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Marking of DMCs with subsequent KTL -coating (27.02.2019)

Suppliers to the automotive industry rely on
battery operated dot peen marker FlyMarker® mini 120/45

Marked work pieces are from great importance to guarantee full traceability and it is a necessity for many companies already, as law, guidelines, standards or supply contracts require them. Be it general labelling, quality management, product liability or logistics – traceability is increasingly becoming the measure of all things to do business sustainably. The cornerstone of a functioning traceability system is unambiguous identification based on a label. Therefore Data Matrix Codes (DMC) are more and more being used as they can encrypt large amounts of data in the smallest space. However, many parts are getting coated after marking and the legibility of the mark often suffers under this.

This problem also affects the automotive industry. All body parts are subject to the traceability requirements and must be marked accordingly. The marking areas are often in hard to reach places and furthermore, the parts are often getting coated after the marking. For this purpose, the so-called KTL-coating is increasingly being used, since this is of great advantage for the automotive industry due to their very good corrosion resistance. In this coating process, the workpiece is immersed in an electrically conductive aqueous dipping varnish and then energized to allow the varnish to separate. As a next step, the paint is baked at 200°. This results in a uniform coat of varnish with layer thicknesses between 10-45 μm. The difficulty is to ensure a marking, such as a DMC, that is marked flexible and readable even after a KTL - coating.

For this reason, many suppliers to the automotive industry are focusing on marking with the mobile, battery-operated hand-marking system FlyMarker® mini 120/45. The handling is very simple and facilitates the marking even in hard-to-reach marking areas. Thanks to the innovative extra strong magnet, it is also possible to create deep markings with a mobile device which are deep enough to be readable after coating. In addition, the FlyMarker® mini 120/45 has a large marking field so that even long chassis numbers (VIN numbers) can be marked at the touch of a button. Fonts, logos or DMCs to be marked can be easily programmed, stored in a file or read in via an electronic interface (USB, Ethernet).

Working with mobile dot peen marker FlyMarker® mini 120/45 significantly facilitates the marking process the chassis parts. The mobile handheld marking device can be brought directly to large and immovable parts and marks individually, quickly and economically. While marking DMCs, multiple lines, different font heights and changing information a tremendous amount of time can be saved. Several hundred logos and marking files can be stored directly on the device.

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