Deformation Characteristics on Three-Roll-Type and Two-Roll-Type Ring Rolling

2011 ◽  
Vol 52 (611) ◽  
pp. 1302-1303
Author(s):  
Toshifusa NAKAMIZO
Keyword(s):  
Ring Rolling ◽  
Deformation Characteristics ◽  
Roll Type

Clarification of Rolling Characteristics in Three-roll-type Ring Rolling Process and Application to Profiled Ring Products

2015 ◽  
Vol 56 (659) ◽  
pp. 1039-1043
Author(s):  
Toshifusa NAKAMIZO ◽  
Morihiko NAKASAKI ◽  
Masaya NAGAI ◽  
Hiroyuki MYOCHIN ◽  
Ichiro TAKASU ◽  
...  
Keyword(s):  
Rolling Process ◽  
Ring Rolling ◽  
Roll Type ◽  
Ring Rolling Process

scholarly journals Development of CAE Analysis in Three-Roll-Type Ring Rolling

2009 ◽  
Vol 50 (584) ◽  
pp. 873-877 ◽  
Author(s):  
Morihiko NAKASAKI ◽  
Toshifusa NAKAMIZO ◽  
Ichiro TAKASU ◽  
Hiroshi UTSUNOMIYA
Keyword(s):  
Ring Rolling ◽  
Roll Type ◽  
Cae Analysis

The Optimal Design for Ring Blank Dimensions in Inner L-Shaped Ring Rolling Process

2014 ◽  
Vol 599-601 ◽  
pp. 511-516
Author(s):  
Wen Meng ◽  
Guo Qun Zhao ◽  
Yan Jin Guan
Keyword(s):  
Optimal Design ◽  
Feed Rate ◽  
Rolling Process ◽  
Ring Rolling ◽  
Fe Model ◽  
Deformation Characteristics ◽  
Rolled Ring ◽  
Value Range ◽  
Ring Rolling Process ◽  
Ring Blank

As the needs of profiled rings continuously increase, studies about profiled ring rolling processes is becoming a hot problem. This paper established a FE model of hot ring rolling process of inner L-shaped ring based on ABAQUS/Explicit software. The reasonable value range of mandrel feed rate is determined at first. Then the deformation characteristics of rings are analyzed and compared in L-shaped ring rolling process under four different ring blank dimensions. Finally, for realizing a steady rolling process and obtaining good dimensions properties of rolled ring, an appropriate ring blank dimension is given.

scholarly journals Experimental Study of Deformation Characteristicsin Three-roll-type and Two-roll-type Ring Rolling Process

2012 ◽  
Vol 53 (613) ◽  
pp. 130-134 ◽  
Author(s):  
Toshifusa NAKAMIZO ◽  
Morihiko NAKASAKI ◽  
Ichiro TAKASU ◽  
Hiroshi UTSUNOMIYA
Keyword(s):  
Experimental Study ◽  
Rolling Process ◽  
Ring Rolling ◽  
Roll Type ◽  
Ring Rolling Process

Transmission Electron Microscopic Observations of Al3Li and Al3Ti Precipitation in A Rapidly Solidified Al-3Li-0.2Ti ALLOY

1980 ◽  
Vol 38 ◽  
pp. 336-337
Author(s):  
J. E. O’Neal ◽  
K. K. Sankaran ◽  
S. M. L. Sastry
Keyword(s):  
Rapid Solidification ◽  
Metallic Substrate ◽  
Deformation Characteristics ◽  
Phase Decomposition ◽  
Electron Microscopic ◽  
Transmission Electron ◽  
Supersaturated Solid Solutions ◽  
Transmission Electron Microscopic ◽  
Rapidly Solidified ◽  
Microstructural Homogeneity

Rapid solidification of a molten, multicomponent alloy against a metallic substrate promotes greater microstructural homogeneity and greater solid solubility of alloying elements than can be achieved by slower-cooling casting methods. The supersaturated solid solutions produced by rapid solidification can be subsequently annealed to precipitate, by controlled phase decomposition, uniform 10-100 nm precipitates or dispersoids. TEM studies were made of the precipitation of metastable Al3Li(δ’) and equilibrium AL3H phases and the deformation characteristics of a rapidly solidified Al-3Li-0.2Ti alloy.

Effect Of Elevated Temperatures On Complete Concrete Deformation Diagrams

2019 ◽  
pp. 9-14
Keyword(s):  
Experimental Data ◽  
Elastic Modulus ◽  
Elevated Temperatures ◽  
Peak Load ◽  
Relative Deformation ◽  
Deformation Characteristics ◽  
Compression Tests ◽  
Strain Behavior ◽  
Different Temperatures ◽  
Deformation Diagrams

The analysis of the previous results of the study on concrete stress-strain behavior at elevated temperatures has been carried out. Based on the analysis, the main reasons for strength retrogression and elastic modulus reduction of concrete have been identified. Despite a significant amount of research in this area, there is a large spread in experimental data received, both as a result of compression and tension. In addition, the deformation characteristics of concrete are insufficiently studied: the coefficient of transverse deformation, the limiting relative compression deformation corresponding to the peak load and the almost complete absence of studies of complete deformation diagrams at elevated temperatures. The two testing chambers provided creating the necessary temperature conditions for conducting studies under bending compression and tension have been developed. On the basis of the obtained experimental data of physical and mechanical characteristics of concrete at different temperatures under conditions of axial compression and tensile bending, conclusions about the nature of changes in strength and deformation characteristics have been drawn. Compression tests conducted following the method of concrete deformation complete curves provided obtaining diagrams not only at normal temperature, but also at elevated temperature. Based on the experimental results, dependences of changes in prism strength and elastic modulus as well as an equation for determining the relative deformation and stresses at elevated temperatures at all stages of concrete deterioration have been suggested.

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