Japan Futaba Industry Co., Ltd. has developed a "long-distance processing welding machine" for processing automotive stamping parts. The structure of the machine is that the laser emitting port and the welding part are fixed, and the laser is reflected by the lens. I.......

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With Shaanxi Automobile's Cummins State Wuquan product was first launched in Zhengzhou, and subsequently released in Shanghai and Datong equivalent areas, the market has responded strongly to the purchase of cars, attracting a vigorous five-nation era.
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Recently, the results of the 2012 corporate credit evaluation organized and organized by the China Enterprise Confederation were announced. Weichai Power won the highest honor in corporate credit rating – “AAA-grade credit enterprise”.

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1 Introduction This paper uses the finite element method to establish a complete and accurate dynamic model of the gear system including the gear pair, the drive shaft, the bearing and the box; the dynamic excitation of the helical gear and the components of the powder metallurgy helical gear s.......