在上述模型的基础上，分析了对错距旋压仿真模型边界模式的影响。在分程旋压

Based on the above model, the influence on the boundary mode of the stagger spinning simulation model is analyzed. In the actual forming process of split spinning, the three rollers are responsible for each specified thinning, and multiple thinning tasks are completed in one feed. The mandrel rotates at a constant speed, the blank and the mandrel are passively rotated, and the runner is fed along a linear axis to passively rotate. <br>There are two different boundary modes in the existing staggered spinning prediction model. Allowing simultaneous realization of a blank core <br>from the perspective of relative motion, Ma Jiecong, etc. The blank and the punch are equivalent to a fixed state, which realizes the combination of the billet rotation and the wheel feed in the runner, and feeds the spiral trajectory according to the central axis of the model. This equivalent method is called displacement boundary mode. Similarly, Mohebbi et al. According to the actual processing conditions, a finite offset spinning model for the rotation of Mandalay blanks and the axial feed of the runner was established, called the velocity boundary model. <br>Displacement boundary mode is widely used because of its relatively simple implementation. <br>Some scholars have also mentioned the speed boundary mode recently . In this part, based on the existing two models, a comparative analysis is carried out in order to provide a reference for the correct selection of the motion model.

On the basis of the above model, the influence on the boundary model of the mis-distance rotation simulation model is analyzed. In the actual forming process of split-channel rotary pressure, the three rollers are responsible for the reduction of each prescribed thinning, and multiple thinning work is completed in one feed. The spindle rotates at constant speed, the blanks and the spindle rotate passively, the wheels are given in a straight axis, and the rotation is passive.<br>Existing miscyclone prediction models have two different boundary patterns. Allow blank cores to be implemented at the same time<br>From the point of view of relative movement, Ma Jiecong and so on. The blank is equivalent to a fixed state with the convex mold, the composite of the billet rotation and wheel feed in the wheel is realized, and the spiral track is fed according to the central axis of the model. This equivalent method is called the displacement boundary pattern. Similarly, Mohebbi et al. According to the actual processing conditions, a limited bias rotation and wheel axial feed of Mandalay blanks is established, called the speed boundary model.<br>The displacement boundary pattern is widely used because of its relatively simple implementation. Speed boundary mode is also recently<br>Some scholars mention that this part of the existing two models on the basis of comparative analysis, in order to correctly select the motion model to provide reference.

Based on the above model, the influence of boundary mode on the simulation model of stagger spinning is analyzed. In the actual forming process of split spinning, three rollers are responsible for each specified thinning, and multiple thinning work is completed in one feed. The spindle rotates at a constant speed, the billet and spindle rotate passively, the runner feeds along the linear axis, and rotates passively.<br>There are two different boundary models for the prediction of staggered spinning. Allow blank cores to be implemented at the same time<br>From the perspective of relative movement, Ma jiecong, etc. The blank and punch are equivalent to a fixed state, which realizes the combination of billet rotation and wheel feed in the runner, and feeds the spiral track line according to the central axis of the model. This equivalent method is called displacement boundary mode. Likewise, mohebbi et al. According to the actual processing conditions, the finite offset spinning model of Mandalay blank rotation and runner axial feed is established, which is called velocity boundary model.<br>Displacement boundary model is widely used because of its relatively simple implementation. Speed boundary mode is also the latest<br>Some scholars mentioned that based on the existing two models, this part carried out a comparative analysis, in order to provide a reference for the correct selection of motion model.<br>