scholarly journals Hardness and Thermal Analysis in Welded Butt Joint of Hybrid Aluminium (LM25) Metal Matrix Nano Composite Cylindrical Rod using TIG Welding Process

2018 ◽  
Vol 11 (SI) ◽  
Keyword(s):  
Thermal Analysis ◽  
Metal Matrix ◽  
Welding Process ◽  
Butt Joint ◽  
Tig Welding ◽  
Nano Composite

scholarly journals Effect of Welding Current on Weldments Properties in MIG and TIG Welding

2018 ◽  
Vol 7 (4.37) ◽  
pp. 192
Author(s):  
Aysha Sh. Hasan ◽  
Obed M. Ali ◽  
Adnan M. Alsaffawi
Keyword(s):  
Welding Process ◽  
Welding Current ◽  
Electrical Current ◽  
Butt Joint ◽  
Medium Carbon Steel ◽  
Tig Welding ◽  
Mig Welding ◽  
Lap Joint ◽  
Noticeable Effect ◽  
Medium Carbon

Welding is an important process commonly used to join the different materials together. There are many methods for welding process;therefore, the specifications of weldments will depend on the type of welding process. In this study, investigation of the effect of electrical current on the weldment mechanical propertieswas conducted. Medium carbon steel & stainless steel were welded using two types of joints (single Lap joint and single v-groove Butt joint). The results showedthat the temperature increased with increasing the electrical current. A significant effect of electrical current on the ultimate tensile strength of the weldments is obtaineddepending on the joint type rather than welding type.Furthermore, there was a noticeable effect for the joining method on the heat generated.The heat generated increases with increasing the electrical current for all weldments (lap & butt) joint in both TIG & MIG welding process. However,the amount of heat generated was for TIG welding process specimens higher than from MIG welding process specimens for Butt and Lap type joints. 

scholarly journals Effect of Magnetic Field Induce Arc in Autogenous TIG Welding of 304 Stainless Steel Butt Joint

2021 ◽  
Vol 4 (1) ◽  
pp. 27-35
Author(s):  
Haikal Haikal ◽  
Moch. Chamim ◽  
Deni Andriyansyah ◽  
Emanuel Budi Raharjo ◽  
Ario Sunar Baskoro ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Tensile Strength ◽  
External Magnetic Field ◽  
Weld Line ◽  
Welding Process ◽  
Butt Joint ◽  
Tig Welding ◽  
304 Stainless Steel ◽  
Bead Width ◽  
Welding Arc

This paper reports the use of External Magnetic Field-Tungsten Inert Gas (EMF-TIG) method in butt joint applications to determine the effect of welding arc compression on the quality of butt joint of SS 304 thin plate was reported. The welding process was performed without using filler or autogenous welds. The external magnetic field was generated by placing a magnetic solenoid around the TIG welding torch. The results of this study showed that EMF-TIG welding can produce a more uniform bead width along the weld line compare with conventional TIG. Moreover, the D/W ratio obtained under external magnetic field was higher than without magnetic. However, the tensile strength of butt joint decreased with EMF-TIG because there is constriction in arc welding which produces shrinkage weld pool volume. In addition, high welding speeds result in a decrease in the tensile strength of both conventional TIG and EMF-TIG welds.

A Study of the Performance of Dissimilar A-TIG Welds

2012 ◽  
Vol 530 ◽  
pp. 74-79 ◽  
Author(s):  
Hsien Kuo Cheng ◽  
Long Tsai Yao ◽  
Pin Chou Chang
Keyword(s):  
Stainless Steel ◽  
Mild Steel ◽  
316L Stainless Steel ◽  
Welding Process ◽  
Butt Joint ◽  
Tig Welding ◽  
Angular Distortion ◽  
Activating Flux ◽  
Dissimilar Welds ◽  
A Tig Welding

The performance of dissimilar activated tungsten inert gas (A-TIG) welding on the welds morphology, angular distortion, and mechanical properties in dissimilar metal plates were investigated. Autogenous TIG welding process was applied to the JIS G3131 mild steel and type 316L stainless steel through a thin layer of activating flux to produce a butt-joint weld. CaO, SiO2, Fe2O3, and Cr2O3 fluxes were used as the activating fluxes. The experimental results indicated that the SiO2, Fe2O3, and Cr2O3 fluxes can increase joint penetration in both of the 316L stainless steel and the JIS G3131 mild steel. The CaO flux only can increase the joint penetration of the mild steel. The reversed Marangoni convection are considered to the main factors for increasing penetration of A-TIG on dissimilar welds in this study. Furthermore, TIG welding with SiO2 powder can significantly reduce the angular distortion and increase the tensile strength of the dissimilar weldment.

Thermal analysis of hybrid aluminium metal matrix composites

2021 ◽  
Author(s):  
M. Sangeetha ◽  
Nivin Joy ◽  
G. Sriram Adhisheshan ◽  
J. Arul Kennady ◽  
S. Kamalinee ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Aluminium Metal

FEASIBILITY STUDY ON JOINING DISSIMILAR ALUMINUM ALLOYS AA6061 AND AA7075 BY TUNGSTEN INERT GAS (TIG)

2015 ◽  
Vol 75 (7) ◽  
Author(s):  
Mahadzir Ishak ◽  
Nur Fakhriah Mohd Noordin ◽  
Luqman Hakim Ahmad Shah
Keyword(s):  
Aluminum Alloys ◽  
Butt Joint ◽  
Tig Welding ◽  
Inert Gas ◽  
Depth Of Penetration ◽  
Visual Appearance ◽  
Melted Zone ◽  
Dissimilar Aluminum Alloys ◽  
Aa 7075 ◽  
Filler Metals

The aim of this paper is to study the feasibility of welding dissimilar aluminum alloys AA6061 and AA7075 using different types of filler metals which are ER4043 and ER5356. The tungsten inert gas (TIG) welding method was used to butt joint these alloys. The effect of ER4043 (Si-rich) and ER5356 (Mg-rich) on weldability of the joint were studied through visual appearance, microstructures and hardness. It was found that, welding using filler ER5356 produced deeper penetration compared to filler ER4043. The depth of penetration obtained using filler ER5356 was 1.74 mm, while only 0.9 mm of penetration was obtained using ER4043. Microstructures at different zones of dissimilar TIG joints such as the fusion zone (FZ), the partially melted zone (PMZ) and the heat affected zone (HAZ) were identified. The grain size at FZ from filler ER5356 samples was finer compared to filler ER4043 which was 11.4 µm and 19.5 µm, respectively. The average hardness welding value of filler ER5356 samples was higher compared to filler ER4043 samples, which were 100HV and 86HV, respectively at HAZ of AA 6061, 110HV and 88HV, respectively at FZ, while 113HV and 85HV, respectively at HAZ of AA 7075. It can be concluded that TIG welding using the ER5356 filler yields better joint compared to ER4043.

Sign in / Sign up

Export Citation Format

Share Document