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Laser beam welding (LBW) is a welding technique used to join pieces of metal or thermoplastics through the use of a laser. The beam provides a concentrated heat source, allowing for narrow, deep welds and high welding rates.
Singer Bangladesh began in 1905. In 1920, two shops were set up in Dhaka and Chittagong. [1] In 1947, after the Partition of the sub-continent, now Bangladesh became East Pakistan. Singer in East Pakistan operated as a branch of Singer Pakistan and the products used to come from West Pakistan. Initially, only 10 shops were set up, which grew to ...
Laser welding of polymers is a set of methods used to join polymeric components through the use of a laser. It can be performed using CO 2 lasers , Nd:YAG lasers , Diode lasers and Fiber lasers . [ 1 ]
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A fiber laser (or fibre laser in Commonwealth English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. They are related to doped fiber amplifiers, which provide light amplification without lasing.
Singer Corporation is an American manufacturer of consumer sewing machines, first established as I. M. Singer & Co. in 1851 by Isaac M. Singer with New York lawyer Edward C. Clark. Best known for its sewing machines, it was renamed Singer Manufacturing Company in 1865, then the Singer Company in 1963.
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