Study on Spinning of Pentagonal Cross-Section Hollow-Part Based on Orthogonal Experiment Design

Abstract

The investigation of the effect of processing parameters on forming quality has been one of the highlight researches in spinning. The thickness distribution is an important criterion to evaluate the forming quality. Spinning force affects the processing and equipment design greatly. Combining with the FEA simulation and orthogonal test method, taking the maximum reduction ratio in thickness of workpiece and the maximum spinning force as the evaluation criterion, the esequence of the main forming parameters, such as the feed rate and roundness radius of roller, and the relative height of workpiece were analyzed based on an orthogonal scheme of three-factor and three-level. Both FEA simulation and experiment results show that, during the pentagonal section hollow-part spinning, the influence sequence on the maximum reduction ratio in thickness is relative height of workpiece, feed rate and roundness radius of roller; the influence sequence on the maximum spinning force is relative height of workpiece, roundness radius of roller and feed rate.

A review of process advancement of novel metal spinning

“…Research investigations based on many experiments have shown that the spinning processes can be successfully used to produce a variety of complex hollow parts with non-circular cross-sections [26]. Xia et al developed a non-circular spinning method based on profiling driving method to produce various hollow parts with polygonal cross-sections, such as triangle arc-type cross-section [27], quadrilateral arc-type [28], and five straight-edge roundness-type [29]. Lai et al [30] successfully produced hollow parts with three straight-edge roundness-type cross-sections, also based on the profiling driving method.…”

“…By using this method, several types of polygonal parts are produced, as shown in Fig. 43, such as (a) three straight-edges roundness-type produced by Lai et al [30]; (b) triangle arc-type produced by Xia et al [27]; (c) quadrilateral arc-type produced by Xia et al [28]; (d) five straight-edges roundness-type produced by Xia et al [29]. These non-circular parts with various cross-section are obtained by using the cold rolled steel sheet SPCC of 2 mm in thickness, the maximum wall-thickness thinning ratio is ranging form 14 to 24% and the springback angle is less than 2.2° [31,53].…”

Analysis and Investigation of Trilateral Spinning Based on the Concentric Circle Trajectory

“…More recently, Xia et al [9][10][11] developed a spinning device for non-circular crosssections based on the profiling driving spinning method and they obtained several types of regular non-circular hollow parts, such as triangles, quadrilaterals, and pentagons. Shimizu [12] developed a non-circular spinning device, where a stepping motor controlled the rotation of a mandrel, while electric actuators controlled the radial feed of the roller and the axial movement of the workpiece.…”