?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+KECEPATAN+PUTAR+TERHADAP+KUALITAS%0D%0ASAMBUNGAN+LAS+FRICTION+WELDING+MAGNESIUM&rft.creator=Muhamad+Rizkhi%2C+1215021056&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Pengelasan+adalah+proses+penyatuan+logam%2C+pada+kedua+bagian+logam+dimana%0D%0Adilakukan+dengan+cara+perlakuan+panas%2C+yaitu+hingga+mencapai+fase+titik+leleh%0D%0Alogam+tersebut%2C+pada+prosesnya+itu+kita+lakukan+dengan+cara+memanfaatkan+energi%0D%0Apanas+yang+terdapat+dari+nyala+busur+atau+gesekan.+Pengelasan+adalah+teknik%0D%0Apenting+didalam+dunia+perindustrian+dan+juga+merupakan+suatu+teknik+yang+tidak%0D%0Adapat+dipisahkan+dari+pertumbuhan+industri%2C+dikarenakan+memegang+peranan%0D%0Autama+dalam+rekayasa+dan+perbaikan+logam.+Proses+pengelasan+degan+metode%0D%0Afriction+welding+dilakukan+eksperimen+dalam+jumlah+yang+banyak+untuk%0D%0Amendapatkan+sampel+terbaik.+Dihasilkan+Perbedaan+kualitas+hasil+pengelasan%0D%0Adengan+friction+welding+dan+parameter+perbedaan+kecepatan+rotasi+1150+rpm%2C%0D%0A1400+rpm%2C+1750+rpm.+Berdasarkan+hasil+dari+penelitian+tentang+pengaruh+variasi%0D%0Awaktu+kontak+friction+welding+terhadap+kualitas+hasil+pengelasan+magnesium+AZ-+31+dapat+diambil+kesimpulan+dari+pengujian+tarik+yang+dilakukan+didapatkan%0D%0Ahasil+kekuatan+tarik+maksimal+(UTS)+tertinggi+diperoleh+dari+spesimen+dengan%0D%0Avariasi+kecepatn+rotasi+1400+rpm+yakni+sebesar+21%2C942+Mpa+sedangkan+untuk%0D%0Aspesimen+dengan+variasi+kecepatan+putaran+spindel+1150+rpm+sebesar+20%2C6165%0D%0AMpa+dan+hasil+uji+tarik+terendah+diperoleh+spesimen+dengan+variasi+kecepatan%0D%0Aspindel+1700rpm+yakni+sebesar+12%2C4183+Mpa.+Dari+pengujian+kekerasan+yang%0D%0Adilakukan+didapatkan+hasil+kekuatan+kekerasan+tertinggi+diperoleh+dari+spesimen%0D%0Adengan+variasi+kecepatn+rotasi+1400+rpm+dengan+rata+%E2%80%93+rata+nilai+kekerasan+pada%0D%0Aarea+stir+zone+sebesar+57.1+Hv%2C+sedangkan+untuk+spesimen+dengan+variasi%0D%0Akecepatan+putaran+spindel+1150+rpm+sebesar+56.76+Hv+dan+spesimen+dengan%0D%0Avariasi+kecepatan+spindel+1700rpm+yakni+sebesar+55.23+Hv.%0D%0A%0D%0AKata+kunci+%3A+friction+welding%2C+Struktur+mikro+vickers%2C+dasar+teknik+pengelasan%2C%0D%0Ajenis-jenis+cacat+lasan.%0D%0AWelding+is+the+process+of+unification+of+metals%2C+on+both+parts+of+the+metal+which+is%0D%0Adone+by+means+of+heat+treatment%2C+namely+to+reach+the+melting+point+phase+of+the%0D%0Ametal%2C+in+the+process+we+do+it+by+utilizing+the+thermal+energy+contained+from+the%0D%0Aarc+or+friction.+Welding+is+an+important+technique+in+the+industrial+world+and+is%0D%0Aalso+a+technique+that+cannot+be+separated+from+industrial+growth%2C+because+it+plays%0D%0Aa+major+role+in+metal+engineering+and+repair.+Welding+process+with+friction%0D%0Awelding+method+is+carried+out+experiments+in+large+quantities+to+get+the+best%0D%0Asample.+The+resulting+difference+in+the+quality+of+welding+results+with+friction%0D%0Awelding+and+the+parameters+of+the+rotational+speed+difference+of+1150+rpm%2C+1400%0D%0Arpm%2C+1750+rpm.+Based+on+the+results+of+research+on+the+effect+of+friction+welding%0D%0Acontact+time+variations+on+the+quality+of+magnesium+AZ-31+welding+results%2C+it+can%0D%0Abe+concluded+that+the+tensile+test+results+obtained+the+highest+maximum+tensile%0D%0Astrength+(UTS)+results+obtained+from+specimens+with+1400+rpm+rotation+speed%0D%0Avariation+of+21%2C942+MPa+while+for+specimens+with+1150+rpm+spindle+rotation%0D%0Aspeed+of+20.6165+MPa+and+the+lowest+tensile+test+results+obtained+specimens+with%0D%0A1700+rpm+spindle+speed+variation+of+12.4183+MPa.+From+the+hardness+test%2C+the%0D%0Ahighest+hardness+strength+was+obtained+from+specimens+with+1400+rpm+rotational%0D%0Aspeed+variations+with+an+average+hardness+value+in+the+stir+zone+area+of+57.1+Hv%2C%0D%0Awhile+for+specimens+with+1150+rpm+spindle+rotation+speed+variation+was+56.76+Hv%0D%0Aand+specimens+with+variations+spindle+speed+of+1700rpm+which+is+equal+to+55.23%0D%0AHv.%0D%0A%0D%0AKeywords%3A+friction+welding%2C+vickers+microstructure%2C+basic+welding+techniques%2C%0D%0Atypes+of+weld+defects&rft.publisher=FAKULTAS+TEKNIK&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57027%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57027%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57027%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Muhamad+Rizkhi%2C+1215021056++(2019)+PENGARUH+KECEPATAN+PUTAR+TERHADAP+KUALITAS+SAMBUNGAN+LAS+FRICTION+WELDING+MAGNESIUM.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57027%2F