Water cooling keyhole gas tungsten arc welding of HSLA steel

Keyhole gas tungsten arc (K-TIG) welding with water cooling system was used to weld high-strength low-alloy steel of mid-thickness (thickness ranging 6–13 mm). Q345 plates of 8-mm thickness were jointed in a single pass without filler metal. The weld properties, including mechanical properties and m...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2017-09, Vol.92 (5-8), p.2207-2216
Main Authors: Fan, Wenfei, Ao, Sansan, Huang, Yifei, Liu, Weidong, Li, Yang, Feng, Yueqiao, Luo, Zhen, Wu, Ben
Format: Article
Language:English
Subjects:
Alloys
Base metal
CAE) and Design
Casting
Computer simulation
Computer-Aided Engineering (CAD
Cooling
Cooling effects
Cooling systems
Elongation
Engineering
Filler metals
Gas tungsten arc welding
High strength low alloy steels
Industrial and Production Engineering
Liquid cooling
Mechanical Engineering
Mechanical properties
Media Management
Metals
Original Article
Plates
Surface tension
Tensile strength
Thickness
Tungsten steels
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Keyhole gas tungsten arc (K-TIG) welding with water cooling system was used to weld high-strength low-alloy steel of mid-thickness (thickness ranging 6–13 mm). Q345 plates of 8-mm thickness were jointed in a single pass without filler metal. The weld properties, including mechanical properties and microstructure, were analyzed. The maximum tensile strength of the weld was similar with that of the base metal, while the elongation and impact property of the weldment were decreased compared with the base metal. The numerical simulation result revealed that water cooling method used in K-TIG welding is greatly helpful in reducing the volume of the welding pool due to the enhanced cooling effect. Additionally, improved holding power of the welding pool can be obtained due to the increased surface tension.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-017-0234-0