Products

Lasers

AUTOMATED TECHNOLOGICAL MACHINE BASED «Karavella» on copper vapour laser

Application: precision treatment of sheet materials (0.05…0.6 mm)

Spectrum of treatable materials:

refractory metals (W, Mo, Ta) and their alloys
high thermoconductive metals (Cu, Ag, Al, Au) and their alloys
steels and other metals
semiconductors and dielectrics
polycrystalline diamonds
transparent materials

Available operations:

precision outline cutting
microhole drilling
scribing
modification of near-surface layer
formation of images within of transparent media

Machine configuration

Copper vapour laser (CVL) “Kulon-15”, made as “oscillator-amplifier” pattern
PC-based travel and control system
Optical system of delivering and focusing the beam in the treatment zone
Technological chamber
System of gas supply into the treatment zone
System for destruction products removing from the treatment zone
Carrier structure

Advantages Technological:

Contactless treatment
Small size of the processing spot (10…40 ?m)
Evaporative nature of treatment (minimum liquid phase)
Low roughness of the cutting edge (? 1…3 ?m)
Low thermal effect area (? 5…10 ?m)
High precision of treatment (4…20 ?m)
No splitting or chipping of materials
Higher productivity (V_tr=1…10 mm/s)

Structural:

Simple beam power control system
Laser system of observation using the amplifier active element
High repeatability and stability of the active element parameters
Long service life and possibility of express active elements replacement
Simple adjustment of the machine

The advantages are provided by the following factors:

Sealed-off design of CVL active elements
Laser power supply with a switching element based on IJBT-transistors
A long-term experience in the fields of CVL application in the material precision treatment technology.

Potential industrial applications

Electronic industry: fabrication of grids, electrodes, other vacuum device parts, heatsinks, synthetic diamond elements, separation of substrates.
Instrument engineering: production of diaphragms, matrixes and structural elements, tool marking
Automobile industry: production of engine injectors and heat duty sensors.
Chemical industry: production of spinnerets; tonal marking of products.
Medical industry: filters, catheters, probes, artery expanders.
Jewelry industry: precious material cutting, and treatment, manufacture of souvenirs, 3D-marking of glass and others.

Specifications
Radiation wavelength, nm	510,6 и 578,2
Radiation beam diameter, mm	14
Average radiation power, W	10…15
Pulse repetition frequency, kHz	13…14
Pulse width (on level 0,5), ns	10±1
Average radiation power variation at steady operation(within 8 hour of monitoring), %	5
Radiation pulse energy, mJ	0,1…1
Beam divergence, mrad	0,1…0,3
Focusing length, mm	50,70,100,150,200
Heel radiations diameter in planes of the processing, ?m	10…40
Coordinate table travel on XY plane, mm	150х150
Coordinate table travel along vertical axis Z, mm	60
Coordinate table travel rate, mm/s	20
Positioning error of each axis at (20±1)?C, ?m	± 2
Magnification of laser tracking system	300
Operation readiness time, min	60
Continuous operation time, hours	unlimited
3-phase network power consumption, kW	5
Water consumption	(water-water or water-air system )
Overall dimensions and location area, mm and m²	3000х1700х1350; 7
Weight, kg	1150
MTTF, hours	1500
Average recovery time after active element replacement, hours	3

Results of precision treatment:

A part of spherical grid from molybdenum (МЧ), 0,07 mm thick

Grooves in tungsten (W) 0,2 mm thick

Polycristal diamond cut 0,35 mm thick

Holes in cuprum (МВ) 0,3 mm thick

Holes in pseudoalloy (МД-80) 0,6 mm thick

Silicon (Si) cut 1 mm thick

AWARDS

1. Gold medal at IV Moscow the International Interior of innovations and investments (February, 2004)
2. Gold medal at 53-rd World Interior of innovations, scientific researches and new technologies Brussels-Eureka 2004» (November 2004)
3. Gold medal at VII International Forum «High technologies of XXI century» (April 2006)