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YAG laser equipment is used typically for local welding of various metals by converged Nd:YAG (neodymium-doped yttrium aluminum garnet) laser beam. YAG laser operates by laser light produced from optical pumping of YAG crystal.
Wide range of applications can be supported by SpeedFam laser equipment lineup from 30W to 600W. High stability is obtained from low output to high output of laser oscillation.
Simultaneous, sequential, and sequentially simultaneous beam split are selectable. Effective production automation can be simply designed.
| Model | 0310-30W | 0500-50W |
|---|---|---|
| Oscillation wavelength | 1.064μm | |
| Maximum rated power | 30W | 50W |
| Maximum output energy | 25J/P | 50J/P |
| Repetition | 1～500pps | |
| Pulse width | 0.07～50ms | 0.07～120ms |
| Laser condition | 64 patterns | |
| Shutter condition | 64 patterns | |
| Pulse shape | 40 patterns | |
| Pulse shape pattern | arbitrarily configurable | |
| Fade-in/fade-out shape | arbitrarily configurable | |
| All pulse pattern | arbitrarily configurable | |
| Maximum beam split | simultaneous 3, sequential 3 | simultaneous 4, sequential 4 |
| Cooling system | Air | |
| Power supply | 3P AC200V +/-10% 10A | 3P AC200V +/-10% 15A |
| Cooling water supply | - | |
| Dimension (mm) | 490(W)×970(D)×770(H) | 550(W)×1100(D)×952(H) |
| Weight | 185kg | 260kg |
| Model | 0800-80W | 1000-100W | 1500-150W | 3500-350W | 6000-600W |
|---|---|---|---|---|---|
| Oscillation wavelength |
1.064μm | ||||
| Maximum rated power |
80W | 100W | 150W | 350W | 600W |
| Maximum output energy |
60J/P | 70J/P | 70J/P | 80J/P | 120J/P |
| Repetition | 1～500pps | 1～600pps | 1～700pps | ||
| Pulse width | 0.07～120ms | ||||
| Laser condition | 64 patterns | ||||
| Shutter condition | 64 patterns | ||||
| Pulse shape | 40 patterns | ||||
| Pulse shape pattern |
arbitrarily configurable | ||||
| Fade-in/fade-out shape |
arbitrarily configurable | ||||
| All pulse pattern | arbitrarily configurable | ||||
| Maximum beam split |
simultaneous 4, sequential 4 | 1 (op. split) |
|||
| Cooling system | Water | ||||
| Power supply | 3P AC200V +/-10% 20A |
3P AC200V +/-10% 20A |
3P AC200V +/-10% 30A |
3P AC200V +/-10% 75A |
3P AC200V +/-10% 125A |
| Cooling water supply |
< 25°C, 15L/min, 0.3MPa | <25°C 20L/min 0.3MPa |
<25°C 30L/min 0.3MPa |
<25°C 70L/min 0.3MPa |
|
| Dimension (mm) | 550(W) ×1100(D) ×952(H) |
550(W) ×1100(D) ×952(H) |
550(W) ×1130(D) ×992(H) |
600(W) ×1320(D) ×1370(H) |
1900(W) ×700(D) ×1260(H) |
| Weight | 260kg | 260kg | 315kg | 420kg | 850kg |
YAG is an abbreviation of Yttrium Aluminum Garnet. Nd:YAG laser is one of the most widely used lasers, which is produced by optical pumping of YAG crystal doped with Neodymium.
| Energy absorption by metal is better than CO2 laser. | >>> | Process can be done by less energy. |
| Energy can be transferred through optical fiber. | >>> | Production line can be flexibly designed. |
| YAG rod as the oscillation source does not deteriorate over time. | >>> | Reliable oscillation can be delivered with less consumables. |
Laser welding is a process of local melt and solidification of various metals by a converged laser beam.
The laser system is composed of laser oscillator, optical path, beam convergence unit, motion unit, and sealing gas unit.
For laser welding, CO2 laser and YAG laser whose output has been increased are utilized as the oscillator.
Laser beam is generated at the oscillator, and transferred through optical path to beam convergence unit. CO2 laser is transferred by mirror (fixed optical system), and YAG laser is by optical fiber as well as mirror.
The transferred laser light is converged to the proper size by beam convergence unit, composed of parabolic mirror or convergence lens, etc.
During the welding process by the converged laser beam, sealing gas (argon, helium, nitrogen) is usually applied in order to prevent oxidation of the weld area. SpeedFam supplies the suitable gas nozzles.
Electronics parts, machine parts, or automobile parts are typical laser welding applications. Laser process can be utilized from precise process to thick metal welding.
Visual confirmation of the actual process is possible. Compact size enables easy replacement for existing production line. You can select the focal length from 40, 50, 70, 90, 120, and 150mm. (Special specification available)
or applications having difficulty of direct visual /confirm/iation, the focus unit with CCD camera provides a clear view of the process area through a monitor screen.
With this focus unit, physical process position can be precisely adjusted, and the image recognition is helpful for production automation.
Coaxial incident fiber, ring, or side fiber type can be chosen for lighting. You can select the focal length from 40, 50, 70, 90, 120, and 150mm. (Special specification available)
A focus unit with a high focus lens is optional.
Optical fiber
| Step-index optical fiber(SI optical fiber) | Graded-index optical fiber(GI optical fiber) |
|---|---|
| Core diameter [0/1/0.2/0.3/0.4/0.6/0.8/1.0/1.2mm] |
Core diameter [0/1/0.2/0.3/0.4/0.6/0.8/1.0/1.2mm] |
Selection of optical fiber
As optical system, fixed optical system and fiber optical system are selectable. Their features are as follows.
Fixed optical system
Suitable for small spot diameter of 100um or the less, by direct focus of laser beam
Fiber optical system
In laser welding process, workpiece fixing is very important. Recently processes for small parts are increasing, and positioning of workpiece is getting difficult. While thick workpiece welding can allow small gap between the parts, thin workpiece requires severe contact between them. Welding gap between thin parts may make blowhole.
In case of automation production, inadequate positioning makes troubles. With proper fixtures, automation system can be materialized. Special fixture design may be required by the workpiece shape.
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