A better way to cut platinum: modern laser technology
Platinum: a material with exceptional properties
Platinum is a fascinating metal – as rare as gold, but with a much higher melting point, making it the ideal choice for processes requiring extreme temperatures. Thanks to modern fiber lasers, cutting platinum is now efficient, with almost 100% material utilization.
The history of platinum processing dates back to 1856, when Wilhelm Carl Heraeus, a chemist and pharmacist from Hanau, developed a revolutionary method for smelting platinum using an oxyhydrogen torch. Today, the Heraeus company he founded ranks among the world's leading providers of precious metal services, with platinum remaining a key material processed at its Hanau plant.
Why laser cutting wins
Many years of experience in platinum processing have led to a constant need to modernize technology. "We used to use erosion machining or CNC punches, but this had a number of limitations, such as poorer material utilization," explains Thomas Link, a process engineering expert at Heraeus.
The switch to laser cutting has brought about a fundamental change. The Coherent ExactCut 430 system enables cutting of platinum in formats up to 400 x 500 mm. Thanks to cut optimization using nesting software, material utilization has been significantly improved, waste production has been minimized, and processes have been accelerated.
Advantages of laser cutting precious metals
- Non-contact process: The laser beam passes through the material without mechanical wear. This also prevents contamination by oil or dirt.
- Almost zero waste: Particles from the cut are recycled and fine particles are extracted for further use.
- Cleaner and more efficient work: Cutting is faster and requires less subsequent machining.
Cooperation with Coherent
Heraeus took great care in selecting a technology supplier. "Coherent was able to quickly deliver cut samples that met our requirements," says Thomas Link. The advantages were not only speed, but also affordability and the possibility of staff training.
The future of laser cutting platinum
In the future, Heraeus plans to expand the machine's capabilities, such as processing larger formats or using a rotary unit for cutting rotationally symmetrical parts. Overall, Thomas Link is satisfied with the investment: "The new process saves us time, minimizes material transport, and increases the cleanliness of the work. Material utilization is almost 100 percent."
Modern technology for processing precious metals
Laser cutting is revolutionizing the processing of precious metals such as platinum and gold. Thanks to its collaboration with Coherent, Heraeus is an example of how advanced laser technologies can increase efficiency, reduce costs, and maximize the quality of the final product.
