Mathematical Formulation for Development of Compound Curve Surface by Laser Line Heating

2015 ◽  
pp. 93-105
Author(s):  
Biplab Das ◽  
Pankaj Biswas
Keyword(s):  
Curve Surface ◽  
Mathematical Formulation ◽  
Laser Line ◽  
Line Heating

A strategy for achieving accurate bending by multi-pass laser line heating

2017 ◽  
Vol 10 (4) ◽  
pp. 277
Author(s):  
K. Kalita ◽  
P.P. Dutta ◽  
U.S. Dixit
Keyword(s):  
Laser Line ◽  
Line Heating

Effect of operating parameters on plate bending by laser line heating

2015 ◽  
Vol 231 (10) ◽  
pp. 1812-1819 ◽  
Author(s):  
Biplab Das ◽  
Pankaj Biswas
Keyword(s):  
Operating Parameter ◽  
Scanning Speed ◽  
Substrate Material ◽  
Laser Line ◽  
Optimum Process ◽  
Operating Parameters ◽  
Plate Bending ◽  
Line Heating ◽  
Optimum Process Parameter ◽  
Angular Deformation

Laser line heating is a plate bending technique. It is produced due to the heating effect of a laser beam when irradiated over a suitable heating path. In this work, the effect on angular deformation under different operating parameters, such as energy (in terms of laser power), scanning speed and number of passes along with the thickness of the substrate material, was studied under straight line scanning schemes. In this experiment, CO2 laser has been used and the substrate material used is the mild steel sheet. The effect of each operating parameter was taken into account to find the optimum process parameter. The design of experiment has been applied with the help of Taguchi method, and the results were obtained and analysed with the help of analysis of variance and Taguchi analysis (signal-to-noise ratio), for the determination of the optimized values of the operating parameters with their effect towards angular deformation in the process. A regression analysis also has also been performed to obtain a suitable co-relationship between bending angle and other operating parameters.

scholarly journals Effect of Heating Order on Twisted Curved Surface Forming by Orthogonal Laser Line Heating on Top and Bottom Surfaces Alternately

2015 ◽  
Vol 79 (12) ◽  
pp. 639-643 ◽  
Author(s):  
Tetsuya Akiyama ◽  
Takanori Kitamura ◽  
Hirohiko Kakiuchi ◽  
Ryohei Hada ◽  
Akira Gotoh
Keyword(s):  
Laser Line ◽  
Curved Surface ◽  
Line Heating

A strategy for achieving accurate bending by multi-pass laser line heating

2017 ◽  
Vol 10 (4) ◽  
pp. 277
Author(s):  
P.P. Dutta ◽  
U.S. Dixit ◽  
K. Kalita
Keyword(s):  
Laser Line ◽  
Line Heating

Discussion of the Oblique Rotator Model Cases Of 108 Aqr and x Serp.

1976 ◽  
Vol 32 ◽  
pp. 577-588
Author(s):  
C. Mégessier ◽  
V. Khokhlova ◽  
T. Ryabchikova
Keyword(s):  
Mathematical Formulation ◽  
The Other ◽  
Rotator Model ◽  
Oblique Rotator ◽  
First Results

My talk will be on the oblique rotator model which was first proposed by Stibbs (1950), and since received success and further developments. I shall present two different attempts at describing a star according to this model and the first results obtained in the framework of a Russian-French collaboration in order to test the precision of the two methods. The aim is to give the best possible representation of the element distributions on the Ap stellar surfaces. The first method is the mathematical formulation proposed by Deutsch (1958-1970) and applied by Deutsch (1958) to HD 125248, by Pyper (1969) to α2CVn and by Mégessier (1975) to 108 Aqr. The other one was proposed by Khokhlova (1974) and used by her group.

Burgers fluid flow in perspective of Buongiorno’s model with improved heat and mass flux theory for stretching cylinder

2020 ◽  
Vol 92 (3) ◽  
pp. 31101
Author(s):  
Zahoor Iqbal ◽  
Masood Khan ◽  
Awais Ahmed
Keyword(s):  
Diffusion Process ◽  
Mathematical Formulation ◽  
Thermal Relaxation ◽  
Mass Diffusion ◽  
Stretching Cylinder ◽  
Discussion Section ◽  
Buongiorno’S Model ◽  
Homotopy Analysis ◽  
Burgers Fluid ◽  
Diffusion Phenomena

In this study, an effort is made to model the thermal conduction and mass diffusion phenomena in perspective of Buongiorno’s model and Cattaneo-Christov theory for 2D flow of magnetized Burgers nanofluid due to stretching cylinder. Moreover, the impacts of Joule heating and heat source are also included to investigate the heat flow mechanism. Additionally, mass diffusion process in flow of nanofluid is examined by employing the influence of chemical reaction. Mathematical modelling of momentum, heat and mass diffusion equations is carried out in mathematical formulation section of the manuscript. Homotopy analysis method (HAM) in Wolfram Mathematica is utilized to analyze the effects of physical dimensionless constants on flow, temperature and solutal distributions of Burgers nanofluid. Graphical results are depicted and physically justified in results and discussion section. At the end of the manuscript the section of closing remarks is also included to highlight the main findings of this study. It is revealed that an escalation in thermal relaxation time constant leads to ascend the temperature curves of nanofluid. Additionally, depreciation is assessed in mass diffusion process due to escalating amount of thermophoretic force constant.

Path planning strategies for laser line forming

2003 ◽  
Author(s):  
Edward Reutzel ◽  
Kevin Gombotz ◽  
Richard Martukanitz ◽  
Panagiotis Michaleris
Keyword(s):  
Path Planning ◽  
Laser Line ◽  
Planning Strategies

Continuing development of a laser line forming system

2002 ◽  
Author(s):  
E. W. Reutzel ◽  
J. U. Aburdene ◽  
K. J. Gombotz ◽  
J. P. Magnusen ◽  
R. P. Martukanitz ◽  
...  
Keyword(s):  
Laser Line
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