Abstract: A portable device for laser marking capable of detecting the presence of defects on the surface to be marked and/or its misplacement.

Abstract: A marking machine having a marking head provided with a percussion tool configured to alter at least partly a surface of an object to be marked, a movement device/component/unit/apparatus or the like configured to move said percussion tool along a direction of percussion, and a heating assembly configured to heat said percussion tool.

Abstract: A marking process of an object comprising providing a processing device/unit/member/circuit having a word processing software and a display and operationally connected to an apparatus for the marking of an object having a marking head, entering one data by the word processing software suitable for being engraved on an object, switching on a detecting device/unit/member/circuit which are positioned above a work top of the apparatus to receive the object to be marked, positioning the object to be marked above the work top, acquiring an image of the object to be marked and sending it to the word processing software to show it on the display, checking via the display whether the data entered is at least partly superimposed on the image of the object, and starting the marking of the object.