scholarly journals Three-dimensional temperature prediction in cylindrical turning with large-chamfer insert based on a modified slip-line field approach

2020 ◽  
Author(s):  
Cheng HU ◽  
Kejia ZHUANG ◽  
Yuanwei TANG ◽  
Jian WENG ◽  
Xiaoming ZHANG ◽  
...  
Keyword(s):  
Slip Line ◽  
Three Dimensional ◽  
Temperature Prediction ◽  
Line Field ◽  
Slip Line Field ◽  
Field Approach

Upper Bounds to the Load for the Plane Strain Working of Anisotropic Metals

1972 ◽  
Vol 14 (5) ◽  
pp. 297-306 ◽  
Author(s):  
W. Johnson ◽  
M. C. de Malherbe ◽  
R. Venter
Keyword(s):  
Plane Strain ◽  
Slip Line ◽  
Tangential Velocity ◽  
Upper Bounds ◽  
Line Field ◽  
Slip Line Field ◽  
Field Approach ◽  
Theoretical Foundations

The method of finding upper bounds to the load to work isotropic metals under conditions of plane strain using tangential velocity discontinuities is extended to include anisotropic metals. The theoretical foundations of the method are presented and three simple examples are given, followed by one which results in a solution identical to that given by the standard slip-line field approach. An approach for load bounding using isotropic slip-line fields is suggested.

Slip Line Field Analysis of a Simple Plane Strain Closed-Die Forging

1989 ◽  
Vol 203 (2) ◽  
pp. 91-99
Author(s):  
M V Srinivas ◽  
P Alva ◽  
S K Biswas
Keyword(s):  
Velocity Field ◽  
Plane Strain ◽  
Slip Line ◽  
Field Analysis ◽  
Line Field ◽  
Slip Line Field ◽  
Die Forging ◽  
Closed Die Forging ◽  
Cavity Filling ◽  
Single Cavity

A slip line field is proposed for symmetrical single-cavity closed-die forging by rough dies. A compatible velocity field is shown to exist. Experiments were conducted using lead workpiece and rough dies. Experimentally observed flow and load were used to validate the proposed slip line field. The slip line field was used to simulate the process in the computer with the objective of studying the influence of flash geometry on cavity filling.

The Relation Between the Friction of Lubricated Rough Surfaces and Apparent Normal Pressure

1989 ◽  
Vol 111 (2) ◽  
pp. 260-264 ◽  
Author(s):  
P. Lacey ◽  
A. A. Torrance ◽  
J. A. Fitzpatrick
Keyword(s):  
Surface Roughness ◽  
Friction Coefficient ◽  
Boundary Lubrication ◽  
Slip Line ◽  
Field Model ◽  
Rough Surfaces ◽  
Normal Pressure ◽  
Line Field ◽  
Slip Line Field ◽  
Asperity Contacts

Most previous studies of boundary lubrication have ignored the contribution of surface roughness to friction. However, recent work by Moalic et al. (1987) has shown that when asperity contacts can be modelled by a slip line field, there is a precise relation between the friction coefficient and the asperity slope. Here, it is shown that there is also a relation between the friction coefficient and the normal pressure for rough surfaces which can be predicted from a development of the slip line field model.

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