Original scientific paper

Study on the control of end quality by one closed cross wedge rolling based wedge block

X. D. Shu ; College of Mechanical Engineering and Mechanics, Ningbo University, China
J. Wei ; College of Mechanical Engineering and Mechanics, Ningbo University, China
C. Liu ; College of Mechanical Engineering and Mechanics, Ningbo University, China

Abstract

The paper presents a new method of one closed cross wedge rolling (CWR) based wedge block to achieve near net forming of CWR shafts. The modeling is performed by using the Finite Element Method (FEM) software DEFORM-3D. The metal flow rule of the shaft is clarified by analyzing the strain and displacement field of the shaft. The results demonstrate that the concave heart value of rolled part end will be reduced by about 70 % by one closed CWR based wedge block, comparing it with the case without wedge block. And also the rolling experiments are performed the result of which provides reliable theoretical basis for achieving near net forming of CWR.

Keywords

cross wedge rolling; concave heart; wedge block; strain; FEM

Hrčak ID:

168905

URI

https://hrcak.srce.hr/168905

Publication date:

2.1.2017.

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