?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+WAKTU+PENGELASAN+TERHADAP+KUALITAS+SAMBUNGAN+LAS+MAGNESIUM+AZ31+DAN+ALUMUNIUM+AL+13+DENGAN+METODE+PENGELASAN+GESEK+&rft.creator=Ardian+Prabowo%2C+0915021051&rft.subject=Teknik+mesin+dan+mesin&rft.description=+++++Pengelasan+merupakan+suatu+proses+penting+di+dalam+dunia+industri+dan+merupakan+bagian+yang+tak+terpisahkan+dari+pertumbuhan+industri%2C.+Salah+satu+teknik+pengelasan+tanpa+menggunakan+logam+tambahan+adalah+friction+welding.+Friction+welding+(FW)+merupakan+teknik+pengelasan+dengan+cara+menggesekkan+dua+permukaan+material+dan+suhu+material+yang+di+las+dalam+kondisi+lumer+(tidak+mencapai+titik+cair).+Dalam+proses+friction+welding+salah+satu+material+berputar+dan+material+lainnya+diam%2C+kemudian+material+yang+tidak+berputar+di+gesekkan+pada+material+yang+berputar+dengan+diberi+penekanan+sampai+kedua+material+mencapai+kondisi+lumer+lalu+mesin+dihentikan+dan+terjadi+penyatuan+material.%0D%0A++++Penelitian+ini+dilakukan+dengan+beberapa+variasi+pengujian+waktu+kontak+pengelasan%2C+yaitu+pengujian+dengan+waktu+kontak+selama+3+menit%2C+5+menit%2C+dan+10+menit.+Sedangkan+Rpm+yang+digunakan+adalah+1400+rpm+serta+material+yang+digunakan+adalah+magnesium+AZ31+dan+alumunium+AL13.+Pada+pengujian+dengan+waktu+gesek+selama+10+menit+didapatkan+hasil+uji+kekuatan+tarik+yang+paling+optimal%2C+yaitu+sebesar+23%2C264+Mpa.+Sedangkan+pengujian+dengan+waktu+kontak+selama+3+menit+mempunyai+nilai+uji+kekuatan+tarik+terkecil+yaitu+sebesar+14%2C257+Mpa.+Dan+waktu+kontak+selama+5+menit+didapatkan+hasil+uji+kekuatan+tarik+sebesar+15%2C765+Mpa.+Dan+untuk+nilai+hasil+pengujian+kekerasan+Rockwell+didapat+nilai+kekerasan+rata-rata+pada+waktu+kontak+3+menit+sebesar+65%2C6+HRE+pada+daerah+stir+zone.+Untuk+waktu+kontak+selama+5+menit+diperoleh+nilai+kekerasan+rata-rata+sebesar+57%2C6+HRE+pada+daerah+stir+zone.+Sedangkan+waktu+kontak+selama+10+menit+diperoleh+nilai+kekerasan+Rockwell+sebesar+51+HRE+pada+daerah+stir+zone.%0D%0A%0D%0AKata+kunci+%3A+Friction+Welding%2C+Magnesium+AZ-31%2C+Alumunium+AL13%2C+Pengujian+tarik%2C+Kekerasan+Rockwell%2C+Struktur+makro.%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AWelding+process+is+an+important+process+in+industrial+engineering.+ecome+unseparated+growing+part+of+it.+One+of+the+welding+technique+without+using+an+additional+metal+is+friction+welding.+Friction+welding+(FW)+is+welding+technique+by+frictioning+two+surfaces+of+the+material+and+the+temperature+weld+material+in+the+molten+state+(melting+point+not+reached).+In+the+friction+welding+process%2C+one+of+the+material+rotating+and+the+other+isn%E2%80%99t%2C+then+the+not+rotating+material+being+frictioned+on+a+rotating+material+with+emphasis+untill+molten+condition+is+reached+then+mesin+stopped+when+the+materials+fused.+%0D%0AThe+research+is+done+by+some+variations+of+test+of+welding+contact%2C+the+variations+of+welding+contact+is+3+minutes%2C+5+minutes%2C+and+10+minutes+while+using+1400+rpm+and+using+materials+magnesium+AZ31+and+alumunium+AL13.+In+the+10+minutes+friction+tested+obtained+23%2C64+Mpa+optimal+tensile+strenght.+In+the+3+minutes+contact+tested+obtained+the+smallest+tensile+strength+amount+14%2C257+Mpa.+In+the+5+minutes+contact+tested+obtained+15%2C765+Mpa.+The+average-value+rockwell+tested+in+the+3+minutes+contact+time+is+65%2C6+HRE+in+the+stir+zone.+In+the+5+minutes+contact+time+obtained+57%2C6+HRE++in+the+stir+zone.+And+in+the+10+minutes+contact+time+obtained+51+HRE++in+the+stir+zone.%0D%0A%0D%0AKeywords+%3A+Friction+Welding%2C+Magnesium+AZ-31%2C+Alumunium+AL13%2C+Tensile+Strength%2C+Rockwell+Hardness%2C+Macro+Structure%0D%0A&rft.publisher=FAKULTAS+TEKNIK+&rft.date=2016-12-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F25610%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F25610%2F11%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F25610%2F12%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Ardian+Prabowo%2C+0915021051++(2016)+PENGARUH+WAKTU+PENGELASAN+TERHADAP+KUALITAS+SAMBUNGAN+LAS+MAGNESIUM+AZ31+DAN+ALUMUNIUM+AL+13+DENGAN+METODE+PENGELASAN+GESEK.++FAKULTAS+TEKNIK+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F25610%2F