|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||True Traceability Enabled by In-line Laser Marking of Lead and Zinc Ingots
||Alex Fraser, Jean-Michaël Deschênes
|On-Site Speaker (Planned)
In the last few years, traceability has become an important asset for improvement of manufacturing processes and logistics in the primary metal industries. One of the key elements to obtain true traceability is the ability to consistently apply an identifier on the metal product, as early as possible in the manufacturing process. This often implies marking on very hot metal in harsh foundry environment, conditions that are far from ideal for traditional labelling or inkjet printing systems. In this paper, we discuss the feasibility of laser marking of Lead and Zinc ingots directly in the production line. Such laser marked identifiers are very robust and the marking machines requires much less maintenance than traditional technologies. Emphasis is put on the process speed and contrast level. Dynamic compensation for the inaccurate part positioning is also explained, which makes the system capable of handling most real industrial conditions.