scholarly journals The Effect on Using Different Types of Electrodes toward the Tensile Strength of the Welding Joints Groove V Low Carbon Steel Type DIN 1.0038

Teknomekanik ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 43-49
Author(s):  
Yogi Fernando ◽  
Rodesri Mulyadi ◽  
Ambiyar Ambiyar
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Steel Type ◽  
Different Types ◽  
Welding Joints ◽  
The One ◽  
Plate Type

The choice of electrode type in welding will affect the strength of the welding result. The aim of this study was to determine the effect on using different type of electrode on the tensile strength of low carbon steel type 1.0038 by using experimental method. The welding was conducted using Groove V. In addition, the specimens used in this research were the low carbon steel plate type 1.0038 with a thickness of 8 mm and were given SMAW treatment using 2 different types of electrodes, namely E 6013 and E 7016 whose diameters were 2.6 and 3.2 mm. The standard specimen used was ASTM-E8 and being tested using a Universal Testing Machine. Based on the research that had been conducted, it was obtained that the steel type 1.0038 welded using E 7016 electrodes had a higher tensile strength than the one using E 6013.

scholarly journals The Effect of Current Strength Towards ABREX Steel 400 Pulling Strength by Using SMAW Welding with Electrode E7018

Teknomekanik ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 36-42
Author(s):  
Muhammad Rizki ◽  
Nelvi Erizon ◽  
Budi Syahri ◽  
Rodger Eliab Jr
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Welding Current ◽  
Current Strength ◽  
Low Carbon ◽  
Test Device ◽  
Metal Welding ◽  
A Current

The aim of this study is to determine the effect of variations in welding current strength on the tensile strength of ABREX 400 steel weld joints. The results of this study are expected to give contribution toward the world of metal welding, especially low carbon steel metal welding which will later be beneficial for the development of the metal industry and technology. The method used in this research was the experimental method. In addition, the process of welding the material used SMAW welding and the type of seam V connection and the variations in the current strength used are 90 A, 100 A, and 110 A. The specimen used was a TRS 400 low carbon steel plate with a thickness of 10 mm and the electrode used was the E7018 electrode Ø 3.2 mm. The standard specimen used was ASTM-8 and the test was carried out using the Universal Testing Machine tensile test device. As a result, the research showed that the tensile strength at a current of 90 A was 588.91 N / mm2, a current of 100 A was 570.56 N / mm2, and a current of 100 A was 545.17 N / mm2. Based on the results of the research, it can be concluded that welding using a current strength of 90 A produces the highest tensile strength value, namely 588.91 N / mm2 compared to currents of 100 A and 110 A.

scholarly journals Analisis Sifat Fisik dan Mekanik Sambungan Las Oxy-Acetylene pada Pelat Baja Karbon Rendah dengan Variabel Nyala Torch Karburasi

2017 ◽  
Vol 1 (2) ◽  
pp. 1
Author(s):  
Andika Wisnujati ◽  
Ahmad Nurhuda
Keyword(s):  
Carbon Steel ◽  
Steel Plate ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Maximum Temperature ◽  
Low Carbon ◽  
Butt Weld ◽  
Universal Testing ◽  
Different Dimensions ◽  
Welding Joints

<p>Oxy-acetylene welding is widely used in small workshops for car body repair, automobile and motorcycle exhaust, and other improvements using a maximum temperature of 3000oC that can not be done through another process. The purpose of this study was to analyze the effect of torque oxyacetylene flame carburizing on the physical-mechanical properties of low carbon steel plate welding joints. The method employed by using a low carbon steel plate 2 (two) pairs in a butt weld immension of 300 mm x 75 mm x 1 mm. After welding with oxy-acetylene in torch carburizing flame, the specimens were examined through physical observation including microstructure and echanical properties. Micro hardness vickers (VHN) was used to evaluate the harness and tensile properties was determine using the universal testing machine. In the microstructure testing, there is a pearlite and ferrite whose become different dimensions as it is affected by the heat and air pressure of the weld. The result of tensile strength specimen A 174,6 N/mm2 and specimen B 157,65 N/mm2. While the vickers test obtained the highest hardness that is 152.5 VHN in the welding area<em>.</em></p>

Estimation of Some Mechanical Properties for Similar & Dissimilar Welded Joints

2014 ◽  
Vol 2 (1) ◽  
pp. 59-76
Author(s):  
Abdullah Daie'e Assi
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Austenitic Stainless Steel ◽  
Base Metal ◽  
Welded Joints ◽  
Plate Thickness ◽  
Low Carbon Steel ◽  
Dissimilar Metals ◽  
Low Carbon ◽  
Steel Type

This research deals with the choice of the suitable filler metal to weld the similar and dissimilar metals (Low carbon steel type A516 & Austenitic stainless steel type 316L) under constant conditions such as, plate thickness (6 mm), voltage (78 v), current (120 A), straight polarity. This research deals with three major parts. The first parts Four types of electrodes were used for welding of dissimilar metals (C.St A516 And St.St 316L) two from mild steel (E7018, E6013) and other two from austenitic stainless steel (E309L, E308L) various inspection were carried out include (Visual T., X-ray T., δ- Ferrite phase T., and Microstructures T.) and mechanical testing include (tensile T., bending T. and micro hardness T.) The second parts done by used the same parameters to welding similar metals from (C.St A516) Or (St.St 316L). The third parts deals with welding of dissimilar weldments (C.St And St.St) by two processes, gas tungsten are welding (GTAW) and shielded metal are welding (SMAW).        The results indicated that the spread of carbon from low carbon steel to the welding zone in the case of welding stainless steel elect pole (E309L) led to Configuration Carbides and then high hardness the link to high values ​​compared with the base metal. In most similar weldments showed hardness of the welding area is  higher than the hardness of the base metal. The electrode (E309L) is the most suitable to welding dissimilar metals from (C.St A516 With St.St 316L). The results also showed that the method of welding (GTAW) were better than the method of welding (SMAW) in dissimilar welded joints (St.St 316L with C.St A516) in terms of irregular shape and integrity of the welding defects, as well as characterized this weldments the high-lift and resistance ductility good when using the welding conditions are similar.

scholarly journals The Effect of AC (alternating current) and DC (direct current) on Bend Testing Results of Low Carbon Steel Welding Joints

Teknomekanik ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 56-61
Author(s):  
Zetri Firmanda ◽  
Abdul Aziz ◽  
Bulkia Rahim
Keyword(s):  
Carbon Steel ◽  
Direct Current ◽  
Low Carbon Steel ◽  
Welding Process ◽  
Alternating Current ◽  
Bend Test ◽  
Open Crack ◽  
Low Carbon ◽  
Bend Testing ◽  
Welding Joints

The purpose of this study was to determine the effect of alternating current (AC) and direct current (DC) on the bend testing results of low carbon steel welding joints. The results of this study are expected to determine the cracks that occur from the root bend and face bend testings in the AC and DC welding process. This study used experimental method, where the research was done by giving AC and direct polarity DC (DC-) SMAW welding treatments. The material used in this research was low carbon steel plate DIN 17100 Grade ST 44, thickness 10 with E7016 electrode type. The process of welding joints used a single V seam, strong current of 90A, and the welding position of 1G. The testing of welding joints was carried out by bend testing using the standard acceptance of AWS D1.1 root bend and face bend testing results. The results of the bend testing showed that the AC welding root bend test specimen held no cracks while the DC welding root bend test held cracks with incompelete penetration and open crack defects. On the contrary, the AC welding face bend test had open crack defects and in the DC welding face bend test was found a crack. Thus, there was a difference in the crack resistance of the welding joint from the types of current used through the root bend test and face bend test. Therefore, it can be summarized that AC welding is better for root welding and DC welding is good for capping welding.

Effect of Shielding Gas Mixture on Gas Metal Arc Welding (GMAW) of Low Carbon Steel (LR Grade A)

2016 ◽  
Vol 705 ◽  
pp. 250-254 ◽  
Author(s):  
Yustiasih Purwaningrum ◽  
Triyono ◽  
M. Wirawan Pu ◽  
Fandi Alfarizi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Carbon Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Shielding Gas ◽  
Weld Metals ◽  
Metal Arc Welding

The aimed of this research is to determine the feasibility and effect of the mixture of the shielding gas in the physical and mechanical properties. Low carbon steel LR grade A in a thickness 12 mm were joined in butt joint types using GMAW (Gas Metal Arc Welding) with groove’s gap 5 mm and groove angle’s 400 with variation of shielding gas composition. The composition of shielding gas that used were 100% Ar, 100 % CO2 and 50% Ar + 50 % CO2. The measured of mechanical properties with regard to strength, hardness and toughness using, tensile test, bending test, Vickers hardness Test, and Charpy impact test respectively. The physical properties examined with optical microscope. Results show that tensile strength of welding metals are higher than raw materials. Welds metal with mixing Ar + CO shielding gas has the highest tensile strength. Hardness of weld metals with the shielding gas 100% Ar, 100 % CO2 and 50% Ar + 50 % CO2 are 244.9; 209.4; and 209.4 VHN respectively. The temperature of Charpy test was varied to find the transition temperature of the materials. The temperature that used were –60°C, -40°C, -20°C, 0°C, 20°C , and room temperature. Weld metals with various shielding gas have similar trends of toughness flux that was corellated with the microstructure of weld .

The Electrical Contact Resistance in Resistance Welding Evaluated by Gleeble Testing Machine

2008 ◽  
Vol 575-578 ◽  
pp. 753-756 ◽  
Author(s):  
Wei Min Zhou
Keyword(s):  
Carbon Steel ◽  
Contact Resistance ◽  
Electrical Contact ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Resistance Welding ◽  
Measuring System ◽  
Low Carbon ◽  
Electrical Contact Resistance ◽  
Gleeble 3500

Electrical contact resistance is an important parameter in resistance welding. In this article, a Gleeble 3500 thermal-mechanical testing machine was employed to measure the contact resistance. The machine is equipped with a special electrical resistance measuring system. The contact resistance is experimentally investigated for welding low carbon steel to themselves. A detailed work was carried out to investigate the influence of pressure, temperature on the contact resistance of low carbon steel. The experimental results show that the contact resistance decreases when pressure or temperature increases.

Detection of localised flaws in small-diameter carbon steel tubes using multi-NDE techniques

2020 ◽  
Vol 62 (11) ◽  
pp. 649-655
Author(s):  
W Sharatchandra Singh ◽  
C K Mukhopadhyay
Keyword(s):  
Carbon Steel ◽  
Spatial Resolution ◽  
Small Diameter ◽  
Low Carbon Steel ◽  
Inspection System ◽  
Outer Diameter ◽  
Low Carbon ◽  
Steel Tubes ◽  
Different Types ◽  
Flux Leakage

This paper proposes multi-NDE techniques for enhanced and reliable detection of localised defects or flaws in small-diameter (19.05 mm outer diameter (OD) and 2.77 mm wall thickness (WT)) low-carbon steel tubes. Multi-NDE techniques comprising magnetic flux leakage (MFL), remote field eddy current (RFEC) and the ultrasonic internal rotary inspection system (IRIS) are used to investigate the detectability and spatial resolution for the detection of localised flaws of different types and sizes, which simulate flaws generally formed in carbon steel tubes. The studies reveal that the MFL and IRIS techniques detect 0.55 mm-deep holes and notches while the RFEC technique detects 1.11 mm-deep holes and 0.55 mm-deep notches. The IRIS technique is capable of resolving axial and circumferential holes (1 mm diameter and 1.39 mm depth) of 2 mm hole-to-hole separation, while the MFL technique can resolve axial holes of 2 mm hole-to-hole separation but not circumferential holes. The RFEC technique can detect axial holes as a single hole but is unable to detect circumferential holes, resulting in no spatial resolution for the axial and circumferential holes. Compared to the MFL and RFEC signals, IRIS readily discerns the spatial extent of the flaws with the possibility of sizing from the images. The study also reveals that the resolution capability of the IRIS technique is influenced by the speed of the turbine rotation inside the tube.

J0470105 Effect of friction welding condition on tensile strength of friction welded joint between Ti-6Al-4V and low carbon steel

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0470105--_J0470105-
Author(s):  
Masaaki KIMURA ◽  
Tsukasa IIJIMA ◽  
Masahiro KUSAKA ◽  
Koichi KAIZU ◽  
Akiyoshi FUJI ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Steel ◽  
Friction Welding ◽  
Welded Joint ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Welding Condition

Effect of the Bluing Solution on Corrosion Resistance of the Oxide Film Prepared in Steel

2017 ◽  
Vol 893 ◽  
pp. 345-349
Author(s):  
Hui Li ◽  
Jin Hu Sun ◽  
Qing Dong Zhong ◽  
Zhe Rui Huang ◽  
Yu Lin Li
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Oxide Film ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Electrochemical Test ◽  
Different Types

The process of Quench-bluing treatment on low-carbon steel were introduced. The continuity and corrosion resistance of the blue oxide film that is treated by different types of bluing solution and bluing solution with different concentrations of NaOH were evaluated by drip experiment and electrochemical test .The results show that Quench-bluing process can make the corrosion resistance better when use the solution of 500g/L NaOH and 150g/LNaNO2 as Quench liquid and 15% NaOH in the solution can form the blue oxide film with the best corrosion resistance.

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