?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+VARIASI+DIAMETER+ELEKTRODA+TUNGSTEN+HASIL+LAS+TIG+(TUNGSTEN+INERT+GAS)+TERHADAP+KEKUATAN+TARIK+DAN+STRUKTUR+MIKRO+BAJA+KARBON+MEDIUM%0D%0A&rft.creator=NUR+SAIIN%2C+1015021046&rft.subject=Teknik+mesin+dan+mesin&rft.description=ABSTRAK%0D%0A%0D%0ADalam+praktek+pengelasan+elektroda+terbungkus+masih+banyak+cacat+yang+terjadi+%0D%0Adiakibatkan+oksidasi+dan+pengotoran.+Untuk+mengatasi+kelemahan+pada%0D%0Apengelasan+elektroda+terbungkus+tersebut+maka+digunakan+teknologi+pengelasan%0D%0ATIG.+Las+TIG+(Tungsten+Inert+Gas)+adalah+proses+pengelasan+dimana+busur+nyala%0D%0Alistrik+ditimbulkan+oleh+elektroda+tungsten+(elektroda+tak+terumpan).+Tujuan+dari%0D%0Apenelitian+ini+yaitu+untuk+mengetahui+pengaruh+variasi+diameter+elektroda%0D%0Atungsten+hasil+las+TIG+terhadap+kekuatan+tarik+dan+struktur+mikro+baja+karbon%0D%0Amedium.+Pada+penelitian+ini+jenis+tungsten+tungsten+yang+digunakan+yaitu+EWTh2%0D%0Adengan%0D%0Adiameter%0D%0A1%2C6%0D%0Amm%2C%0D%0A2%2C4%0D%0Amm%2C%0D%0Adan%0D%0A3%2C2%0D%0Amm%2C%0D%0Aarus%0D%0Ayang%0D%0Adigunakan%0D%0Ayaitu%0D%0A100%0D%0A%0D%0AA%2C%0D%0A%0D%0A150+A+dan+200+A.+Material+yang+digunakan+pada+penelitian+ini+yaitu+baja%0D%0Akarbon+Medium+dengan+jenis+kampuh+V+tunggal+pengujian+yang+digunakan+yaitu%0D%0Auji+tarik+dan+struktur+mikro+dengan+mengacu+pada+standar+uji+ASTME8.+Dari+hasil%0D%0Apengujian+yang+telah+dilakukan+diketahui+baja+karbon+medium+memiliki%0D%0Akomposisi+kimia+yaitu+0%2C36+C%2C+0%2C034+Si%2C+0%2C52+Mn%2C+0%2C018+P%2C+0%2C0074+S%2C+1%2C16+Cr%2C%0D%0A0%2C0739+Ni%2C+0%2C021+Al%2C+97%2C0+Fe+dan+lain-lain.+Pengujian+dilakukan+dengan+uji+tarik%0D%0Adimana+rata-rata+hasil+pengujian+yaitu+pada+variasi+diameter+elektroda+1%2C6+mm%0D%0Akekuatan+tarik+sebesar+304%2C4+Mpa+dan+perpanjangannya+15%2C49+%25.+Pada+variasi%0D%0Adiameter+elektroda+2%2C4+mm+kekuatan+tarik+sebesar+686%2C6+Mpa+dan%0D%0Aperpanjangannya+20%2C17+%25+dan+pada+variasi+diameter+elektroda+3%2C2+mm+kekuatan%0D%0Atarik+sebesar+677%2C73+Mpa+dengan+perpanjangan+18%2C37%25+sedangkan+pada+raw%0D%0Amaterial+kekuatan+tarik+sebesar+713%2C3+Mpa+dengan+perpanjangan+23%2C35%25.+%0D%0A%0D%0AKata+kunci%3A+Las+TIG%2C+Elektroda+Tungsten%2C+Baja+Karbon+Medium+%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AIn+the+practice+of+shielded+electrode+arc+welding%2C+some+defects+still+occured+due+to%0D%0Aoxidation+and+impurity.+To+overcome+those+weaknesses+in+the+shielded+electrode%0D%0Aarc+welding+therefore+TIG+welding+should+be+used.+TIG+(Tungsten+Inert+Gas)+is+an%0D%0Aarc+welding+process+in+which+the+electric+flame+generated+by+the+tungsten%0D%0Aelectrode+(non+consumable+electrode).+The+purpose+of+this+research+is+to+determine%0D%0Athe+effect+of+variations+in+the+diameter+of+the+tungsten+electrode+TIG+welds+on%0D%0Atensile+strength+and+microstructure+of+medium+carbon+steel.+In+this+research%2C+the%0D%0Atype+of+tungsten+used+is+EWTh-2+with+a+diameter+of+1.6+mm%2C+2.4+mm+and+3.2+mm%2C%0D%0Athe+current+used+is+100+A%2C+150+A+and+200+A.+The+material+used+in+this+research+is%0D%0Acarbon+steel+medium+with+a+single+V+type+test+used+is+the+tensile+test+and%0D%0Amicrostructure+with+reference+to+a+standard+test+ASTME8.+From+the+test+results%0D%0Athat+have+been+made+known+medium+carbon+steel+has+a+chemical+composition+that%0D%0Ais+0.36+C%2C+0.034+Si%2C+0.52+Mn%2C+0.018+P%2C+0.0074+S%2C+1.16+Cr%2C0.0739+Ni%2C+0.021+Al%2C+97%0D%0AFe+and+others.+Tests+conducted+by+the+tensile+test+where+the+average+test+results%0D%0Aare+on+a+variation+of+1.6+mm+diameter+electrode+tensile+strength+of+304.4+MPa+and%0D%0A15.49%25+elongation.+In+a+variation+of+2.4+mm+diameter+electrode+tensile+strength+of%0D%0A686.6+MPa+and+20.17%25+elongation+and+the+variation+of+the+electrode+diameter+of%0D%0A3.2+mm+tensile+strength+of+677.73+Mpa+with+an+elongation+of+18.37%25+while+in+the%0D%0Araw+material+tensile+strength+of+713+%2C+3+MPa+with+an+elongation+of+23.35%25.+%0D%0A%0D%0AKeywords+%3A+TIG+Welding%2C+Tungsten+Electrode%2C+Medium+Carbon+Steel+%0D%0A+&rft.publisher=FAKULTAS+TEKNIK&rft.date=2016-08-04&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23725%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23725%2F19%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23725%2F20%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++NUR+SAIIN%2C+1015021046++(2016)+PENGARUH+VARIASI+DIAMETER+ELEKTRODA+TUNGSTEN+HASIL+LAS+TIG+(TUNGSTEN+INERT+GAS)+TERHADAP+KEKUATAN+TARIK+DAN+STRUKTUR+MIKRO+BAJA+KARBON+MEDIUM.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F23725%2F