scholarly journals Influence of Reduction Distribution on Internal Defects During Cross-wedge-rolling process

2014 ◽  
Vol 81 ◽  
pp. 263-267 ◽  
Author(s):  
Guihua Liu ◽  
Zhiping Zhong ◽  
Zhi Shen
Keyword(s):  
Rolling Process ◽  
Cross Wedge Rolling ◽  
Internal Defects

FEM Simulation Analysis of Cross Wedge Rolling Process

2011 ◽  
Vol 381 ◽  
pp. 72-75
Author(s):  
Bin Li
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Fem Simulation ◽  
Rolling Process ◽  
Stress Distributions ◽  
Cross Wedge Rolling ◽  
Forming Process ◽  
Pressure Distributions ◽  
Metal Forming Process ◽  
Rolling Load

This paper investigates the interfacial slip between the forming tool and workpiece in a relatively new metal forming process, cross-wedge rolling. Based on the finite elements method, three-dimensional mechanical model of cross wedge rolling process has been developed. Examples of numerical simulation for strain, stress distributions and rolling load components have been included. The main advantages of the finite element method are: the capability of obtaining detailed solutions of the mechanics in a deforming body, namely, stresses, shapes, strains or contact pressure distributions; and the computer codes, can be used for a large variety of problems by simply changing the input data.

scholarly journals Physical Modeling of Cross Wedge Rolling Limitations

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 867 ◽  
Author(s):  
Łukasz Wójcik ◽  
Zbigniew Pater ◽  
Tomasz Bulzak ◽  
Janusz Tomczak
Keyword(s):  
Physical Modeling ◽  
Laboratory Testing ◽  
Physical Modelling ◽  
Rolling Process ◽  
Model Material ◽  
Model Tests ◽  
Cross Wedge Rolling ◽  
Comparison Of The Results ◽  
Cracking Process ◽  
Grade Steel

This article presents the results of model tests aiming to verify the possibility of applying commercial plasticine as a model material for modelling the limits to the cross-wedge rolling process. This study presents a comparison of the results of laboratory testing and physical modelling of cross-wedge rolling (CWR) processes. Commercial plasticine was the model material used in the research to model 50HS grade steel formed in 1150 °C. The model material was cooled to 0 °C, 5 °C, 10 °C, 12,5 °C, and 15 °C. Physical modelling of neckings and slippages is only possible when the plasticine is heated to 12.5 °C prior to forming. Commercial plasticine does not enable one to model the cracking process inside the rolled element.

Investigation of Simulation Parameters for Cross Wedge Rolling Titanium and Bainitic Grade Steel

2015 ◽  
Vol 736 ◽  
pp. 165-170 ◽  
Author(s):  
Thoms Blohm ◽  
Malte Stonis ◽  
B.A. Behrens
Keyword(s):  
Process Parameters ◽  
Rolling Process ◽  
Cross Wedge Rolling ◽  
Suitable Parameter ◽  
Simulation Parameters ◽  
Parameter Values ◽  
Grade Steel

In this paper the comparison of simulations of cross wedge rolling processes with real trials using flat cross wedge tools is presented. The investigated materials are titanium and bainitic grade steel. First simulations were used to find the suitable parameter combinations for the investigated materials. Afterwards tools were manufactured with these parameters and additionally with some variations to investigate a field of parameters around this range of parameter values. The purpose of these tests is to find geometrical and process parameters with which a stable cross wedge rolling process for bainitic grade steel and titanium is possible.

Strain Rules of Cross Wedge Rolling Asymmetric Shaft-Parts Based on the Parity Wedge

2012 ◽  
Vol 201-202 ◽  
pp. 1066-1070
Author(s):  
Zhan Li ◽  
Xue Dao Shu ◽  
Wen Fei Peng ◽  
Bao Shou Sun
Keyword(s):  
Theoretical Foundation ◽  
Longitudinal Section ◽  
Rolling Process ◽  
Field Analysis ◽  
Key Factors ◽  
Cross Wedge Rolling ◽  
Forming Process ◽  
Cross Sectional ◽  
Strain Fields ◽  
Forming Mechanism

The analysising of strain is the key factors to understand the forming mechanism of cross wedge rolling asymmetric shaft. due to the extrusion of dies and other external force, its interior,interactions can cause the relative position between the various parts. In order to study the deformation of workpiece at different degrees, pulling in the finite element strain field analysis, the strain of the analysis at deformation process is also a necessary precondition for forming and stress distribution. In this papre,By using Deform3D platform, the forming process of the cross wedge rolling on parity wedge asymmetric shaft is simulated. It is also to be analyzed the distribution and variation of the amount of strain in the rolling process, it shows that a cross-sectional and longitudinal section about the deformation characteristics of the strain fields, the results can achieve production of cross wedge rolling and provide important theoretical foundation to promote further cross-wedge rolling.

scholarly journals Fem Simulation of the Cross-Wedge Rolling Process for a Stepped Shaft

2017 ◽  
Vol 49 (4) ◽  
pp. 521-530 ◽  
Author(s):  
Z. Pater ◽  
J. Tomczak ◽  
T. Bulzak
Keyword(s):  
Fem Simulation ◽  
Rolling Process ◽  
Cross Wedge Rolling ◽  
Stepped Shaft ◽  
The Cross
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