Results 161 to 170 of about 538 (193)
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An Investigation on Microstructural Evolution of X70 Steel Pipe During Hot Induction Bending
Volume 1: Pipeline and Facilities Integrity, 2018It is generally accepted that hot induction bending (HIB) results in a decrease in strength and an increase in fracture toughness in bend area, heat affected zone (HAZ) and weld metal (WM). As the result, Post bend heat treatment (PBHT) is not considered to be a requirement and could be waived for saving money and time.
Moe Meschian +3 more
exaly +2 more sources
International Journal of Precision Engineering and Manufacturing, 2011
Pipe bending by high-frequency local induction heating is an advanced technique used to bend pipes having a small bending radius and a large diameter. Although pipe bending is a widely used engineering process, the optimum process parameters are decided on the basis of a trial and error method by highly experienced field engineers.
Chul Kim, Kim Chul
exaly +2 more sources
Pipe bending by high-frequency local induction heating is an advanced technique used to bend pipes having a small bending radius and a large diameter. Although pipe bending is a widely used engineering process, the optimum process parameters are decided on the basis of a trial and error method by highly experienced field engineers.
Chul Kim, Kim Chul
exaly +2 more sources
Development of X80 Grade Induction Bend Pipe
21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 2002API X80 grade induction bend pipe was developed using longitudinally submerged arc welded pipe as a mother pipe and applying subsequent quenching after induction heating and tempering in the full length portion. As a preliminary study for optimizing manufacturing process, the effect of heating process in induction bending had been investigated, and ...
Nobuyuki Ishikawa +3 more
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Optimization of Pipe Induction Bending Process Parameters
ASME 2017 India Oil and Gas Pipeline Conference, 2017Hot pushed induction heating is a bending process used to bend pipes having a small bending radius with a large diameter. This is a complex process since it involves mechanical process of bending and thermal process of localized induction heating. This paper deals with the optimization of induction bending process parameters such as bending speed ...
T. S. Kathayat +3 more
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Theory of pipe-bending to a small bend radius using induction heating
Journal of Materials Processing Technology, 1990Abstract A theory for the bending of inductively heated pipes to a small bend radius is presented. Stress-and strain-states under various loading conditions and for different bend radii are calculated and simulated numerically by the 3-D thermal elasto-plastic and the rigid-viscoplastic finite-element methods.
Wang Zutang, Hu Zhong
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Cracking Analysis of Induction Heat Bend Pipe of X70 Steel
Advanced Materials Research, 2012Experimental methods, such as OM, SEM and X-EDS, were used to study the transverse cracks appeared on the external arc of tensile region during pipe bending. The pipe line steel consists of acicular ferrite (AF) and granular bainite (GB) with good mechanical properties.
Lie Jun Li, Xiang Dong Huo, Lin Guo
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The International Journal of Advanced Manufacturing Technology, 2015
The constitutive equation of P11 alloy was built to describe the hardening curve obtained from the compression tests. Then, the local-induction-heating bending process of bend pipe with straight section was simulated by using the finite element method. The forming experiments were also performed based on the simulation results.
Xunzhong Guo +6 more
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The constitutive equation of P11 alloy was built to describe the hardening curve obtained from the compression tests. Then, the local-induction-heating bending process of bend pipe with straight section was simulated by using the finite element method. The forming experiments were also performed based on the simulation results.
Xunzhong Guo +6 more
openaire +1 more source
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2008
This paper briefly describes induction bending and highlights some of the challenges associated with this technique in the production of tight bends in thick-walled pipe. The authors then go on to describe how data obtained from production runs and specifically commissioned trial bends were used to examine the factors believed to influence the ...
G J Collie, I Black
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This paper briefly describes induction bending and highlights some of the challenges associated with this technique in the production of tight bends in thick-walled pipe. The authors then go on to describe how data obtained from production runs and specifically commissioned trial bends were used to examine the factors believed to influence the ...
G J Collie, I Black
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Study on the Heating Process and Properties of X80 Induction Heated Bending Pipe
Volume 6: Materials and Fabrication, Parts A and B, 2009Induction heated bending pipe is an important connecting piece widely used in natural gas pipeline. As the persistent development of natural gas pipeline project, the X80 induction heated bending pipe needed to be developed and studied. The local induction quenching process and the wholly induction quenching process were adopted to develop the Φ1219mm ...
Qiang Chi +3 more
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Induction Hot Bending and Heat Treatment of 20” API 5L X80 Pipe
Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B, 2006The present work discusses the effect of the induction hot bending process on the microstructure and the mechanical properties of an API 5L X80, 20” pipe produced by the UOE process. The key characteristic of the pipe was the manufacturing process of the steel plate, involving thermomechanical controlled rolling without accelerated cooling.
Gilmar Zacca Batista +3 more
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