scholarly journals Analisis Pengaruh Variasi Beban Terhadap Kekuatan Tarik Hasil Friction Welding pada Baja Karbon Sedang

2021 ◽  
Vol 5 (1) ◽  
pp. 9
Author(s):  
Hasbi Assiddiq S
Keyword(s):  
Solid State ◽  
Friction Welding ◽  
Rotational Speed ◽  
Friction Pressure

Proses penyambungan logam dengan metode pengelasan gesek (friction welding) dimana logamnya tanpa melalui pencairan (solid state proces) yaitu proses pengelasan terjadi akibat adanya gesekan antara permukaan logam yang akan disambungkan dengan ketentuan ada minimal salah satu logam yang berputar. Gesekan yang terjadi akan menghasilkan panas yang dapat melumerkan kedua ujung logam hingga akhirnya akan menyatu. Adapun parameter penting dalam proses pengelasan gesek meliputi friction time, rotational speed, friction pressure, dan proses pengereman. Tujuan dari penelitian ini adalah; mengetahui pengaruh variasi beban terhadap kekuatan tarik hasil pengelasan gesek menggunakan baja karbon sedang, dan mengetahui perubahan kekuatan tarik baja karbon sedang hasil pengelasan gesek. Hasil pengujian dan perhitungan memperlihatkan bahwa semakin besar beban yang diberikan pada saat proses las gesek maka semakin besar pula tegangan tarik bahan (baja karbon rendah) dimana perbandingan yang terjadi adalah berbanding lurus seperti yang diperlihatkan dari hasil perhitungan. Tegangan tarik terendah diperoleh pada saat beban 4 kg yaitu 7,67 kN/mm2 sedangkan tegangan tarik terbesar diperoleh pada beban 8 kg yaitu 10,46 kN/mm2 dengan modulus elastisitas 48,29 Pa.

scholarly journals Tensile strength Characteristics on Dissimilar Metal Friction Welding of Ti-6Al-4V & SS304L

2020 ◽  
Vol 12 (1) ◽  
pp. 157-166
Author(s):  
R. RAMESH KUMAR ◽  
J. M. BABU
Keyword(s):  
Stainless Steel ◽  
Friction Welding ◽  
Rotational Speed ◽  
Welding Process ◽  
Tensile Load ◽  
Spray Coating ◽  
High Rotational Speed ◽  
Friction Pressure ◽  
Coating Method ◽  
Experimental Project

In this research, the method of friction welding joints in Titanium and Stainless Steel with aluminium interlayer coating is created. The friction welding process is a solid-state joining process of dissimilar or similar materials. This friction welding process needs high rotational speed and high forging pressure. Titanium and stainless steel materials melting temperatures are around 1600OC. Welding process which needed high-pressure, temperature and good velocity regions. Titanium and stainless steels are coated 300OC ranges to applied aluminium spray coating method with constant pressure. The source of the aluminium coating is strong titanium and stainless steel adhesive strength. In this experimental project, four different trials of titanium and stainless steel joints have been performed at different speeds and constant forging pressures. Trial 4 connections of titanium and stainless steel made of 2100OC temperature and forging pressure of 60 MPa, friction time of 5 sec and friction pressure of 70 MPa. Friction welding experiments were completed with the help of friction time, forging pressure, rotational speed and friction pressure. Tensile load stress results are calculated by the UTM machine and evaluated the results of design experts with ANOVA table and RSM.

scholarly journals Exploration of Rotary Friction Welding Technique

2021 ◽  
Vol 71 (2) ◽  
pp. 53-60
Author(s):  
Chatha Jagjeet Singh ◽  
Kohli Prabhsharan Singh ◽  
Handa Amit
Keyword(s):  
Solid State ◽  
Welded Joints ◽  
Friction Welding ◽  
Welding Parameters ◽  
Welding Method ◽  
Rotary Friction Welding ◽  
Friction Pressure ◽  
Welding System ◽  
Welding Technique

Abstract Friction welding is a solid-state welding system which welds materials without authentic melting it. This study explores papers of different researchers on the friction welding method and it has been observed that the welding parameters like friction time; friction pressure, forge time and forge pressure highly affect properties of welded joints. The reason for this investigation is to exhort industry and the insightful world regarding advantages of revolving friction welding so the technique may be utilized in an ideal manner.

Influence of Rotary Friction Welding Parameters on Tensile Strength and Length of TMAZ of Dissimilar Welded Joints from 32G2 and 40KhN Steels

2021 ◽  
Vol 410 ◽  
pp. 299-305
Author(s):  
Artem S. Atamashkin ◽  
Elena Y. Priymak ◽  
Elena A. Kuzmina
Keyword(s):  
Tensile Strength ◽  
Base Metal ◽  
Process Parameters ◽  
Welded Joints ◽  
Friction Welding ◽  
Tensile Tests ◽  
Welding Parameters ◽  
Rotary Friction Welding ◽  
Study Results ◽  
Friction Pressure

In this work, pipe billets with a diameter of 73 mm and a wall thickness of 9 mm from steels 32G2 and 40KhN are friction welded with an aim to optimize the process parameters. The friction pressure, the forging pressure and the length of the fusion varied. After the implementation of various welding modes, tensile tests and metallographic studies were carried out. The optimal welding parameters have been established, which make it possible to obtain tensile strength at the level of the 32G2 base metal. The study results of the microstructure and SEM fractographs after the optimal welding mode are presented.

scholarly journals The Optimum Process Parameter of Dissimilar Metal AA6061 – AISI304 Continuous Drive Friction Welding

2020 ◽  
Vol 55 (2) ◽  
Author(s):  
Totok Suwanda ◽  
Rudy Soenoko ◽  
Yudy Surya Irawan ◽  
Moch. Agus Choiron
Keyword(s):  
Tensile Strength ◽  
Response Surface ◽  
Process Parameters ◽  
Friction Welding ◽  
Welding Parameters ◽  
Optimum Process ◽  
Dissimilar Metals ◽  
Maximum Tensile Strength ◽  
Friction Pressure ◽  
Welding Processes

This article explains the use of the response surface method to produce the optimum tensile strength for the joining of dissimilar metals with the continuous drive friction welding method. The joining of dissimilar metals is one of the biggest challenges in providing industrial applications. Continuous drive friction welding has been extensively used as one of the important solid-state welding processes. In this study, the optimization of the friction welding process parameters is established to achieve the maximum tensile strength in AA6061 and AISI304 dissimilar joints via the response surface methodology. The effect of continuous drive friction welding parameters, which are friction pressure, friction time, upset pressure, and upset time, are investigated using response surface analysis. The design matrix factors are set as 27 experiments based on Box-Behnken. The 3D surface and the contour is plotted for this model to accomplish the tensile strength optimization. The optimization model of the tensile strength was verified by conducting experiments on the optimum values of the parameters based on the experimental data results. It can be denoted that the optimum process parameters settings were friction pressure = 25 MPa, friction time = 6 seconds, upset pressure = 140 MPa, and upset time = 8 seconds, which would result in a maximum tensile strength of 228.57 MPa.

Microstructures and Mechanical Properties of Solid-State Welded Steels

2021 ◽  
Vol 21 (9) ◽  
pp. 4877-4880
Author(s):  
Gyeong Woo Kim ◽  
Se Min Jeong
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Grain Refinement ◽  
Friction Welding ◽  
Vickers Microhardness ◽  
Rotation Speed ◽  
Base Material ◽  
Tensile Specimen ◽  
Refined Grains ◽  
Microstructures And Mechanical Properties

This study aimed to evaluate the soundness of solid-state welded steels. STS 430F alloy with a rod type was selected as experimental material, and the friction welding was conducted at a rotation speed of 2,000 RPM and upset length of 3 mm. The application of friction welding on STS 430F rods led to significant grain refinement in the welded zone (1.3 µm) compared to that observed in the base material (16.8 µm). The refined grains in the welds contributed to the development of the mechanical properties. In particular, the Vickers microhardness was increased by approximately 25% compared to the base material, and the fracture at the tensile specimen of the welds occurred at the base material zone and not in the welded zone, which suggests a soundly welded state on the STS 430F rods.

scholarly journals Microstructures and Mechanical Properties of Al/Fe and Cu/Fe Joints by Continuous Drive Friction Welding

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Yanni Wei ◽  
Fu Sun
Keyword(s):  
Tensile Test ◽  
Reaction Layer ◽  
Friction Welding ◽  
Welding Process ◽  
Chemical Compositions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Friction Pressure ◽  
Pure Metals ◽  
Joining Strength

The dissimilar pure metals Al/Fe and Cu/Fe with different metallurgical compatibility were joined by continuous drive friction welding. The friction weldability was investigated. The microstructure of the joining interface was analyzed by scanning electron microscopy, and the chemical compositions were tested by energy-dispersive spectroscopy. The joining strength was evaluated by tensile test, and the fracture was detected by X-ray diffraction analysis. The results show that sound joints of Al/Fe and Cu/Fe can be obtained by continuous drive friction welding process. A discontinuous reaction layer was formed on Al/Fe interface, and no obvious reaction layer appeared on Cu/Fe interface. The tensile strength of the joints increased with increasing friction pressure, and the highest strength could reach up to 70 MPa for Al/Fe joint and 222 MPa for Cu/Fe joint. All the Al/Fe friction-welded samples failed at the friction interface, while the Cu/Fe joint under 36 and 44 MPa friction pressure failed at Cu matrix during the tensile test.

Bond Interface Evaluation by Ultrasonic Testing and SEM for Radial Friction Welding Joints of Copper and Steel

2011 ◽  
Vol 328-330 ◽  
pp. 1457-1461
Author(s):  
Wei Wu ◽  
Ling Yun Zhu ◽  
Guang Feng Wu
Keyword(s):  
Friction Welding ◽  
Ultrasonic Testing ◽  
Optical Microscope ◽  
Scan Testing ◽  
Friction Pressure ◽  
Microstructure Examination ◽  
Bond Interface ◽  
Welding Joints ◽  
Constituent Elements ◽  
Radial Friction Welding

The bonds of T2 copper/50steel were studied by inertial radial friction welding techniques at different conditions. Ultrasonic C-scan testing was employed to evaluate the bonding situation. In order to verify the reliability of ultrasonic C-scan testing results, the optical microscope, SEM and shear test were used to analyse the microstructure and mechanical properties. It was found that ultrasonic C-scan testing was useful to evaluate the inertial radial friction welding joint situations by analyzing the ratio of good bonded area in the bond area of ultrasonic C-scan images. And the correctness of ultrasonic C-scan testing was testified by microstructure examination. Furthermore, it was concluded that enough metalline plastic deformation occurred, oxide film of joint was destroyed and constituent elements were mutually diffused sufficiently, when two stage pressure was employed and friction pressure 78 MPa, friction speed 3200r/min were used.

Microstructure and Hardness of Friction Welded SSM 356 Aluminium Alloy

2014 ◽  
Vol 887-888 ◽  
pp. 1273-1279 ◽  
Author(s):  
Kulyuth Boonseng ◽  
Chaiyoot Meengam ◽  
Suppachai Chainarong ◽  
Prapas Muangjunburee
Keyword(s):  
Aluminum Alloys ◽  
Aluminium Alloy ◽  
Friction Welding ◽  
Rotational Speed ◽  
Base Material ◽  
Original Structure ◽  
Welding Time ◽  
Globular Structure ◽  
Average Hardness ◽  
Semi Solid

SSM 356 aluminum alloys was obtained from a rheocasting technique named gas induced semi solid process has globular structure on base. The friction welding method conserve microstructure that is similar to the original structure of the base material a globular structure. It is also found that a rotational speed of 1750 RPM, burn of Length of 3.2 millimeters and welding time (upset time) of 30 second can produce a very good weld. The results of the investigation have shown that a have average hardness in the range 58.13 HV.

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