On the basis of analysis of the existing literature on the elastic-plastic mechanics theory as the main theoretical basis, combining experimental study analyzes the shaft parts in the process of straightening stress and strain changes in the process, established for most Shaft correction Pamberg-Osgood power parts reinforcing material constitutive equations, and deduced analyzed shoulder design elements such as shaft parts of the straightening process affected. Analysis of the axial force of the impact straightening process using three-dimensional nonlinear finite element method. For single curved arc of the large deformation straightening problem, first based on elastic-plastic fracture mechanics theory concerning integration, including the establishment of a unilateral radial cracks shaft straightening stroke feasible region of non-standard shaft parts prices and the experimental non-standard shaft parts wholesale, including the establishment of unilateral radial cracks shaft straightening stroke recursive algorithm. No crack shaft alignment problems for the single arc of bending deformation, based on generalized predictive control theory, a multi-step prediction algorithm straightening stroke. For more radian bending axis alignment problem, according to modern optimization theory, a heuristic algorithm based on a weighted evaluation function, and through experiments that the impact of the presence of a weighted sequence alignment process. 1765 Non-standard shaft parts craft, Switzerland L. Euler proposed mathematical basis involute analytical studies to clarify a pair of meshing gears, the relationship between the radius of curvature of the curve and its center of curvature of the tooth position. Later, Savary further complete this method, into the present Eu-let-Savary equation. Application of involute contribute is Roteft WUlls, when he proposed center distance changes, involute gear ratio has the advantage of a constant angle. In 1873, German engineer Hoppe put on a different number of teeth involute gear change in pressure angle, and thus laid the ideological foundation of modern displacement gear. Non-standard shaft parts parameters, Fuyuan gear at reasonable prices, Sanya non-standard shaft parts provided by Luoyang Fuyuan Gear Machinery Limited. Luoyang Fuyuan Gear Machinery Co., Ltd. (www.lyfycl.com) is a leader in Luoyang, Henan Province, gear over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Fuyuan gear in leadership with the staff warmly welcome all inquiries negotiations to create a better future Fuyuan gear.