Westinghouse Electric Corp., Bettis Atomic Power Laboratory, P.O. Box 79, 814 Pittsburgh-McKeesport Boulevard, West Mifflin, PA 15122-0079

34 -- METALWORKING MACHINERY SOL TRV-887399. Contact T.R. Valdisera (412) 476-6571. Provide a high power, neodymium doped, yttrium aluminum garnet, solid state system (1064 nm wavelength). The unit shall be a complete system capable of welding and cutting metallic, and cutting nonmetallic materials. Systems components must include the following as a minimum: (1) The average laser power exiting the laser head shall be greater than or equal to 1 kilowatt with 100% duty cycle as measured by a calibrated laser power meter. Continuous wave and pulsed lasers will be considered; (2) A fiber optic laser beam delivery system shall be provided including an input system that focuses the laser beam into a solid fused quartz (fused silica, glass) fiber and an output lens system that refocuses the laser beam exiting the fiber with less than 15% laser power loss for a 10 meter fiber system relative to the average power exiting the laser head; (3) A water cooled water chiller shall remove all excess heat from the laser cavities and laser beam dump(s) at maximum laser poweer; (4) The laser power source and water chiller shall operate an electrical input of 460 volts, 3 phase, and 60 Hz; (5) Laser head alignment of the laser beam components shall be rigidly set before shipping and rechecked by the seller at the buyer's facility after installation and before laser operation; (6) The fiber optic system shall have a safety system such that if the fiber should fail during operation, the entire laser the entire laser system shuts down except water cooling and chilling; (7) All components of the laser system and fiber optics system shall have a minimum of a one year warranty of parts and labor; (8) Delivery of the unit is required within 16 weeks from the order date; (9) Training materials, operation instructions, maintenance manuals and drawings of the components shall be delivered with the laser unit; (10) The laser unit shall have a safety interlock system that will shut down the laser when tripped; (11) The laser unit shall be capable of operating in a 20 foot by 8 foot room with no ear protection required; (12) The laser with fiber optics system shall be capable of integrating with a robot; (13) A CCTV or equivalent system shall be provided for seam alignment; (14) A low power helium-neon laser or equivalent shall be supplied to check the Nd:YAG laser beam alignment; (15) Training of personnel at Buyer's facility is required. The components of the system shall be of proven design with a history of satisfactory performance. The Seller shall provide objective evidence of the ability of this laser system to product sound welds and even cuts in austenitic stainless steel using the full laser power of the system. Metallographic examination of the test plates is required. The above tests are to be conducted at the vendor's site on the same unit that is to be shipped to Bettis. All system readouts, displays and data acquisition must be able to display and record in the English system of units. The Seller must provide the Buyer with a Certificate of Insurance prior to start of on-site work. Only those vendors who can provide and install a complete system need apply. Requests must be in writing and must be postmarked no later than fifteen (15) calendar days after date of publication. Telephone requests will not be honored. (139)

Loren Data Corp. http://www.ld.com (SYN# 0291 19950522\34-0001.SOL)