scholarly journals The Use of Compressed Air for Micro-Jet Cooling After MIG Welding

2016 ◽  
Vol 61 (3) ◽  
pp. 1405-1408
Author(s):  
D. Hadryś ◽  
T. Węgrzyn ◽  
J. Piwnik ◽  
Z. Stanik ◽  
W. Tarasiuk
Keyword(s):  
Weld Metal ◽  
Acicular Ferrite ◽  
Compressed Air ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Mig Welding ◽  
Jet Cooling ◽  
Metal Deposit ◽  
Steel Weld Metal ◽  
First Time

AbstractThe material selected for this investigation was low alloy steel weld metal deposit (WMD) after MIG welding with micro-jet cooling. The present investigation was aimed as the following tasks: obtained WMD with various amount of acicular ferrite and further analyze impact toughness of WMD in terms of acicular ferrite amount in it. Weld metal deposit (WMD) was first time carried out for MIG welding with micro-jet cooling of compressed air and gas mixture of argon and air. Until that moment only argon, helium and nitrogen were tested as micro-jet gases for MIG/MAG processes. An important role in the interpretation of the results can give methods of artificial intelligence.

scholarly journals Micro-jet Cooling by Compressed Air after MAG Welding

2016 ◽  
Vol 16 (2) ◽  
pp. 111-114
Author(s):  
T. Węgrzyn ◽  
J. Piwnik ◽  
W. Tarasiuk ◽  
Z. Stanik ◽  
M. Gabrylewski
Keyword(s):  
Weld Metal ◽  
Compressed Air ◽  
Mag Welding ◽  
Gas Mixture ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Jet Cooling ◽  
Metal Deposit ◽  
Steel Weld Metal ◽  
First Time

Abstract The material selected for this investigation was low alloy steel weld metal deposit (WMD) after MAG welding with micro-jet cooling. The present investigation was aimed as the following tasks: analyze impact toughness of WMD in terms of micro-jet cooling parameters. Weld metal deposit (WMD) was first time carried out for MAG welding with micro-jet cooling of compressed air and gas mixture of argon and air. Until that moment only argon, helium and nitrogen and its gas mixture were tested for micro-jet cooling.

scholarly journals Steel Weld Metal Deposit Measured Properties after Immediate Micro-Jet Cooling

Metals ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 339 ◽  
Author(s):  
Bożena Szczucka-Lasota ◽  
Bożena Gajdzik ◽  
Tomasz Węgrzyn ◽  
Łukasz Wszołek
Keyword(s):  
Weld Metal ◽  
Steel Weld ◽  
Jet Cooling ◽  
Metal Deposit ◽  
Steel Weld Metal

Steel Welding with Micro-Jet Injector

2014 ◽  
Vol 1036 ◽  
pp. 440-445
Author(s):  
Tomasz Węgrzyn ◽  
Jan Piwnik ◽  
Izabela Horzela ◽  
Wojciech Majewski
Keyword(s):  
Impact Toughness ◽  
Mild Steel ◽  
Weld Metal ◽  
Acicular Ferrite ◽  
Mig Welding ◽  
Jet Cooling ◽  
Welding Technology ◽  
Metal Deposit ◽  
Mild Steel Welding ◽  
Very High

The article focuses on mild steel welding and covers the new possibilities of that method. Since 2011 innovate welding technology based on micro-jet cooling just after welding is being checked. Weld metal deposit (WMD) was carried out for standard MIG welding and for new welding method with micro-jet cooling. A very high percentage of acicular ferrite (AF) in WMD was gettable (55-75%) for low alloy welding with micro-jet cooling injector. This beneficial structure (very high amount of AF) is unusual to observe in WMD in other welding methods. This method is very promising mainly due to the significant improvement of weld quality and reduces costs. Furthermore impact toughness and strengths of WMD were carried out. The present paper aims at outlining same of the recent innovations in MIG welding which represent steps ahead to achieve the objectives outlined above.

scholarly journals The coexistence of acicular ferrite and bainite in an alloy-steel weld metal

1992 ◽  
Vol 11 (22) ◽  
pp. 1547-1548 ◽  
Author(s):  
J. R. Yang ◽  
C. C. Yang ◽  
C. Y. Huang
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Steel Weld Metal

scholarly journals Mechanical Properties of Plug Welds after Micro-Jet Cooling

2016 ◽  
Vol 61 (4) ◽  
pp. 1771-1776 ◽  
Author(s):  
D. Hadryś
Keyword(s):  
Mechanical Properties ◽  
Weld Metal ◽  
Weld Joint ◽  
Welded Joint ◽  
New Technology ◽  
Mig Welding ◽  
Jet Streams ◽  
Welding Method ◽  
Jet Cooling ◽  
Metal Deposit

Abstract New technology of micro-jet welding could be regarded as a new way to improve mechanical properties of plug welds. The main purpose of that paper was analyzing of mechanical properties of plug welds made by MIG welding method with micro-jet cooling. The main way for it was comparison of plug welds made by MIG welding method with micro-jet cooling and plug welds made by ordinary MIG welding method. It is interesting for steel because higher amount of acicular ferrite (AF) in weld metal deposit (WMD) is obtained in MIG welding method with micro-jet cooling in relation to ordinary MIG welding method. This article presents the influence of the cooling medium and the number of micro-jet streams on mechanical properties of the welded joint. Mechanical properties were described by force which is necessary to destroy weld joint.

scholarly journals Impact Toughness of Steel WMD After TIG Welding

2017 ◽  
Vol 62 (3) ◽  
pp. 1647-1650
Author(s):  
T. Węgrzyn ◽  
J. Piwnik ◽  
Z. Stanik ◽  
D. Węgrzyn ◽  
D. Sieteski
Keyword(s):  
Artificial Intelligence ◽  
Impact Toughness ◽  
Weld Metal ◽  
Alloy Steel ◽  
Gas Mixtures ◽  
Tig Welding ◽  
Low Alloy Steel ◽  
Jet Cooling ◽  
Metal Deposit ◽  
Alloy Weld

AbstractThe material selected for this investigation was low alloy weld metal deposit after TIG welding with various amount of oxygen in weld metal deposit (WMD). After TIG process it is difficult to get proper amount of oxygen in WMD on the level much lower than 350 ppm. The highest impact toughness of low alloy WMD corresponds with the amount of oxygen in WMD above 350 ppm. In the paper focuses on low alloy steel after innovate welding method with micro-jet cooling that could be treated as a chance on rising amount of oxygen in weld. Weld metal deposit (WMD) was carried out for TIG welding with micro-jet cooling with various amount of oxygen in WMD. In that paper various gas mixtures (gas mixtures Ar-O2and Ar-CO2) were tested for micro-jet cooling after TIG welding. An important role in the interpretation of the results can give methods of artificial intelligence.

The coexistence of acicular ferrite and bainite in an alloy-steel weld metal

1992 ◽  
Vol 11 (16) ◽  
pp. 1145-1146 ◽  
Author(s):  
J. R. Yang ◽  
C. C. Yang ◽  
C. Y. Huang
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Steel Weld ◽  
Steel Weld Metal
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