Laser drilling process is a vital part of the manufacturing process. Laser-based drilling uses a fiber laser beam to create micro holes, vias, pinholes, slots or make tiny depression dents in various materials. The beam parameters like intensity, duration, and heat output can be precisely controlled by the operator and can be easily programmed or automated for different drilling tasks.
Unlike conventional drilling, laser drilling is a non-contact process and does not require tooling. It means laser drilling produces consistent results time and time again with minimal or no distortion to the workpiece.
Therefore, laser drilling is a highly efficient process to create holes in multiple materials such as metals, plastics, composites, and semiconductors. With the benefits of accuracy, speed, and flexibility, laser drilling offers numerous advantages over conventional drilling methods.
Mechanical machining is the most commonly used method for drilling, reaming, and milling holes in metals. This method involves the use of different types of machines. Mechanical machining has limitations for drilling holes at shallow angles, and drilled holes often require secondary processes such as deburring.
Laser drilling does not require direct contact between material and laser device, reducing the possibility of any contamination to the material and eliminating secondary processes. Laser drilling has no restrictions on hole type and can drill holes of diameters down to a few microns. Approach angles about 10 degrees are easily possible.
Mechanical punching can create many holes, even of different sizes, in a single operation, making it suitable for multiple holed parts in mass production.
Laser-based drilling does not require press tooling and eliminates the need and cost of making punch, providing a low-cost solution for prototyping. Laser drilling has no parts to wear or break, and nearly any contour can be created without a tool change.