Fuzzy Control for High Frequency Tube Welding System

Fuzzy Logic ◽  
1993 ◽  
pp. 553-567 ◽  
Author(s):  
Tadashi Iokibe
Keyword(s):  
Fuzzy Control ◽  
High Frequency ◽  
Tube Welding ◽  
Welding System

Development of In-Process Assurance Welding System

1993 ◽  
Vol 9 (02) ◽  
pp. 107-112
Author(s):  
Shoichiro Kaihara ◽  
Masaichi Kouketsu ◽  
Tatsuo Saitoh ◽  
Takehiro Murayama
Keyword(s):  
Quality Control ◽  
Statistical Analysis ◽  
Quality Monitoring ◽  
Welding Quality ◽  
Mig Welding ◽  
Digital Converter ◽  
Analog Digital Converter ◽  
Tube Welding ◽  
The Relationship ◽  
Welding System

The in-process assurance (IPA) welding system is the real-time weld quality monitoring system which is possible to abridge the nondestructive test (NDT) or decrease the number of NDTs. It consists of a personal computer, analog/digital converter, and several sensors such as voltage, current, velocity, sound, and torch distance. It is necessary to make clear the relationship between welding conditions and defects. The welding data of the IPA system for the automatic TIG tube welding and semiautomatic TIG and MIG welding were thoroughly studied and the following results were obtained:The IPA system is able to monitor welding conditions;quality control of welded joints is possible by statistical analysis of the IPA system; andwelding sound is useful for assurance of welding quality.

scholarly journals Electro Magnetic and Heat Conductive FE Analysis on High Frequency Tube Welding Process

2007 ◽  
Vol 93 (5) ◽  
pp. 373-378 ◽  
Author(s):  
Takatoshi OKABE ◽  
Kazuhito KENMOCHI ◽  
Kei SAKATA
Keyword(s):  
High Frequency ◽  
Welding Process ◽  
Fe Analysis ◽  
Tube Welding ◽  
Electro Magnetic

Numerical Simulation and Investigation of High Frequency Tube Welding Process

2014 ◽  
Vol 698 ◽  
pp. 245-250 ◽  
Author(s):  
Aleksandr Nikanorov ◽  
Egbert Baake ◽  
Jörg Neumeyer
Keyword(s):  
High Frequency ◽  
Numerical Models ◽  
Thermal Analyses ◽  
Three Dimensional ◽  
Thermal Characteristics ◽  
Welding Process ◽  
Practical Experience ◽  
Time Step ◽  
Tube Welding ◽  
Welding Processes

Welding processes and installations used nowadays are mainly developed on practical experience and analytical calculations. Nevertheless, high frequency induction tube welding is a very complex three-dimensional dynamic process, where the electromagnetic and thermal characteristics are distributed not only in space but in time as well. A more profound detailed investigation of the induction tube welding process can be only done by numerical modeling. Full and local three-dimensional transient numerical models of induction tube welding process with continuous movement of the welded tube have been developed and tested. Coupled electromagnetic and thermal analyses are carried out at each time step of simulation for correction of temperature dependent material properties. Voltage or current of the induction coil can be individually input into electromagnetic analysis at each time step. This approach allows simulating “quasi” steady-state and transient operation modes.

Comparison of a New High-Frequency Electric Welding System for Intestinal Closure with Hand-SewnIn VivoPig Model

2015 ◽  
Vol 25 (8) ◽  
pp. 662-667 ◽  
Author(s):  
Shuai Han ◽  
Zhai Cai ◽  
Xuanjing Ning ◽  
Linyun He ◽  
Jun Chen ◽  
...  
Keyword(s):  
High Frequency ◽  
Electric Welding ◽  
Welding System

Improving induction tube welding system performance using soft magnetic composites

2019 ◽  
Vol 39 (1) ◽  
pp. 185-191
Author(s):  
Sean Michael Muyskens ◽  
Tareq Ibrahim Eddir ◽  
Robert Charles Goldstein
Keyword(s):  
Three Dimensional ◽  
Three Dimensions ◽  
Process Efficiency ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Magnetic Composites ◽  
Content Type ◽  
Tube Welding ◽  
Electromagnetic Models ◽  
Welding System

Purpose This paper aims to demonstrate the benefits of using different impeder materials for induction tube welding systems. Design/methodology/approach To show the difference in using various impeder materials, a new approach was taken to model tube welding systems in two and three dimensions. Three-dimensional (3-D) electromagnetic models were used to determine the current distribution along the weld vee as well as the permeability of the tube along the length of the welding system. Two-dimensional (2-D) coupled electromagnetic plus thermal models with rotational movement were used to determine the temperature distribution in the heat-affected zone. Findings Simulation results suggest upwards of 25 per cent system power savings when using a soft magnetic composite (SMC) impeder rather than the traditional ferrites. Research limitations/implications There is currently a lack of experimental data to validate the models, but future work will include comparison of models to real-world trials. Practical implications When dealing with tube welding systems, there are possibilities to improve process efficiency or increase production quality and output by improving the impeder material. Originality/value While simulations of tube welding systems have been done previously, studies on improving impeder materials are rarely carried out. This paper brings to light possible improvements to be made to induction tube welding systems.

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