This disclosure describes the design and manufacture of an acoustic transducer with superior radiation efficiency. In contrast to traditional acoustic transducers, the diaphragm and the speaker frame are bonded along a vertical surface, and the flange of the diaphragm is removed using laser cutting. The manufacturing procedure includes applying ultraviolet adhesive to the vertical side of frame; assembling the diaphragm into the fixture; combining the frame and the diaphragm together with fixture; curing the adhesive with ultraviolet light; removing the fixture; and laser-cutting the flange shape of diaphragm.
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Anonymous, "Manufacture of Acoustic Transducer With Improved Radiation Efficiency", Technical Disclosure Commons, (August 14, 2020)