High average power long pulse duration fiber coupled pulsed Nd:YAG lasers are highly useful in cutting, welding, drilling and surface melting of metal sheets and pipes remotely with minimum heat affected zone, distortion and shrinkage. There are three-time shared fiber optic ports, which can be switched very easily for different jobs of cutting/welding/drilling at three different work stations. These lasers can be utilized for material processing in dry air as well as in underwater conditions.  This laser is capable of cutting of up to 12 mm thick SS sheets and welding of up to 2 mm depth in SS. Laser surface melting for corrosion resistance of stainless steel can also be performed. Drilling of holes in the range of 100 µm-1 mm can be performed very easily. Fabrication and assembly of laser cutting and welding heads along with recipe for cutting and welding process optimization for different metals/alloys is also available. This laser has also been efficiently used for non-contact in-situ cutting and welding in highly radioactive zones for refurbishment of nuclear power plants of NPCIL using different remotely operable manipulators. Further, this laser is also useful in welding of heart pacemaker, leak tight joints for medical devices and leak tight joints for vacuum grade applications.  This technology is being offered with the development of customized laser workstation under in-house technology co-development/ incubation program.

Detailed Technical Brochure

1. Product Technical Specification

Additional requirements for laser cutting/welding:

1. XY-table or CNC workstation for cutting and welding (customized)
2. High pressure gas (compressed air, Oxygen at ~ 10 bar)
3. Rotary stage for circumferential welding
4. For high quality welding, vacuum chamber/inert atmosphere with argon purging

2.Typical End Applications

1. Laser cutting of different profiles/shapes in metal sheets for fabrication of industrial components
2. Laser welding of medical devices and industrial products
3. Laser cutting of fragile material such as ceramics
4. Underwater cutting of metal components for maintenance /repair
5. Non-contact in-situ cutting and welding in highly radioactive zones of nuclear power plants of NPCIL using different remotely operable manipulators.
6. Welding of leak tight joints for vacuum grade applications
7. Surface melting of materials for corrosion resistance.

3. Facilities Required for Commercial Production

1. Floor area: A floor area  of  minimum  size  of  10  m  x  10  m  is  required  to  start  the  commercial production of 250 W average power fiber coupled pulsed Nd:YAG laser. The area must have at least two rigid working tables of size 2 m x 1.5 m.
2. Electrical connection: The workshop should have at least 3 No. of 3 phase, neutral, ground (415 A, 40 A) MCBs with 10 kW power consumption capabilities along with 220 V AC, 5 A, single phase electrical distribution board connections.
3. Basic facilities required
   • The workshop should be equipped with basic machining facilities such as bench vice, electrical drill machines and basic machining/fitting too kit.
   • The basic facilities related to optics like power meter, optical fiber cleaver, infra-red laser viewing cards, optics cleaning paper, acetone, should be available in the workshop.
   • The basic facilities related to electronics like digital multi meter, digital storage oscilloscope, soldering iron, wire cutter, wire stripper etc. must be available in the workshop.

4. Manpower Requirement