?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+BENTUK+KAMPUH+LAS+J+TUNGGAL+DOBEL%0D%0AJ+DAN+U+TERHADAP+HASIL+PENGUJIAN+TARIK%0D%0A%0D%0APADA+MATERIAL+BAJA%0D%0AAISI+1020&rft.creator=%09Bala%09%2C+-&rft.subject=600+Teknologi+(ilmu+terapan)&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Proses+pengelasan+adalah+suatu+proses+yang+menggunakan+energi+panas+untuk%0D%0Amenyatukan+dua+atau+lebih+bagian+logam.+Proses+ini+menyebabkan+area+di+sekitar%0D%0Alasan+mengalami+siklus+termal+yang+cepat%2C+menyebabkan+perubahan+metalurgi%0D%0Ayang+kompleks%2C+deformasi%2C+dan+tekanan+termal.+Penelitian+ini+bertujuan%0D%0Amenganalisis+pengaruh+bentuk+kampuh+las+terhadap+kekuatan+tarik+pada+material%0D%0Abaja+AISI+1020+dan+juga+menganalisis+pengaruh+penggunaan+bentuk+kampuh+las+J%2C%0D%0Adobel+J+dan+U+pada+pengelasan+Shielded+Metal+Arc+Welding+(SMAW)+terhadap%0D%0Astruktur+mikro+baja+AISI+1020.+Arus+pengelasan+yang+digunakan+dalam%0D%0Apengelasan+sebesar+90A+dengan+posisi+pengelasan+horizontal.+Untuk+tipe+serta%0D%0Adiameter+logam+pengisi+(filler+metal)+pada+pengelasan+ini+digunakan+logam%0D%0Apengisi+tipe+E6013+dengan+diameter+3%2C2+mm%2C+berdasarkan+standar+AWS+A5.1.%0D%0ASedangkan+ukuran+alur+kampuh+diambil+berdasarkan+rekomendasi+JSSC-1997%0D%0A(Japan+Society+Of+Steel+Construction)+tentang+persiapan+sisi+untuk+pengelasan%0D%0Abaja.+Pengujian+tarik+yang+dilakukan+pada+spesimen+uji+menggunakan+standar%0D%0AASTM+E8.+Pengujian+ini+dengan+menggunakan+universal+testing+machine+yang%0D%0Adihubungkan+langsung+dengan+plotter%2C+sehingga+dapat+diperoleh+grafik+tegangan%0D%0A(MPa)+dan+regangan+(%25)+yang+memberikan+nilai+data+dari+tegangan+ultimate+(%CF%83%0D%0Ault)+dan+modulus+elastisitas+bahan+(E).+Pengujian+tarik+dilakukan+dengan%0D%0Amenyiapkan+spesimen+uji+yang+sudah+dibentuk+sesuai+dengan+standar+ASTM+E8.%0D%0AMikroskop+yang+digunakan+dalam+pengamatan+struktur+mikro+adalah+mikroskop%0D%0Ametalurgi+dengan+merek+Inverted+Metallurgical+Mikroscope+Nikon+ECLIPSE+MA%0D%0A100+dan+larutan+etsa+yang+digunakan+adalah+Nital+2%25+(2+Ml+HNO3+65%25+ditambah%0D%0A98mL+etanol+(97%25)+dan+pengamatan+visualisasi+struktur+mikro+menggunakan%0D%0Ametalografi.%0D%0A%0D%0AKata+Kunci%3A+Pengelasan%2C+Kampuh+Las%2C+Uji+Tarik%2C+Pengamatan+Struktur+Mikro%0D%0AThe+welding+process+is+a+technique+that+uses+heat+energy+to+join+two+or+more+metal%0D%0Aparts.+This+process+causes+the+area+around+the+weld+to+undergo+a+rapid+thermal%0D%0Acycle%2C+leading+to+complex+metallurgical+changes%2C+deformation%2C+and+thermal%0D%0Astresses.+This+research+aims+to+analyze+the+effect+of+weld+joint+shapes+on+the%0D%0Atensile+strength+of+AISI+1020+steel+and+to+study+the+impact+of+using+J%2C+double+J%2C%0D%0Aand+U-shaped+weld+joints+in+Shielded+Metal+Arc+Welding+(SMAW)+on+the%0D%0Amicrostructure+of+AISI+1020+steel.+The+welding+current+used+in+this+welding+is%0D%0A90A+with+a+horizontal+welding+position.+For+the+type+and+diameter+of+the+filler%0D%0Ametal%2C+an+E6013+type+with+a+diameter+of+3.2+mm+is+used%2C+based+on+AWS+A5.1%0D%0Astandards.+The+groove+size+of+the+weld+joint+is+taken+based+on+the+JSSC-1997%0D%0A(Japan+Society+Of+Steel+Construction)+recommendations+on+edge+preparation+for%0D%0Asteel+welding.+Tensile+testing+was+conducted+on+test+specimens+using+the+ASTM%0D%0AE8+standard.+This+test+uses+a+universal+testing+machine+connected+directly+to+a%0D%0Aplotter+to+obtain+stress+(MPa)+and+strain+(%25)+graphs+that+provide+data+values+for%0D%0Aultimate+stress+(%CF%83+ult)+and+the+material's+modulus+of+elasticity+(E).+The+tensile+test%0D%0Ais+performed+by+preparing+test+specimens+formed+according+to+the+ASTM+E8%0D%0Astandard.+The+microscope+used+for+microstructure+observation+is+a+Nikon%0D%0AECLIPSE+MA+100+Inverted+Metallurgical+Microscope%2C+and+the+etching+solution%0D%0Aused+is+2%25+Nital+(2+mL+of+65%25+HNO3+mixed+with+98+mL+of+97%25+ethanol).%0D%0AVisualization+of+the+microstructure+is+performed+using+metallography.%0D%0A%0D%0AKeywords%3A+Welding%2C+Weld+Joint%2C+Tensile+Test%2C+Microstructure+Observation&rft.publisher=TEKNIK&rft.date=2024-07-17&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87544%2F1%2F1.%2520ABSTRAK%2520-Bala.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87544%2F2%2F2.%2520SKRIPSI%2520FULL%2520-%2520Bala.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87544%2F3%2F3.%2520SKRIPSI%2520FULL%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Bala.pdf&rft.identifier=+++Bala+%2C+-++(2024)+PENGARUH+BENTUK+KAMPUH+LAS+J+TUNGGAL+DOBEL+J+DAN+U+TERHADAP+HASIL+PENGUJIAN+TARIK+PADA+MATERIAL+BAJA+AISI+1020.++TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F87544%2F