With the development of spinning technology, spinning process has gradually replaced the traditional process to produce stainless steel pipe fittings. Western developed countries adopt technological blockade to our country on this technology. Therefore, our research goal is to achieve the ultimate thinning spinning of stainless steel pipe fittings and increase the diameter of stainless steel pipe fittings to 800mm. And develop and produce the corresponding specifications of pipe strong spinning equipment, to achieve large diameter stainless steel pipe production technology localization.
Stainless steel pipe fittings are mainly used in aerospace and weapon industry, and one of the most important advantages of metal spinning process is that it can produce seamless integral rotating hollow parts, which fundamentally eliminates the discontinuity, strength reduction, brittle crack and tensile stress concentration related to the weld. Based on the above force and energy parameters, the body structure of the powerful spinning machine is designed. The structure of the spinning wheel seat of the spinning machine is compared and the final scheme is determined.
The axial feed system and radial feed system are designed. Kinematic analysis of the transmission parts of the spindle structure; The newly designed unloading device is introduced in detail. Finally, finite element software ABAQUS is used to analyze the strength and stiffness of the body and movable beam of the spinning machine, and some improvement measures are put forward for the unreasonable design.
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