Laser Hole Drilling Process

Laser drilling is the process of creating thru holes referred to as popped holes or percussion drilled holes by repeatedly pulsing focused laser energy on a material.

Laser hole drilling process.

Laser drilling is the process of repeatedly pulsing focused laser energy at a material vaporizing layer after layer until the desired depth is achieved. Laser drilling is a non contact process meaning that unlike conventional drills the laser doesn t physically touch the material it is working with itself meaning that the only mark that is left is the hole that has been drilled. Percussion laser drilling therefore typically creates deeper and more precise holes with. This in turn maintains the original quality of the material.

The difference however between percussion laser drilling and single shot laser drilling is that the size of the beam being used within percussion laser drilling is changed throughout the process changing the size of the hole throughout the process. This is essential in order to define a suitable drilling strategy modify process parameters accordingly during the drilling process and to use process gases effectively. The laser drills are more precise can drill way smaller holes. Laser drilling is a non contact process that uses focused high energy density light to ablate material and drill holes in a wide variety of materials.

The anv laser team has extensive experience in laser drilling with the know how to precisely control all the parameters that are critical to achieving precise and predictable hole drilling. Laser drilling utilizing the trepanning method can also produce proportionately larger exit holes by tilting the laser beam within an already drilled. If larger holes are required the laser is moved around the circumference of the popped hole until the desired diameter is created. Laser drilling of micro holes is a key area for precision laser micromachining.

Gfh gmbh has been involved in the production of laser drilled micro holes since it was founded. Lasers can be focussed to very small spots the very small holes in ink jet nozzles or the micro vias in smart phone printed circuit boards are created with our excimer or co2 lasers. This drilling technology implements drill bits. Laser micro hole drilling is widely applied to the creation of precisely controlled orifices for applications that demand a combination of small diameter exceptional quality and exacting tolerances.

Compared to other drilling methods lasers offer superior speed and precision while lowering operating costs. The diameter of these holes can be as small as 0 002 50 μm. Laser drilling is a non contact process where the workpiece and the tool do not come in contact with each other.