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In this paper, the self-infeed rolling process of thread shaft with medium carbon steel AISI 1045 is investigated. Firstly, the principle of the self-infeed rolling process is introduced and then the deformation mechanism is analyzed by finite element method. The numerical results show that deformation mainly occurs on the surface layer of blank, and the deformation degree is different in the tooth...
Asteroid detection has become an important part of the deep space exploration. The landing mechanism is easy to flow away from the asteroid surface because it is of microgravity and the rotation speed of the asteroid is high, thus the landing mechanism need to be fixed on the asteroid by anchor system after landing. Therefore, it is feasible to achieve a stable landing of asteroid lander, and provide...
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