Shipbuilding Industry

1.Chongqing Gearbox Co., Ltd (A) Company introduction: A member of China Shipbuilding Industry Corporation (B) Applied workpiece: gearbox (C) Effect: The following conclusions are drawn based on strict technical verification: Adopt Semboo harmonic frequency spectrum Vibratory stress relieving to replace the TSR process on all product parts. For the GWC7085 gearbox, errors are all within 0.03 through dismounting and measurement, dimension precision and geometrical precision are very stable; For VBP1800 gearbox, through twice measurement on flatness of its four faces, difference is within 0.02, dimension is quite stable. It is roughly estimated that saved cost is up to 0.5 million USD annually after using Semboo harmonic frequency spectrum Vibratory stress relieving than TSR. Written document makes it imperative that all parts suppliers should adopt Semboo’s Harmonic Frequency Spectrum Vibratory stress relieving.