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레이저 시스템 Laser System(170)

8-Axis Scanner (Precession Processing)

PRODUCT

8-Axis Scanner (Precession Processing)

-. 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

APPLICATION

-. High-precision drilling of customized borehole shapes and taper angles with the highest reproducibility
-. Advanced cutting applications with precise edge angle control

제품정보 PRODUCT INFO

Precession ElephantPrecession Elephant 2

                                  
            

The Precession Elephant and the Precession Elephant 2 are the world’s leading scan heads for high-precision laser drilling, cutting and micromachining, specifically designed for demanding applications in mass production.

The new 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.

            
                     
            

Overview Media Functionality Specifications Downloads

            
                     
            

Brief description

                                 
            

Industry-proven scan heads with between 5 and 8 axes for high-precision drilling and cutting applications

Applicaton examples

  • high-precision drilling of customized borehole shapes and taper angles with the highest reproducibility
  • advanced cutting applications with precise edge angle control

Typical process parameters

  • 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
            
ARGES Precession Elephant front side view
            
                     
            


                         
                     
            


                                 
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ARGES precession square hole array
            
                          
            

 

            
                     
            


            
                     
                         
            
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27 ARGES bilder precession galerie web3
            
                          
            

About precession scanning

                                 

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.

 

ABOUT THE PRECESSSION ELEPHANT AND THE PRECESSION ELEPHANT 2

The Precession Elephant and the Precession Elephant 2 are the world’s first and most used laser scan heads for  precession applications. The heads are designed for high-precision laser drilling, cutting and micromachining applications. They are used 24/7 in production facilities around the world.   
The Precession Elephant scan heads offer 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.
The scan heads can be used with all major ultra-short pulsed laser sources available on the market today. In addition, the new Precession Elephant 2 makes it possible to monitor the laser process and the laser beam properties during production. The new scan head offers improved particle extraction, beam attenuation control and additional functionalities designed for mass production of the highest quality. Several other options, such as tools for the setting and calibration of the polarization, simplify the set-up of the scan head and minimize downtimes for the end-user.

FOR THE PRECESSION ELEPHANT SCANHEADS, ARGES OFFERS

  • laser-specific customization
  • subsystems that include laser and beam path
  • customer-specific software extensions
  • laser process development
  • sample production

Please feel free to contact ARGES or its distributors if you have any further questions.

            
                                  
                     
            

PROCESS GAS CONTROL

            
                     
                         
            
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Machscheiben 160928 2 bearb EN 1
            
                          
            

Process gas control for highest possible processing quality


                                 

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 microprocessing.

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 underexpanded 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.

Through targeted control of the process gas pressure, it is possible to precisely position these Mach discs to suit the specific working distance between the nozzle and workpiece, and to optimize the machining process for each particular system design.

This exact tailoring of the process gas control to the specific application is an important aspect in achieving the highest possible processing quality in laser micromachining.

            
                                  
                     
            

Specifications

            
                     
            
Technical specificationsPRECESSION ELEPHANT 2PRECESSION ELEPHANT
Number of axes
8 axes:
5 axes:
XYZ coordinates
XYZ coordinates
Two beam inclination angles
Two beam inclination angles
Two polarization parameters
Beam attenuation value
Laser wavelength
343-355 nm (ultraviolet)
515-532 nm (green)
515-532 nm (green)
1020-1080 nm (near infrared)
1020-1080 nm (near infrared)
1500-2100 nm (infrared)
1500-2100 nm (infrared)
Laser pulse energy
300 µJ
100 µJ
Average power
100 W
40 W
Pulse length
250 fs to 20 ps
500 fs to 10 ps
Adjustment of the spot geometry and beam caustic
Manual and motorized
Manual
Focal length of objective lens
60 mm or 120 mm, second generation
60 mm or 120 mm
Focal diameter
10 to 30 µm
20 to 40 µm
Polarization in the focus
Circular or elliptical, with optional electronic control
Circular, manually adjustable
Z positioning
+/- 1mm electrical, +/- 2 mm manual
+/- 1mm electrical, +/- 2 mm manual
Maximum mechanical Z velocity
500 mm/s
200 mm/s
Theoretical Z positioning resolution
30 nm
30 nm
Aperture
26 mm
21 mm
Precession frequency
200 - 600 Hz (12 000 - 36 000 rpm), depending on incidence angle
200 Hz (12 000 rpm)
Max. precession angle (full cone angle)
18°
14°
Field size
0.8 mm to 3.0 mm, depending on nozzle
0.8 mm to 2.0 mm, depending on nozzle
Hole diameter accuracy
< 0.2 µm
< 0.25 µm
Step width adjustment of hole diameter
0.015 µm
0.1 µm
Cooling
Water
Water
Purge gas (head/lens)
Air or nitrogen
Air or nitrogen
Process gas
Air, nitrogen or shielding gas
Air, nitrogen or shielding gas
Process gas pressure
Any, 0 to 4 bar
Any, 0 to 4 bar
            
                     
            



PROCESS CONTROL OPTIONS

 
Customized suction cups for integrated particle extraction with external pressure control
Customized suction cups for integrated particle extraction
 
Through-the-lens vision module with internal sample illumination
 
Polarization control for sharpest edges over complete circumference
 
High-speed laser stop for consistent edge results on exit surface
 
Energy monitor for long-time process stability
 
Optical beam attenuator
 
Confocal detector
 
Plasma emission sensor
 
Single pulse energy measurement sensor
 
Beam position and profile monitor
            
                     
            


SET-UP OPTIONS

Two alignment cameras for beam adjustment
Beam position and beam profile monitoring
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Automatic calibration of the beam position and direction
Safety shutter
            
                     
            


INTEGRATION OPTIONS

Available as scan head
Available as scan head
Available as scan head, adjusted to your laser source
Available as scan head, adjusted to your laser source
Available as scan head with matched
laser and beam path
Available as scan head with matched laser and beam path
Stationary or moveable mounting
Stationary or moveable mounting
XY table control
Beam splitter control
Control of external acousto- and electro-optical modulators
            
                     
            


CONTROL OPTIONS

User interface
InScript® V3 with precession drill nodes
InScript® V2 with Spiro3D nodes
Network
Controller lib via TCP/IP
Controller lib via TCP/IP
PLC
Profibus, EtherCAT, 24V
Profibus, EtherCAT, 24V
System control
System Controller ASC-2
System Controller ASC-2
Inputs (ASC-2)
RS232, CAN/CANopen, Ethernet (TCP/IP), Profibus, EtherCAT, digital inputs (TTL up to 24V)
RS232, CAN/CANopen, Ethernet (TCP/IP), Profibus, EtherCAT, digital inputs (TTL up to 24V)
Outputs (ASC-2)
RS232, CAN/CANopen, Ethernet (TCP/IP), Profibus, EtherCAT, analog outputs (0-10V), digital outputs (TTL up to 24V)         
RS232, CAN/CANopen, Ethernet (TCP/IP), Profibus, EtherCAT, analog outputs (0-10V), digital outputs (TTL up to 24V)
            
                     
                     
            
            
                     
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