Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium

Kazuo Yokohara; Yasuhiro Okamoto; Akira Okada; Hikotaro Ochiai; Ryosuke Kimura; Shozo Ono; Masayuki Akase

doi:10.1016/j.procir.2016.02.230

Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium

Kazuo Yokohara, Yasuhiro Okamoto, Akira Okada, Hikotaro Ochiai, Ryosuke Kimura, Shozo Ono, Masayuki Akase

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Effective shielding method for a wide area is required in the vertical-position remote laser welding of pure titanium. Therefore, shielding effects of ring-type nozzles with two layers for a wide area were numerically and experimentally investigated in the vertical-position setup of workpiece with argon gas. Prevention of incoming air flow outside a ring-type nozzle is effective to increase mass fraction of argon gas. Mass fraction of argon gas could be increased using a ring-type nozzle, in which shielding gas is supplied by open-side injection ports of proper angle at a proper flow ratio of two jetting layers.

Original language	English
Pages (from-to)	448-453
Number of pages	6
Journal	Procedia CIRP
Volume	42
DOIs	https://doi.org/10.1016/j.procir.2016.02.230
Publication status	Published - 2016
Event	18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016 - Tokyo, Japan Duration: Apr 18 2016 → Apr 22 2016

Keywords

nozzle shape
oxidation
pure titanium
remote welding
ring-type nozzle
shielding gas
vertical-position

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering

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title = "Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium",

abstract = "Effective shielding method for a wide area is required in the vertical-position remote laser welding of pure titanium. Therefore, shielding effects of ring-type nozzles with two layers for a wide area were numerically and experimentally investigated in the vertical-position setup of workpiece with argon gas. Prevention of incoming air flow outside a ring-type nozzle is effective to increase mass fraction of argon gas. Mass fraction of argon gas could be increased using a ring-type nozzle, in which shielding gas is supplied by open-side injection ports of proper angle at a proper flow ratio of two jetting layers.",

keywords = "nozzle shape, oxidation, pure titanium, remote welding, ring-type nozzle, shielding gas, vertical-position",

author = "Kazuo Yokohara and Yasuhiro Okamoto and Akira Okada and Hikotaro Ochiai and Ryosuke Kimura and Shozo Ono and Masayuki Akase",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016 ; Conference date: 18-04-2016 Through 22-04-2016",

year = "2016",

doi = "10.1016/j.procir.2016.02.230",

language = "English",

volume = "42",

pages = "448--453",

journal = "Procedia CIRP",

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publisher = "Elsevier BV",

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T1 - Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium

AU - Yokohara, Kazuo

AU - Okamoto, Yasuhiro

AU - Okada, Akira

AU - Ochiai, Hikotaro

AU - Kimura, Ryosuke

AU - Ono, Shozo

AU - Akase, Masayuki

PY - 2016

Y1 - 2016

N2 - Effective shielding method for a wide area is required in the vertical-position remote laser welding of pure titanium. Therefore, shielding effects of ring-type nozzles with two layers for a wide area were numerically and experimentally investigated in the vertical-position setup of workpiece with argon gas. Prevention of incoming air flow outside a ring-type nozzle is effective to increase mass fraction of argon gas. Mass fraction of argon gas could be increased using a ring-type nozzle, in which shielding gas is supplied by open-side injection ports of proper angle at a proper flow ratio of two jetting layers.

AB - Effective shielding method for a wide area is required in the vertical-position remote laser welding of pure titanium. Therefore, shielding effects of ring-type nozzles with two layers for a wide area were numerically and experimentally investigated in the vertical-position setup of workpiece with argon gas. Prevention of incoming air flow outside a ring-type nozzle is effective to increase mass fraction of argon gas. Mass fraction of argon gas could be increased using a ring-type nozzle, in which shielding gas is supplied by open-side injection ports of proper angle at a proper flow ratio of two jetting layers.

KW - nozzle shape

KW - oxidation

KW - pure titanium

KW - remote welding

KW - ring-type nozzle

KW - shielding gas

KW - vertical-position

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U2 - 10.1016/j.procir.2016.02.230

DO - 10.1016/j.procir.2016.02.230

M3 - Conference article

AN - SCOPUS:84966667396

VL - 42

SP - 448

EP - 453

JO - Procedia CIRP

JF - Procedia CIRP

SN - 2212-8271

T2 - 18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016

Y2 - 18 April 2016 through 22 April 2016

ER -

Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium

Abstract

Keywords

ASJC Scopus subject areas

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