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: Chapter in Book/Report/Conference proceeding › Conference contribution

4 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
Title of host publication	Procedia CIRP
Publisher	Elsevier
Pages	448-453
Number of pages	6
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

Other

Other	18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016
Country	Japan
City	Tokyo
Period	4/18/16 → 4/22/16

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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

Cite this

Yokohara, K., Okamoto, Y., Okada, A., Ochiai, H., Kimura, R., Ono, S., & Akase, M. (2016). Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium. In Procedia CIRP (Vol. 42, pp. 448-453). Elsevier. https://doi.org/10.1016/j.procir.2016.02.230

Yokohara, K, Okamoto, Y , Okada, A, Ochiai, H, Kimura, R, Ono, S & Akase, M 2016, Investigation of Shielding Gas Supplying Method in Vertical-position Laser Welding of Pure Titanium. in Procedia CIRP. vol. 42, Elsevier, pp. 448-453, 18th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2016, Tokyo, Japan, 4/18/16. https://doi.org/10.1016/j.procir.2016.02.230

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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",

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

language = "English",

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AU - Yokohara, Kazuo

AU - Okamoto, Yasuhiro

AU - Okada, Akira

AU - Ochiai, Hikotaro

AU - Kimura, Ryosuke

AU - Ono, Shozo

AU - Akase, Masayuki

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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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M3 - Conference contribution

AN - SCOPUS:84966667396

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BT - Procedia CIRP

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Access to Document

10.1016/j.procir.2016.02.230