Effects of a constricted nozzle on the arc phenomena in TIG welding process

Konishi Kyohei; Shigeta Masaya; Tanaka Manabu; Murata Akihisa; Murata Tadasuke

doi:10.2207/qjjws.32.47

Effects of a constricted nozzle on the arc phenomena in TIG welding process

Konishi Kyohei, Shigeta Masaya, Tanaka Manabu, Murata Akihisa, Murata Tadasuke

ENG - Mechanical Systems Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Effects of a constricted nozzle on the arc phenomena in Tungsten Inert Gas (TIG) welding process are investigated by numerical simulation. The obtained results show that the temperature and velocity of the arc plasma are increased by attaching an additional gas nozzle which is called "constricted nozzle". As a result, the iron vapor does not diffused upward but transported outward. In addition, the heat transfer to the base metal surface is enhanced.

Original language	English
Pages (from-to)	47-51
Number of pages	5
Journal	Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society
Volume	32
Issue number	2
DOIs	https://doi.org/10.2207/qjjws.32.47
Publication status	Published - 2014

Keywords

A constricted nozzle
Numerical simulation
The arc phenomena
The arc plasma
TIG welding process

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10.2207/qjjws.32.47

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AU - Kyohei, Konishi

AU - Masaya, Shigeta

AU - Manabu, Tanaka

AU - Akihisa, Murata

AU - Tadasuke, Murata

PY - 2014

Y1 - 2014

N2 - Effects of a constricted nozzle on the arc phenomena in Tungsten Inert Gas (TIG) welding process are investigated by numerical simulation. The obtained results show that the temperature and velocity of the arc plasma are increased by attaching an additional gas nozzle which is called "constricted nozzle". As a result, the iron vapor does not diffused upward but transported outward. In addition, the heat transfer to the base metal surface is enhanced.

AB - Effects of a constricted nozzle on the arc phenomena in Tungsten Inert Gas (TIG) welding process are investigated by numerical simulation. The obtained results show that the temperature and velocity of the arc plasma are increased by attaching an additional gas nozzle which is called "constricted nozzle". As a result, the iron vapor does not diffused upward but transported outward. In addition, the heat transfer to the base metal surface is enhanced.

KW - A constricted nozzle

KW - Numerical simulation

KW - The arc phenomena

KW - The arc plasma

KW - TIG welding process

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Effects of a constricted nozzle on the arc phenomena in TIG welding process

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Keywords

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