Analisa Pengaruh Variasi Multiple Repair Dan Tanpa Repair Pada Pengelasan Fcaw Baja Karbon Jis  G3106 Sm 490 Yb Terhadap Sifat Mekanik

Trisdyanto, Gani; Choifin, Mochamad

doi:10.33379/gtech.v2i2.337

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Proses repair pengelasan dapat mengakibatkan perubahan sifat mekanik dan struktur pada material. Pada proses repair, daerah weld metal memiliki nilai kekerasan vickers tertinggi dibandingkan dengan daerah HAZ [3]. Struktur mikro dari hasil pengelasan ulang GMAW terjadi perubahan di daerah logam lasan dan daerah HAZ, hal ini dikarenakan semakin besar panas yang diberikan pada material membuat butir perlit menjadi semakin menyebar [4].…”

Section: Pendahuluanunclassified

Pengaruh Repair Las Gmaw Terhadap Kekuatan Tarik, Kekerasan, Dan Struktur Mikro Pada Material Baja A36

Pratama,

Yuwono,

Salim

et al. 2023

JETM

View full text Add to dashboard Cite

Welding is a technique of joining metal materials that has a detrimental impact in the form of defects in the material, especially welded joints, in the weld joint area with improper welding procedures resulting in weld defects in the material, changes in the crystal structure and mechanical properties of material. This research method is carried out by re-welding or repairing the defective material. The purpose of this study is to analyze and compare the mechanical properties of repair results with welded joints without repair. The repair process uses a variety of repair 2 times, repair 3 times, and repair 4 times by welding GMAW on A36 steel material. The results of the study were mechanical properties of the material in the form of the crystal structure of the specimen, the value of the hardness test and the ultimate tensile strength, microstructure testing there is a crystal structure of perlite and ferrite. The highest hardness test value is repair 2 times 170 HV, without repair 166 HV, repair 3 times 163.3 HV, and repair 4 times 162.8 HV on weld metal. The result of ultimate strength variation without repair 485 N/mm2, repair 2 times 466.5 N/mm2, repair 3 times 466.5 N/mm2, repair 4 times 468 N/mm2 with tensile test fracture located in the base metal area, the result of ultimate tensile strength repair 2 times, repair 3 times, repair 4 times is still within the minimum tensile provision of ASTM A36 steel material of 452 N/mm2 so that welded joints that are made up to 4 times repair can be used.

show abstract

Section: Pendahuluanunclassified

Pengaruh Repair Las Gmaw Terhadap Kekuatan Tarik, Kekerasan, Dan Struktur Mikro Pada Material Baja A36

Pratama,

Yuwono,

Salim

et al. 2023

JETM

View full text Add to dashboard Cite

show abstract

“…Dalam proses penyambungan logam, metode pengelasan (Welding) merupakan salah satu proses penyambungan yang umum dilakukan [1]. Proses penyambungan menggunakan metode las banyak digunakan pada industri otomotif, manufaktur, pemipaan dan lain-lain [2].…”

Section: Pendahuluanunclassified

Efek Perbaikan Las Berulang (Multilayer Repair Welding) pada Baja Carbon SS400 terhadap Struktur Mikro dan Kekerasan

Burhanudin

Chamim²,

Hidayah³

et al. 2022

CERIE

View full text Add to dashboard Cite

Salah satu metode untuk menghilangkan cacat pada hasil pengelasan adalah dengan melakukan perbaikan las ( repair welding ). Penelitian ini bertujuan untuk menginvestigasi karakteristik material baja carbon tipe SS400 sebelum dan sebelum mengalami perbaikan las (repair welding). Pengelasan dilakukan menggunakan metode Shielded Metal Arc Welding (SMAW) dengan elektroda jenis LB-52U E7016 yang memiliki diameter 2,6 mm. Sebelum dilakukan perbaikanlas ( repair welding ), dilakukan pengelasan lapisan ( multilayer weld ing ) pada spesimen sebanyak tiga kali lapisan yakni lapisan rootpass , hotpassdan caping. Kemudian spesimen yang telah mengalami pengelasan berlapis ( multilayer welding ) dilakukan perbaikan las ( repair welding ) pada daerah kawah lasan ( weld ). Spesimen selanjutnya dianalisa terhadap perubahan struktur mikro menggunakan pengujian morfologi berupa foto mikro serta sifat mekanik menggunakan uji kekerasan Vickers disetiap daerah lasan yakni logam induk ( base metal ), Heat Affected Zone (HAZ) dan daerah pengelasan ( weld ) pada spesimen sebelum dan sebelum perbaikan las berulang ( pengelasan perbaikan multilayer ).Hasil dari Analisis menunjukkan bahwa struktur mikro spesimen sebelum dan sebelum perbaikan las terdapat 2 fasa yang terlihat yakni fasa ferit dan fasa perlit. Pada daerah base metal fasa ferit lebih mendominasi dengan batas butir yang cenderung besar pada spesimen sebelum dan sebelum perbaikan las. Sedangkan pada daerah HAZ terlihat pengkasaran butir ( grain

show abstract

“…Based on these problems, it is necessary to conduct a study to determine the appropriate number of welding repairs so that there is no decrease in the strength of the welding connection due to the excessive number of welding repairs [6][7]. Several studies on welding repair have been carried out to obtain suitable welding parameters [8]- [12]. From this research, it is hoped that the industry will get information about the effect of repair for the welding process of materials, especially on ASTM A36 steel material on the value of hardness, tensile strength of welding joints.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

Jurnal Polimesin

View full text Add to dashboard Cite

The welding repair process greatly affects the procedure of a welding process to be able to obtain the results of a connection that is safe and in accordance with its provisions. The strength of the welded joint must be considered and ensured that its strength is at least close to the original strength of the material used. In a welding process, errors or omissions are often made accidentally by the welder or the work environment and the selection of welding variable parameters is not appropriate so that welding defects occur. Welding defects can affect the strength of the weld joint. The purpose of this study was to determine the effect of welding repair on the mechanical properties of ASTM A36 material. The material used in conducting this research and testing is ASTM A36 steel plate. Welding was carried out on 4 specimens with the method without repair, repair 1x, repair 2x and repair 3x. Based on the test results, the number of repairs greatly affects the strength of the material connection. The highest maximum tensile strength value in 1 repair specimen is 501.90 Mpa and the lowest is in unwelded material or base metal of 467.97 Mpa. The results of the highest hardness test on the repair material 1 time of 30.83 HRC in the weld metal area and the lowest hardness value on the repair specimen 3 times in the HAZ area of 21 HRC. The results of the macro photo test on each specimen did not detect any welding defects on the inside of the welded material. the largest HAZ width in the 3 times repair material is 21.5 mm and the smallest HAZ width in the specimen without repair is 18 mm.

show abstract

Analisa Pengaruh Variasi Multiple Repair Dan Tanpa Repair Pada Pengelasan Fcaw Baja Karbon Jis G3106 Sm 490 Yb Terhadap Sifat Mekanik

Cited by 3 publications

References 0 publications

Pengaruh Repair Las Gmaw Terhadap Kekuatan Tarik, Kekerasan, Dan Struktur Mikro Pada Material Baja A36

Pengaruh Repair Las Gmaw Terhadap Kekuatan Tarik, Kekerasan, Dan Struktur Mikro Pada Material Baja A36

Efek Perbaikan Las Berulang (Multilayer Repair Welding) pada Baja Carbon SS400 terhadap Struktur Mikro dan Kekerasan

Untitled

Contact Info

Product

Resources

About