Abstract: In an embodiment a method includes providing a workpiece, attaching a marking to the workpiece such that the marking is integrally bonded to the workpiece, wherein attaching the marking includes applying at least one raw material for the marking, heating the workpiece with the at least one raw material such that the marking is formed from the at least one raw material and performing a surface treatment of the workpiece at least in an area with the marking, wherein performing the surface treatment includes shot peening, sand blasting or material-removing etching against which the marking is resistant to, wherein the marking remains readable on the workpiece at least until after performing the surface treatment, and wherein the marking has, in at least a part of a near ultraviolet, a visible and/or a near-infrared spectral range relative to the workpiece, at least one of a degree of reflection difference, a reflectance difference or an albedo difference of at least 10 percentage points.

Abstract: A method for marking a wordpieces and workpiece are disclosed. In an embodiment the method includes applying an identification to a blank in places and after applying the identification to the blank, deforming the blank to form a metal body, wherein deforming the blank comprises rolling so that a thickness of the blank changes more strongly than a width of the blank when the metal body is formed, wherein the identification remains on the metal body at least until after deforming the blank and is not destroyed by deforming the blank, and wherein the identification, both to the blank and to the metal body, has at least one of a difference in reflection or a difference in remission and an albedo difference of at least 15 percentage points in at least part of at least one of a near ultraviolet spectral region, a visible spectral region or a near-infrared spectral region.

Abstract: In an embodiment, a workpiece includes a hot-formed metal body and a marking, wherein the marking comprises a phosphor and/or pigments which are at least partly arranged on the metal body and which exhibit a reflection behavior and/or a reflectance behavior and/or an albedo behavior deviating from the metal body.

Abstract: A method for marking a wordpieces and workpiece are disclosed. In an embodiment the method includes applying an identification to a blank in places and after applying the identification to the blank, deforming the blank to form a metal body, wherein deforming the blank comprises rolling so that a thickness of the blank changes more strongly than a width of the blank when the metal body is formed, wherein the identification remains on the metal body at least until after deforming the blank and is not destroyed by deforming the blank, and wherein the identification, both to the blank and to the metal body, has at least one of a difference in reflection or a difference in remission and an albedo difference of at least 15 percentage points in at least part of at least one of a near ultraviolet spectral region, a visible spectral region or a near-infrared spectral region.

Abstract: In an embodiment, a workpiece includes a hot-formed metal body and a marking, wherein the marking comprises a phosphor and/or pigments which are at least partly arranged on the metal body and which exhibit a reflection behavior and/or a reflectance behavior and/or an albedo behavior deviating from the metal body.

Abstract: In an embodiment, the method includes providing a blank, applying a marking to the blank in places and heating the blank with the marking to a deformation temperature. The method further includes deforming the blank to form the workpiece and cooling the workpiece, wherein deforming is a hot forming, wherein the marking remains at the workpiece at least until after deforming and cooling, and is not destroyed by deforming, and wherein the marking has a difference in the degree of reflection and/or a difference in the degree of reflectance and/or a difference in albedo of at least 15 percentage points in at least part of the near ultraviolet, visible and/or near infrared spectral range both with respect to the blank and with respect to the workpiece.

Abstract: The method comprises the following steps: bonding at least one chemical, optically luminescent compound (3) onto at least one indicator element (6) for testing the treatments (14), wherein at least one luminescence property of the chemical compound (3) can be changed; assigning at least one indicator element (6) to the object (1); wherein the indicator element (6) and the object (1) are simultaneously subjected to the same conditions of the energy-introducing treatment (14); changing the luminescence property of the chemical compound (3), wherein the level of the change to the luminescence property depends upon the energy-introducing treatment (14); irradiating (13) the chemical compound (3) with electromagnetic radiation directed onto the indicator (6) for excitation of the luminescence during the energy-introducing treatment or following the energy-introducing treatment (14).