatedly applying a metal powder on a substrate and/or highly-adjustable platform in a layer-wise manner, and partially melting the powder layer at a predetermined point

摘要

The method comprises repeatedly applying a metal powder (P) on a substrate (8) and/or a highly-adjustable platform under a protective gas atmosphere in a layer-wise manner, and partially melting the formed powder layer at a predetermined point using local energy input for three-dimensionally structuring a jewelry piece. The metal powder is applied in layers with a thickness of 20-100 micrometers, is locally melted using a laser beam, and is used on the basis of iron, non-ferrous metal and noble metal such as silver, gold or its alloy. A low-melting binder is admixed to the metal powder. The method comprises repeatedly applying a metal powder (P) on a substrate (8) and/or a highly-adjustable platform under a protective gas atmosphere in a layer-wise manner, and partially melting the formed powder layer at a predetermined point using local energy input for three-dimensionally structuring a jewelry piece. The metal powder is applied in layers with a thickness of 20-100 micrometers, is locally melted using a laser beam, and is used on the basis of iron, non-ferrous metal and noble metal such as silver, gold or its alloy. A low-melting binder is admixed to the metal powder. The metal powder is partially melted at the predetermined point after the introduction of a new powder layer, where the platform is downwardly treated to the height of the following layer to be applied before applying a new powder layer. The laser beam is targetedly switched on and switched off during the movement of a laser source (12), and is pulsed, where the length of the intervals and/or breaks is variable. The movement speed of the laser source and/or the energy of the determined laser beam are varied. The jewelry pieces are designed by computer-aided design software, where the generated data is converted and is used for controlling the laser source.