Friction-based welding processes: friction welding and friction stir welding

Rajak, Dipen Kumar; Pagar, Durgesh D.; Menezes, Pradeep L.; Eyvazian, Arameh

doi:10.1080/01694243.2020.1780716

Cited by 107 publications

(27 citation statements)

References 155 publications

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“…The highest hardness is 14% higher than the least hardness measured. Although the nanohardness of the TiAlN sample is measured, there are high chances of getting defective measurements due to the presence of defects under the subsurfaces of the surface [33].…”

Section: Resultsmentioning

confidence: 99%

Experimental Investigation on Mechanical Properties of TiAlN Thin Films Deposited by RF Magnetron Sputtering

Natrayan

Balaji

Bharathiraja

et al. 2021

Journal of Nanomaterials

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The mechanical properties of TiAlN deposited on the steel are explained in this study. Thin films are deposited by RF magnetron sputtering on the steel substrates to improve the wear resistance and hardness of the samples. Due to their improved microstructure and nanograins, the nanofilms have improved the mechanical properties of the steel substrate surface. The thin film deposited has improved the wear resistance by 80% and has improved the hardness by 95%. The deposited thin films are tested for hardness by nanoindentation and wear test by the pin-on-disk test. SEM has tested films for their microstructure and adhesion by nanoscratch test.

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Section: Resultsmentioning

confidence: 99%

Experimental Investigation on Mechanical Properties of TiAlN Thin Films Deposited by RF Magnetron Sputtering

Natrayan

Balaji

Bharathiraja

et al. 2021

Journal of Nanomaterials

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“…Porositas yang di perlihatkan dari cairan penetrant yang keluar dari permukaan setelah diberikan cairan developer ini belum dapat menyatakan hasil lasnya tersambung dengan baik atau tidaknya. Kekuatan luluh material lebih rendah dibandingkan dengan kekuatan sambungan las friction welding [10], [11]. Hal ini berdasarkan adanya gerakan dislokasi yang disebabkan butir mendapatkan proses heating yang mengalami penghalusan yang sebelumnya terdeformasi (cold-rolled), sehingga kekuatannya meningkat.…”

Section: Gambar 7 Hasil Pengujian Liquid Penetrantunclassified

Analisis Kekuatan Tarik dan Cacat Porositas pada Friction Welding Logam (FE, AL & FE-AL)

Kosasih¹,

Nugraha²,

Susanto³

2020

METTEK

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Tujuan penelitian ini melakukan friction welding pipa (Fe), (Al), dan (Fe-Al) dengan mesin bubut. Metode penelitian ini adalah eksperimen, dengan penyambungan spesimen pipa silinder dengan bantuan mesin bubut. Proses pengujian hasil sambungan menggunakan Destructive Test yaitu uji tarik dan Non-Destructive Test yaitu liquid penterant untuk mengetahui cacat porositas. Hasil penelitian menunjukkan teknik friction welding serta direct drive welding bisa digunakan dalam proses penyambungan pipa (Fe) dan penyambungan pipa (Al). Pada penyambungan logam tak sejenis yakni antara pipa (Fe) dan pipa (Al) tidak dapat menghasilkan ikatan sambungan karena perbedaan titik leleh material dan tingkat kekerasan material. Suhu sangat berpengaruh terhadap sambungan, hasil sambungan lasan yang baik dapat dicapai dengan meningkatkan temperature pengelasan pada saat proses pengerjaan. Cacat porositas terjadi karena butiran tidak menghasilkan fusi sehingga logam tidak bersatu menyeluruh, hal ini disebabkan temperature tidak mencapai yang dibutuhkan. Temperature yang tinggi dapat dihasilkan dari RPM yang semakin tinggi serta lamanya waktu benda bergesekan. Sehingga benda kerja yang dihasilkan memiliki nilai uji tarik yang baik dan cacat porositas dapat direduksi. The purpose of this research is to perform pipe friction welding (Fe), (Al), and (Fe-Al) with a lathe. This research method is experimental, by connecting the specimen cylinder pipe with the help of a lathe. The process of testing the connection results using the Destructive Test, namely the tensile test and the Non-Destructive Test, namely the liquid penterant to determine porosity defects. The results showed that friction welding techniques and direct drive welding can be used in the process of connecting pipe (Fe) and pipe joining (Al). In non-similar metal joints, namely between pipe (Fe) and pipe (Al), it cannot produce connection bonds due to differences in the melting point of the material and the level of material hardness. Temperature greatly affects the joint, good weld joint results can be achieved by increasing the welding temperature during the working process. Porosity defects occur because the grains do not produce fusion so that the metal does not come together completely, this is because the temperature does not reach the required temperature. A high temperature can be generated from a higher RPM and the length of time the object rubs. So that the resulting workpiece has a good tensile test value and the porosity defects can be reduced.

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“…Similarly, in FRW the materials are joined by direct friction without a tool [30]. Although FRW can be used to join dissimilar materials, several issues can arise if the melting characteristics and mechanical properties of the materials differ significantly [31], which is the case of aluminum-steel combination. Additionally, the size of the pieces to be joined is limited by the possibility of mounting them on the available FRW system [31].…”

Section: Introductionmentioning

confidence: 99%

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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The development of high-performance dissimilar aluminum–steel joints is necessary to promote the feasibility of multi-material design and lightweight manufacturing. However, joining aluminum to steel is a challenging task mainly due to the formation of brittle intermetallic compounds (IMC) at the joint interface. Laser welding is considered a very promising joining process for dissimilar materials, although its application in industry is still limited by the insufficient mechanical performance of the joints. The present paper aims to give a comprehensive review of relevant recent research work on laser joining of aluminum to steel, contributing to highlighting the latest achievements that could boost acceptance of laser joining of dissimilar materials by the modern industries. To this end, the most important challenges in laser joining of aluminum to steel are presented, followed by recent approaches to overcome these challenges, the state-of-art of comprehension of IMC formation and growth, and the different strategies to minimize them.

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Friction-based welding processes: friction welding and friction stir welding

Cited by 107 publications

References 155 publications

Experimental Investigation on Mechanical Properties of TiAlN Thin Films Deposited by RF Magnetron Sputtering

Experimental Investigation on Mechanical Properties of TiAlN Thin Films Deposited by RF Magnetron Sputtering

Analisis Kekuatan Tarik dan Cacat Porositas pada Friction Welding Logam (FE, AL & FE-AL)

Recent Developments in Laser Welding of Aluminum Alloys to Steel

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