Precession Elephant 2

Our ARGES Precession Elephant series are the leading scan heads for high-precision laser drilling, cutting and micromachining, specifically designed for demanding applications in mass production. The latest Precession Elephant 2 scan head version offers extra functionality, especially for process control and set-up. The Precession Elephant scan heads can be used with all ultra-short pulsed laser sources available on the market today.

Precession Elephant 2
Description

Engineered by our ARGES brand, the Precession Elephant 2 is the perfect solution for precession applications. The heads are designed for high-precision laser drilling, cutting and micromachining applications and are used 24/7 in production facilities around the world.

This scan head offers maximum flexibility for the drilling of innovative borehole-and edge geometries of differing conicity, taper angles and shapes, and allow the production of perfectly round, elliptical and custom-shaped micro holes. The Precession Elephant 2 is available for ultraviolet, green and two infrared wavelength ranges, each with two different focal lengths.

All ARGES scan heads are compatible with ARGES ASC controllers and InScript® software.

Highlights External Link Pop Up
High-precision drilling and cutting
mm_cutting_drilling

High-precision drilling and cutting

Designed for high-precision drilling of customized borehole shapes and taper angles with the highest reproducibility. Also ideal for advanced cutting applications with precise edge angle control.

 

Typical process parameters include:

  • Material thickness: 0.02 – 1.5 mm
  • Hole processing time: 0.5 s
  • Hole diameters: 25 – 700 µm
  • Negative taper full angle: > 16 °
  • Hole aspect ratio: > 12:1
  • Diameter repeatability: < 0.25 % variation
  • Hole diameter accuracy: < 0.2 µm
  • Hole circularity: > 95 %
  • Hole position accuracy: < 1 µm
  • Wall surface quality: Ra < 0.1 µm
Precession scanning
precession_scanning

Precession scanning

Our precession scan heads allow not only the positioning of a laser beam, but also the setting of  the incidence angle of the beam at each point of the workpiece,. For a drilling process, the incidence angle is also called the precession angle. When drilling a borehole with high precision, the inclination of the internal hole surface, the so-called taper angle, can only be produced in a reliable and reproducible way if a precession scan head is used. The production of defined edge angles in laser cutting or laser micromachining also requires the use of precession heads.

 

 

Process gas control
PE_close_up_1

Process gas control

Process gases such as nitrogen or helium are frequently used in laser material processing to ensure the best possible results. When using process gases, it is important not only to select a suitable protective gas, but to also consider the flow dynamics aspects, which can significantly affect the processing quality and processing time. The drilling nozzle of the Precession Elephant 2 has been designed to precisely guide the process gas and, together with the system design and configuration, is an important contributor to ensuring optimum results in laser micro-processing.

The protective gas flows through a channel in the drilling nozzle directly onto the workpiece. Due to the compression of the protective gas, the nozzle exit pressure is significantly higher than the ambient pressure. This under expanded flow behavior is evident by the formation of a compression structure that is similar in shape to polished diamonds and leads to the creation of so-called Mach discs.

The process gas density is higher within a Mach disc, which results in an improved ablation process in laser material processing.

 

 

Tailored engineering capabilities
tailored_engineering

Tailored engineering capabilities

Through our highly specialized expertise and resources we can provide tailored solutions for your application needs.  With a large selection of different laser sources, scan heads and handling systems to choose from, we can develop laser processes that are perfectly tailored to a wide variety of customer-specific products, components and materials.

  • Laser-specific customization
  • Sub-systems that include laser and beam path
  • Customer-specific software extensions
  • Laser process development
  • Sample production
Specifications
Aperture 26 mm
Number of Axes

5 to 8 axes

Precession Frequency1

200 – 600 Hz (12 000 – 36 000 rpm)

Focal Length of Objective Lens

60 mm or 120 mm

Wavelength

Green: 515 – 532 nm
Near Infrared: 1020 – 1080 nm
Infrared: 1500 – 2100 nm

Notes:

1. Depending on incidence angle