Tensile Strength Characteristic of Al6061-T6 and Al7003-T6 Aluminum by the Change in the Friction Welding Process Variable

2014 ◽  
Vol 532 ◽  
pp. 534-539
Author(s):  
Hyun Sik Kim ◽  
Dong Pyo Hong ◽  
Sung Mo Yang ◽  
Hee Yong Kang
Keyword(s):  
Tensile Strength ◽  
Friction Welding ◽  
Welding Process ◽  
Hardness Test ◽  
Process Variable ◽  
Frictional Heat ◽  
Process Time ◽  
Pure Material ◽  
Aluminum Specimen ◽  
Welding Part

Recently, the various welding methods are used in the coupling method of product for the streamlining of complex products, simplification of manufacturing process, and decreasing process time a variety of industries. In this welding area, the friction welding technique has many advantages such as the mass production of rapid and highly reliable product and eases of automation, reduction of process time etc. so the domestic/external many studies are conducting. In this study, the Spindle speed, Up-set pressure as the necessary process variables for friction welding were change variously by using the round bar specimen of Al6061-T6 and Al7003-T6 Aluminum material, so the friction welding performance of the specimen by each change was compared and analyzed. In order to comprehend the friction welding performance, the frictional pressure was fixed with 20MPa, the spindle velocity was changed with 1,000, 1,500, 2,200rpm, and the Up-set pressure was changed with 35, 50, 65MPa for producing, so the performance by the specimen was compared and analyzed through the final tensile strength test. In addition, the effects of the friction welding on the specimen were examined through the analysis on the welding part hardness of the each friction welded aluminum specimen. In the result of the study, it showed the highest welding characteristic with the tensile strength 250.5MPa by applying 1,000rpm spindle velocity, 50MPa Up-set pressure compared to the lowest tensile strength 171.6MPa. In addition, as the result of hardness test, the hardness of specimen after conducting the friction welding of specimen decreased compared to the hardness of the pure material in the welding boundary, so it is judged that the measure to minimize the effects of the frictional heat by minimizing the friction welding time is needed.

Analysis of the Influence of Continuous-Drive Friction Welding on the Microstructure and Mechanical Properties of the UNS C64200 Bronze-Aluminum-Silicon Alloy

2021 ◽  
Vol 412 ◽  
pp. 185-195
Author(s):  
P.S.P. Monteiro ◽  
Givanildo Alves dos Santos ◽  
Francisco Yastami Nakamoto ◽  
Mauricio S. Nascimento ◽  
Rogerio Teram ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Friction Welding ◽  
Base Material ◽  
Welding Process ◽  
Hardness Test ◽  
Temperature Characteristic ◽  
Frictional Heat ◽  
Welding Parameters ◽  
Aluminum Silicon Alloy ◽  
Aluminum Silicon

Friction welding (FRW) is an important commercial solid-state welding process in which coalescence is achieved by frictional heat combined with pressure. The objective of this work is to analyze the microstructure and the mechanical behavior of the copper alloy UNS C64200 – bronze-aluminum-silicon, as well as to raise the ideal welding parameters so that there is adequate weldability after process of continuous-drive friction welding. Regarding the analysis of the microstructure, scanning electron microscopy was used to characterize phases. The mechanical properties were evaluated by means of a hardness test of the center of the welded joint, traversing the entire extent of the thermally affected zone. Results show that the UNS C64200 alloy, when subjected to conventional friction welding, behaves satisfactorily in terms of weldability, without the appearance of cracks or defects arising from the temperature characteristic of this process, as well as good hardness with values above the minimum established in norm and higher than the base material.

scholarly journals Microstructure and Mechanical Properties of Dissimilar Friction Welding Ti-6Al-4V Alloy to Nitinol

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 109
Author(s):  
Ateekh Ur Rehman ◽  
Nagumothu Kishore Babu ◽  
Mahesh Kumar Talari ◽  
Yusuf Siraj Usmani ◽  
Hisham Al-Khalefah
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flow Stress ◽  
Intermetallic Compound ◽  
Ultimate Tensile Strength ◽  
Friction Welding ◽  
Welding Process ◽  
Weld Interface ◽  
Dissimilar Joints ◽  
Dissimilar Alloys

In the present study, a friction welding process was adopted to join dissimilar alloys of Ti-Al-4V to Nitinol. The effect of friction welding on the evolution of welded macro and microstructures and their hardnesses and tensile properties were studied and discussed in detail. The macrostructure of Ti-6Al-4V and Nitinol dissimilar joints revealed flash formation on the Ti-6Al-4V side due to a reduction in flow stress at high temperatures during friction welding. The optical microstructures revealed fine grains near the Ti-6Al-4V interface due to dynamic recrystallization and strain hardening effects. In contrast, the area nearer to the nitinol interface did not show any grain refinement. This study reveals that the formation of an intermetallic compound (Ti2Ni) at the weld interface resulted in poor ultimate tensile strength (UTS) and elongation values. All tensile specimens failed at the weld interface due to the formation of intermetallic compounds.

Effect of Friction Stir Welding Parameters on Thermal and Tensile Behavior of Aluminum Weldments Using Double Shoulder Tools

2012 ◽  
Vol 622-623 ◽  
pp. 323-329
Author(s):  
Ebtisam F. Abdel-Gwad ◽  
A. Shahenda ◽  
S. Soher
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Welding Process ◽  
Tensile Behavior ◽  
Frictional Heat ◽  
Welding Parameters ◽  
Friction Stir ◽  
Aluminum Base ◽  
Tool Pin ◽  
Strength And Ductility

Friction stir welding (FSW) process is a solid state welding process in which the material being welded does not melt or recast. This process uses a non-consumable tool to generate frictional heat in the abutting surfaces. The welding parameters and tool pin profile play major roles in deciding the weld quality. In this investigation, an attempt has been made to understand effects of process parameters include rotation speeds, welding speeds, and pin diameters on al.uminum weldment using double shoulder tools. Thermal and tensile behavior responses were examined. In this direction temperatures distribution across the friction stir aluminum weldment were measured, besides tensile strength and ductility were recorded and evaluated compared with both single shoulder and aluminum base metal.

scholarly journals ANALISA KEKUATAN WELDING REPAIR BAJA AISI 420 DENGAN METODA GMAW

2019 ◽  
Vol 18 (3) ◽  
pp. 297-306
Author(s):  
Cecep Slamet Abadi ◽  
Rosidi Rosidi ◽  
Idrus Assagaf
Keyword(s):  
Tensile Strength ◽  
Tensile Test ◽  
Test Object ◽  
Impact Test ◽  
Welding Process ◽  
Charpy Impact ◽  
Hardness Test ◽  
Test Material ◽  
Aisi 420 ◽  
The Impact

Welding technology is used because besides being easy to use, it can also reduce costs so it is cheaper. Especially for welding repair. From the welding repair the extent to which the strength of GMAW welds can repair components from the molded plastic mold room made of AISI 420 stainless steel. Repair of the print room components using deposit welding is tested using tensile strength and hardness as realization of resistance when holding the rate of liquid plastic entering the print room by 25 to 40 MPa, depending on the plastic viscosity, the precision of the mold and the filling level of the print room. Deposition welding method as a welding repair can affect a procedure to be able to produce a component that is safe and capable of being used in accordance with the provisions. The welding process used is reverse polarity GMAW DC with 125 A current and ER 70 S welding wire diameter 1.2 mm. Test material AISI 420. Tests carried out were tensile test, impact test and hardness test in weld metal, HAZ and base metal. From the Charpy impact test and tensile test obtained the value of welding strength which is close to the strength of the complete object, which is equal to 65%. The energy absorbed by the impact test object with GMAW welding is 5.4 Joule while for the whole test object is 8.1 Joule. The welding tensile strength is 520 MPa compared to the tensile tensile strength of 820 MPa.

Optimizing the Friction Welding Process Parameter to Obtain the Maximum Tensile Strength in AA 2024 Grade High Strength Aluminum Alloy Joints

2016 ◽  
Vol 25 ◽  
pp. 11-19 ◽  
Author(s):  
S.T. Selvamani ◽  
S. Divagar ◽  
M. Vigneshwar
Keyword(s):  
Tensile Strength ◽  
Friction Welding ◽  
Research Work ◽  
Welding Process ◽  
High Strength ◽  
Process Parameter ◽  
Design Matrix ◽  
Engineering Structures ◽  
Maximum Tensile Strength ◽  
Aa 2024

Aluminum alloys are widely used in engineering structures and components where light weight or corrosion resistance were required. Friction welding is classified as a solid-state welding process where metallic bonding is produced at temperatures lower than the melting point of the base metals. Friction time, friction pressure, forging time, forging pressure and rotation speed are the most important parameters in the friction welding process. The Response Surface Methodology (RSM) is used to optimize the process parameter and also useful in developing a proper approximation for the right functional relationship between independent variables and the response variable that may differentiate the nature of the joints. The empirical relationships are developed with the help of ANOVA design matrix to obtain the maximum tensile strength in the joints. The integrity of the joints are evaluated by Optical Microscopy (OM) and Energy Dispersive X-ray Analysis (EDAX) in this research work.

scholarly journals Interlayer Effect on Connection of Mild Steel ST37 and Stainless Steel 201 on Rotary Friction Welding

2021 ◽  
Vol 65 (1) ◽  
pp. 23-30
Author(s):  
Yohanes Yohanes ◽  
◽  
Muhammad Heriansyah ◽  
Keyword(s):  
Stainless Steel ◽  
Mild Steel ◽  
Tensile Test ◽  
Friction Welding ◽  
Solid Phase ◽  
Welding Process ◽  
Hardness Test ◽  
Welding Parameters ◽  
Test Results ◽  
Rotary Friction Welding

Friction welding is a type of solid state welding where the welding process is carried out in a solid phase to combine various types of ferrous and non-ferrous metals that cannot be welded by the fusion welding method but for welding different metals the welding results are less than optimal due to cracks on the surface of the welding results and differences in mechanical properties that cause the welding result to be brittle, therefore an interlayer is used. In this study, observations were made on the process and results of the joint friction welding using dissimilar metal material between mild steel ST37 and stainless steel 201 with copper interlayer. The results of the test will be a tensile test to see the maximum tensile strength and a hardness test to see the hardness value of the interlayer variation of 0.3 mm, 0.5 mm, 1 mm and without an interlayer. The conclusions obtained are: (1) The effect of the addition of an interlayer on the rotary friction welding process includes the friction phase, the forging phase and the results of welding parameters in the form of motor power, motor angular speed, the change in specimen length is greater without using an interlayer compared to using an interlayer while the duration of welding time is greater using an interlayer than without using an interlayer. (2) The maximum tensile test results were obtained at the 1 mm interlayer at 482.43 MPa and the maximum hardness test results obtained at the 1 mm interlayer were 321.34 VHN.

scholarly journals The Study of Male-Female Chamfer Angle Effect on Aluminum 6061 Forging at Rotary Friction Welding Process

2021 ◽  
Vol 65 (2) ◽  
pp. 61-67
Author(s):  
Anugra Fikri Azmi ◽  
◽  
Yohanes Yohanes ◽  
Ridwan Ridwan Abdurrahman ◽  
◽  
...  
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Friction Welding ◽  
Welding Process ◽  
Specimen Length ◽  
Maximum Tensile Strength ◽  
A Value ◽  
Rotary Friction Welding ◽  
Angle Effect ◽  
Aluminum Material

This research aims to investigate male-female chamfer angle effect on forging pressure, specimen length and the maximum tensile strength in splicing 6061 aluminum material, which used the rotary friction welding process. This research employed the analytical method to determine the timing of forging pressure as an initial reference to conduct the experimental study for the specimens test. The specimens were tested by varying the male-female chamfer angle, namely 0°, 15°, 30°, 45°, 60°. The results test were obtained the longest application of forging pressure at the male-female chamfer angle of 60° and the fastest application of forging pressure at the male-female chamfer angle of 15°. The change in length of the specimen during the welding process for each variation of the male-female chamfer angle varies due to the friction time different. The largest change in length was at the male-female chamfer angle of 15° and the smallest change in length at the male-female chamfer angle of 60°. The maximum tensile strength was obtained at the variation of male-female chamfer angle of 60° with a value of 226.47 MPa.

scholarly journals Effect of friction welding conditions on tensile strength and hardness of AISI 310 stainless steel joints

2018 ◽  
Vol 204 ◽  
pp. 06004 ◽  
Author(s):  
Muhammad Iswar ◽  
Rusdi Nur
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Friction Welding ◽  
Rotational Speed ◽  
Welding Process ◽  
Raw Material ◽  
Welding Temperature ◽  
Lathe Machine ◽  
Joint Section ◽  
Steel Joints

This study aims to determine the effect of rotational speed and forging time on tensile strength and hardness through the friction welding process of stainless steel AISI 310. The research was carried out by friction welding process by using the lathe machine with varying rotational speed (550, 1020 and 1800 rpm), forging time (25, 35, 45 seconds), and welding temperature of 1050°C ± 10°. Axial pressure was obtained through the addition of a hydraulic system to the release head of a lathe machine with a forging pressure of 123.8 N/mm2. Furthermore, the friction welding results were tested mechanically by conducting the tensile and hardness tests. The experimental results showed that the highest tensile strength of the friction welding result of 706,61 N/mm2 was obtained at 1800 rpm and 45 seconds, and this value is lower when compared with raw material (780,25 N/mm2). The highest hardness value (61.5 HRC-A) was located on the welded joint section with 550 rpm of rotational speed and 25 seconds of forging time. The hardness of the parent metal is 69.45 HRC-A. The rotational variation influences the hardness value, the higher the rotational speed will increase the hardness. The longer of forging time will decrease the hardness.

Temperature Modeling for Friction Welding Process between Ceramic and Metal

2010 ◽  
Vol 64 ◽  
pp. 115-124
Author(s):  
Hazman Seli ◽  
Ahmad Izani Md. Ismail ◽  
Endri Rachman ◽  
Zainal Arifin Ahmad
Keyword(s):  
Friction Welding ◽  
Welding Process ◽  
Thermal Response ◽  
Frictional Heat ◽  
One Dimensional ◽  
Heating And Cooling ◽  
Temperature Modeling ◽  
Model Of Friction ◽  
Transient Thermal ◽  
Transient Thermal Response

Numerical model of friction welding between ceramic and metal rods are established to predict temperature rises during the initial phase of the process. In this study alumina(ceramic) and mild steel(metal) rods are used and joined with aluminium sacrificial interlayer. The workpieces are welded together by holding alumina still, while rotating the steel attached with aluminium piece under influence of an axial load which creates frictional heat in the interfaces. The transient thermal response in welding is hard to model analytically. Generally, heat is dissipated over time scales of less than two seconds. For the thermal model, an explicit one dimensional (1-D) finite difference (FD) method is utilized to approximate the heating and cooling temperature distribution of the joined dissimilar rods. The preliminary predictions are compared to actual thermocouple data from welds conducted under identical conditions and are shown to be in fair agreement. Even though the FD method proposed in this study cannot replace a more accurate numerical analysis, it does provide guidance in weld parameter development and allows better understanding of the friction welding process.

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