scholarly journals Effect of mandrel diameter on non-circularity of hollow shafts in cross wedge rolling

2017 ◽  
Vol 207 ◽  
pp. 2376-2381 ◽  
Author(s):  
Xu Huang ◽  
Baoyu Wang ◽  
Jianguo Lin ◽  
Chuanbao Zhu
Keyword(s):  
Cross Wedge Rolling ◽  
Mandrel Diameter ◽  
Hollow Shafts

scholarly journals Modified Cross-Wedge Rolling for Creating Hollow Shafts

2018 ◽  
Vol 21 ◽  
pp. 53-59 ◽  
Author(s):  
Dirk Landgrebe ◽  
Jürgen Steger ◽  
Uwe Böhmichen ◽  
Markus Bergmann
Keyword(s):  
Cross Wedge Rolling ◽  
Hollow Shafts

Producing Hollow Shafts in a New Horizontal Mill by Novel Flat-Knifing Cross-Wedge Rolling With Single Guide

2021 ◽  
Author(s):  
Longfei Lin ◽  
Baoyu Wang ◽  
Jinxia Shen ◽  
Tao Liu
Keyword(s):  
Numerical Simulations ◽  
Experimental Tests ◽  
Radial Force ◽  
Transportation Industry ◽  
Cross Wedge Rolling ◽  
Forming Defect ◽  
Engineering Significance ◽  
Novel Method ◽  
Hollow Shafts ◽  
Rolling Stability

Abstract To meet the requirement of lightweight, there are increasing solid shafts being designed to be hollow in transportation industry. In this study, a novel method of flat-knifing cross-wedge rolling (FCWR) with single guide is proposed including a modified roller, a horizontal mill and a single-guide structure, and its key problems are studied by numerical simulations and experimental tests. A mathematical model of FCWR roller is established, which reveals the wedge length of rollers is effectively reduced by modifying knifing wedge from normalized roller. Further, a horizontal multifunctional mill is invented and constructed to carry out the FCWR experiment with single guide. According to the results from the numerical simulations and corresponding experiments, it is observed that the typical defects of hole expansion and knifing groove are absolutely avoided because the improved flat-knifing wedge produces a radial force to shrink the inner hole and avoid the deformation concentration of the outer surface during knifing stage. Moreover, the single guide rolling performed in the horizontal mill efficiently improve rolling stability because the workpiece is restricted into a smaller workspace. To the authors’ knowledge, all these integrated improvements of FCWR roller, single guide rolling and horizontal mill are innovative, which are of great engineering significance to manufacture hollow shafts on account of the advantages of avoiding forming defect, reducing roller diameter, improving rolling stability and simplifying mill structure.

Numerical and experimental study on the inner diameter uniformity of hollow shafts in cross-wedge rolling with mandrel

2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Jing Zhou ◽  
Jinxia Shen ◽  
Baoyu Wang ◽  
Xu Huang ◽  
Wei Guo
Keyword(s):  
Experimental Study ◽  
Cross Wedge Rolling ◽  
Inner Diameter ◽  
Hollow Shafts

Theoretical study and prediction of the inner hole reduction and critical mandrel diameter in cross wedge rolling of hollow shaft

2021 ◽  
Vol 294 ◽  
pp. 117140
Author(s):  
Jinxia Shen ◽  
Baoyu Wang ◽  
Cuiping Yang ◽  
Jing Zhou ◽  
Xiaoqing Cao
Keyword(s):  
Theoretical Study ◽  
Cross Wedge Rolling ◽  
Hollow Shaft ◽  
Mandrel Diameter

Research on the Status and Prospect of the Hollow Shafts Forming Technology in High-Speed Train

2012 ◽  
Vol 201-202 ◽  
pp. 1071-1075
Author(s):  
Shu Hua Zheng ◽  
Wen Fei Peng ◽  
Xue Dao Shu
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Lightweight Construction ◽  
Cross Wedge Rolling ◽  
Heavy Load ◽  
Hollow Shaft ◽  
Forming Technology ◽  
The Status ◽  
New Type ◽  
Hollow Shafts

High-speed and heavy-load are the targets to pursue over a long period of time in high-speed transportation. The key to solve this problem is making the components lightweight. Particularly, the hollow shaft is a new type of lightweight construction. This article explains systematically the current situation and the defects of forming technique for the hollow shafts. The solid shafts formed by Multi-Wedge Cross Wedge Rolling (MCWR) and the hollow shafts by Cross Wedge Rolling(CWR) are researched, and the key problems of hollow shafts formed in MCWR to solve emphatically are pointed out. At the same time, we obtain that MCWR will be the main technology in forming long shafts. The results in this paper provide a new direction for the hollow shafts to form in a high efficiency, energy saving and material saving method.

Simulation Analysis of Cross Wedge Rolling Hollow Parts with Mandrel

2012 ◽  
Vol 538-541 ◽  
pp. 542-547 ◽  
Author(s):  
Cui Ping Yang ◽  
Kang Sheng Zhang ◽  
Zheng Huan Hu
Keyword(s):  
Finite Element Method ◽  
Cross Section ◽  
Simulation Analysis ◽  
Rolling Process ◽  
Cross Wedge Rolling ◽  
Contour Maps ◽  
Strain Change ◽  
Hollow Part ◽  
Light Components ◽  
Hollow Shafts

Cross wedge rolling hollow shafts with a mandrel has attracted much attention in the recent years because of the demand for light components. Finite element method was used to simulate the rolling process of hollow part and validated by experiment. By tracking strain change of the typical points and analyzing the strain contour maps of cross-section at four typical moments, the cause of cross section oval and shaft shoulder protuberance of part is expounded.

Investigation on the inner hole spiral-groove of cross wedge rolling of hollow shafts with mandrel

2020 ◽  
Vol 110 (7-8) ◽  
pp. 1773-1787
Author(s):  
Jinxia Shen ◽  
Baoyu Wang ◽  
Jing Zhou ◽  
Longfei Lin ◽  
Shengqiang Liu ◽  
...  
Keyword(s):  
Spiral Groove ◽  
Cross Wedge Rolling ◽  
Hollow Shafts

Establishment of failure conditions for the cross-wedge rolling of hollow shafts

2006 ◽  
Vol 177 (1-3) ◽  
pp. 545-549 ◽  
Author(s):  
S. Urankar ◽  
M. Lovell ◽  
C. Morrow ◽  
Q. Li ◽  
K. Kawada
Keyword(s):  
Cross Wedge Rolling ◽  
The Cross ◽  
Failure Conditions ◽  
Hollow Shafts

Numerical and experimental research on cross wedge rolling hollow shafts with a variable inner diameter

2019 ◽  
Vol 19 (4) ◽  
pp. 1497-1510 ◽  
Author(s):  
Jinxia Shen ◽  
Baoyu Wang ◽  
Jing Zhou ◽  
Xu Huang ◽  
Junling Li
Keyword(s):  
Experimental Research ◽  
Cross Wedge Rolling ◽  
Inner Diameter ◽  
Hollow Shafts
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