Laser Marking Before Heat Treatment for Traceability Raw material traceability has become the norm in the manufacturing industry, enabling multiple industries to trace each component from the moment raw materials enter the factory to the moment final products are shipped. As supply chain visibility has grown increasingly important, laser marking — the most reliable solution for identification — has grown in prominence. As a technology, laser marking allows parts to be marked before hard processes such as heat treatments, and it ensures identifier reliability after the process. But why ar...