Choosing the Correct Beam Delivery Method for Your CO<sub>2</sub> Laser Cutting Application The CO2 laser source is similar to the engine in a car. You may have a great engine in your vehicle, but if the transmission is poor or the wheels fall off then you are not going to get very far down the road. This is much the same with laser processing systems. Great care must be taken not only in choosing the correct Synrad laser source, but also in delivering that laser beam to the target material in the most efficient manner possible for the application requirements. This paper will demonstrate how different beam delivery methods can lead to dramatic differences in cut quality and speed, despite using the same laser source. Beam Delivery Method Whitepaper In this white paper, we will look at two common methods of delivering the beam for cutting applications. A scan head with galvo-mirrors compared to a cut head with a gas jet manifold. Each method has its own advantages and disadvantages, which depends on the material type and thickness as well as the cut quality and velocity requirements for the particular application. While no solution is perfect, carefully balancing these process needs will lead to the best outcome for the application. Cutting with a CO2 laser involves three very different material interactions. Each interaction depends on the type of material: vaporization, melt shearing, or chemical degradation. For plastics, like acrylic, that absorb the 10.6 µm CO2 wavelength very well, the cut process mainly consists of vaporization. The cut process is so efficient, therefore, there is little heat input to the surrounding material. For thin materials, this means no assist gas is needed to cool the surrounding material in order to maintain high quality cuts. However, when the plastic type does not absorb the CO2 beam as well, it results in greater heat input and the cut process is mainly melt shearing. Read full whitepaper here. About Novanta Who we are is inevitably embedded in what we do, our innovations, and the people that make it happen. Our core strength is delivering market-leading solutions for our customers, but also maintaining deep and long-lasting customer relationships. We do this through our global application sales force, and quality-focused manufacturing expertise. It is thanks to what we accomplished in our past and our continuous work towards innovation, that makes us who we are today. Novanta is a trusted technology partner to medical and industrial OEMs (original equipment manufacturers). Additionally, Novanta holds deep proprietary expertise in photonics, vision and precision motion technologies. We engineer mission-critical core components and subsystems that deliver extreme precision and performance. This enabling our customers to improve productivity, to achieve breakthrough performance and to enhance people’s lives. Building a high-performing culture enables us to achieve our growth goals. It starts with cohesive teams that engage and align around our vision and strategy. Those who live our values and drive performance through the Novanta Growth System. This is a common set of tools and processes for continuous improvement. Our highly engineered component and sub-system solutions, and deep expertise in advanced photonics, vision and precision motion make us the global technology partner of choice for medical and advanced industrial OEMs. Learn more about Novanta by contacting us here. Interested in a career with Novanta? Check out our job listings here.
