?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISI+STRUKTUR+MIKRO+ALUMINIUM+6061+DENGAN+VARIASI%0D%0AKECEPATAN+PUTAR+PADA+PENGELASAN+GESEK+(FRICTION%0D%0A%0D%0AWELDING)&rft.creator=Esa+Perkasa%2C+Kumajaya&rft.subject=600+Teknologi+(ilmu+terapan)&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Teknologi+las+gesek+(friction+welding)+merupakan+salah+satu+metoda+proses%0D%0Apengelasan+jenis+solid+state+welding.+Panas+yang+terjadi+ditimbulkan+oleh+dua+logam%0D%0Ayang+bergesekan.+Kombinasi+panas+dan+tekanan+tempa+menyebabkan+dua+buah%0D%0Alogam+dapat+tersambung.+Aluminium+6061+merupakan+aluminium+dengan%0D%0Akomponen+pemadu+magnesium+dan+silikon%2C+paduan+jenis+ini+merupakan+jenis+yang%0D%0Abisa+dilakukan+heat+treatment+dan+memiliki+sifat+mampu+potong+juga+daya+tahan%0D%0Akorosi+yang+cukup+baik.+Penelitian+ini+dilakukan+untuk+melakukan+analisis+struktur%0D%0Amikro+pada+material+aluminium+6061+hasil+pengelasan+gesek+(friction+welding)%0D%0Adengan+variasi+kecepatan+putar+untuk+dapat+menganalisa+sifat+material+berdasarkan%0D%0Akomposisi+kandungan+kimia+yang+terkandung+didalamnya.%0D%0APengelasan+gesek+merupakan+jenis+teknik+penyambungan+yang+dipilih+dalam%0D%0Apenelitian+ini+dan+material+yang+digunakan+adalah+Al-6061.+Parameter+pemesinan%0D%0Ayang+digunakan+adalah+kecepatan+putar+1400+RPM+dan+1750+RPM%2C+sedangkan%0D%0Awaktu+gesek+yang+digunakan+adalah+2+menit.+Kualitas+sambungan+pada+zona+las%0D%0A(weld+zone)+dapat+dianalisis+menggunakan+metode+analisis+struktur+mikro+dengan%0D%0Amenggunakan+optical+microscope+(OM)+dengan+skala+pembesaran+10%CE%BC.%0D%0AHasil+pengelasan+gesek+aluminium+6061+dengan+kecepatan+1400+RPM+diuji%0D%0Amenggunakan+metode+struktur+mikro.+Sampel+C+mempunyai+kualitas+sampel+yang%0D%0Alebih+baik+dibanding+sampel+A+dan+B%2C+karena+mengandung+fasa+Mg2Si%2C+ferrite+dan%0D%0Apearlite+berbentuk+butiran+halus+serta+tersebar+merata+pada+permukaan+Al.+Pada%0D%0Akecepatan+1750+RPM.+Spesimen+E+merupakan+spesimen+dengan+hasil+terbaik%0D%0Akarena+mengandung+fasa+Mg2Si%2C+ferrite+dan+pearlite+lebih+halus+dan+merata+pada%0D%0Apermukaan+Al.+Dilihat+dari+kedua+parameter+kecepatan+putaran+tersebut%2C+spesimen%0D%0AC+dengan+kecepatan+putaran+1400+RPM+merupakan+spesimen+dengan+kualitas%0D%0Aterbaik+diantara+keenam+benda+uji+tersebut+karena+mengandung+fasa+Mg2Si%2C+ferrite%2C%0D%0Adan+pearlite+berbutir+paling+halus%2C+serta+berada+pada+permukaan+Al+yang+merata.%0D%0A%0D%0AKata+kunci+%3A+pengelasan+gesek%2C+Al-6061%2C+struktur+mikro.%0D%0A%0D%0AFriction+welding+technology+is+one+of+the+solid+state+welding+process+methods.%0D%0AThe+heat+that+occurs+is+generated+by+two+metals+rubbing+against+each+other.+By%0D%0Autilizing+a+combination+of+heat+and+forging+pressure%2C+two+pieces+of+metal+can+be%0D%0Aconnected.+Aluminum+6061+is+a+category+of+6xxx+series+aluminum+with+magnesium%0D%0Aand+silicon+alloy+components.+This+type+of+alloy+is+included+in+the+type+that+can+be%0D%0Aheat+treated+and+has+quite+good+cutting+properties+and+corrosion+resistance.+This%0D%0Aresearch+was+carried+out+to+carry+out+microstructural+analysis+of+6061+aluminum%0D%0Amaterial+resulting+from+friction+welding+with+variations+in+rotational+speed+to+be%0D%0Aable+to+analyze+the+properties+of+the+material+based+on+the+chemical+composition%0D%0Acontained+therein.%0D%0AFriction+welding+is+the+type+of+joining+technique+chosen+in+this+research+and%0D%0Athe+material+used+is+Al-6061.+The+machining+parameters+used+are+rotational+speeds%0D%0Aof+1400+RPM+and+1750+RPM%2C+while+the+friction+time+used+is+2+minutes.+The+quality%0D%0Aof+the+joint+in+the+weld+zone+can+be+analyzed+using+the+microstructural+analysis%0D%0Amethod+using+an+optical+microscope+(OM)+with+a+magnification+scale+of+10%CE%BC.%0D%0AThe+results+of+friction+welding+of+6061+aluminum+at+a+speed+of+1400+RPM+were%0D%0Atested+using+the+microstructure+method.+Sample+C+has+better+sample+quality+than%0D%0Asamples+A+and+B%2C+because+it+contains+Mg2Si%2C+ferrite+and+pearlite+phases+in+the+form%0D%0Aof+fine+grains+and+is+evenly+distributed+on+the+Al+surface.+At+a+speed+of+1750+RPM.%0D%0ASpecimen+E+is+the+specimen+with+the+best+results+because+it+contains+smoother+and%0D%0Amore+even+Mg2Si%2C+ferrite+and+pearlite+phases+on+the+Al+surface.+Judging+from+these%0D%0Atwo+rotation+speed+parameters%2C+specimen+C+with+a+rotation+speed+of+1400+RPM+is%0D%0Athe+specimen+with+the+best+quality+among+the+six+test+objects+because+it+contains+the%0D%0Afinest+grained+Mg2Si%2C+ferrite+and+pearlite+phases%2C+and+is+on+an+even+Al+surface.%0D%0A%0D%0AKeywords+%3A+friction+welding%2C+Al-6061%2C+micro+structure&rft.publisher=FAKULTAS+TEKNIK&rft.date=2024-06-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82206%2F1%2FABSTRAK%2520-%2520Esa%2520Perkasa%2520Kumajaya%25202017_28.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82206%2F3%2FFULL%2520TANPA%2520PEMBAHASAN%2520-%2520Esa%2520Perkasa%2520Kumajay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