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Member Webinar: Traceability and Laser Marking
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When: Wednesday, February 13, 2019
1:30 PM
Where: United States

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Member Webinar: Traceability and Laser  Marking
Presenter: Martin Hartlieb, Baraldi SrL
2:30 - 3:30 PM EST / 1:30 - 2:30 PM CST


In the last few years high costs related to car recalls by automakers have significantly increased their demand for individual traceability of components & extrusions are no exception. In other industries (like aerospace or nuclear) traceability has long been a requirement for all products - & other industries are now following this trend. All the way to the end of life of a product we want to be able to trace back how & from which alloy it was made. As a result, requirements for unique identifiers marked on (especially safety critical or structural) parts is becoming more and more common in the industry. These marks usually take the form of a 2D code of data matrix type. Besides the OEM’s need there are also important advantages to the part manufacturer to have individual & unique serial numbers mark on each part: This allows us to know exactly when & where a specific (defective or not) part has been produced, so they can track back the process & environmental parameters associated with that part. They can use this information for process improvement & tracking of other parts that encountered similar parameters. To correctly identify parts & avoid any possible mix-up the marking must be done right at the extrusion press (on the fly)l. As extrusions are often going through a secondary processes from heat treatment, surface treatments like anodizing or painting, etc., this adds a challenge to the marking properties as the marks need to remain perfectly readable after any such process. After studying intensively this topic for the last 3 years, Laserax has found the right laser parameters combination that allows laser marking of identifiers that resist basically any secondary post-processing step, even the very aggressive shot blast process, & maintain a high level of quality & readability. The outstanding results obtained during the last year demonstrate a fast and robust laser marking method that allows for the first time the integration into an extrusion press without any compromise on throughput.


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