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Products

Fiber Laser Welder

YAG Laser Welder

YAG SHG Green Pulse Laser Welder

Scanning Type Laser Welding System

Laser Weld Monitor

LD Direct, Laser Plastic Welder

Focus Head,
Optic Fiber

Allows Laser Welding of Copper, Too!

 Real-Time Power Feedback Control YAG SHG Green Pulse Laser Welder

ML-8050A
ML2650B image
  • Real-time power feedback
  • Variable mirrors
  • Waveform control
  • Power monitor
  • External communications
  • Forced air cooling
  • Dualwavelength laser system
 

SHG lasers

An SHG (second harmonic generation) laser is a green laser that uses nonlinear optic elements. It has a wavelength of 532nm, which is in the visible light range and is half that of the principle YAG laser's wavelength (1,064nm).


Spectrum

Why this is suited to copper welding

A YAG SHG laser's wavelength has a good absorbency ratio for copper and gold, about 4.5 to 20times better that of the normal YAG laser.


Laser wavelength and absorbency ratio

 

ML-8050A welding sample

Dephosphorized copper butt welding Thickness of the plates

0.08 mm

Dephosphorized copper butt welding Thickness of the plates
 

Welding conditions: 0.35 kW peak, pulse width 2.0 ms, 2 pps, 0.66 J, feed speed 0.2 mm/s

 

2-wavelength welding system

By combining a SHG YAG laser and normal YAG laser at a focus head as shown in the right picture, the welding depth and melting spot diameter on copper work-piece are greatly improved comparing to a single wave length welding.
2-wavelength welding system
 

Results of different wavelength lasers applied on copper plates

Results of different wavelength laser applied on copper plates
 

Specification

Model ML-8050A
Oscillation wavelength 532nm(YAG-SHG)
Laser output Maximum rated output 2W
Maximum rated output 2J/P
Maximum rated output 1.5kW(pulse width 1ms maximum)
Output control Pulse width 0.20 - 3ms(0.02ms steps)
Pulse repetition rate 1 - 12pps
Pulse repetition rate 32 schedules
Counter Total Counter 9 digits
Good Counter 9 digits
Available optical fiber Ø0.3-0.6mm SI type optical fiber(Ø0.3mm SI type optical system is recommended)
Branch optical system Single branch only
External communication function RS-485
Required power supply Single-phase 200/220/240VAC +10% -15% 50/60Hz
Cooling system Forced air cooling
Dimensions 310(W) X 802(D) X 700(H)mm
Mass 84kg

The specification and external design are subject to change without notice.

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