?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+WAKTU+KONTAK+FRICTION+WELDING+MAGNESIUM%0D%0AAZ-31+TERHADAP+KUALITAS+SAMBUNGAN+LAS&rft.creator=SOLIHIN+%2C+0915021063&rft.subject=+&rft.subject=Karya+Karya+Umum+%3D+000&rft.description=Pengelasan+merupakan+suatu+proses+penting+di+dalam+dunia+industri+dan%0D%0Amerupakan+bagian+yang+tak+terpisahkan+dari+pertumbuhan+industri%2C.+Salah+satu%0D%0Ateknik+pengelasan+tanpa+menggunakan+logam+tambahan+adalah+friction+welding.%0D%0AFriction+welding+(FW)+merupakan+teknik+pengelasan+dengan+cara+menggesekkan%0D%0Adua+permukaan+material+dan+suhu+material+yang+di+las+dalam+kondisi+lumer+(tidak%0D%0Amencapai+titik+cair).+Dalam+proses+friction+welding+salah+satu+material+berputar%0D%0Adan+material+lainnya+diam%2C+kemudian+material+yang+tidak+berputar+di+gesekkan%0D%0Apada+material+yang+berputar+dengan+diberi+penekanan+sampai+kedua+material%0D%0Amencapai+kondisi+lumer+lalu+mesin+dihentikan+dan+terjadi+penyatuan+material.%0D%0APenelitian+ini+dilakukan+dengan+beberapa+variasi+pengujian+waktu+kontak%0D%0Apengelasan%2C+yaitu+pengujian+dengan+waktu+kontak+selama+3+menit%2C+5+menit%2C+dan+10%0D%0Amenit.+Sedangkan+Rpm+yang+digunakan+adalah+1400+rpm.+Pada+pengujian+dengan%0D%0Awaktu+gesek+selama+3+menit+didapatkan+hasil+uji+kekuatan+tarik+yang+paling%0D%0Aoptimal%2C+yaitu+sebesar+16%2C78+Mpa.+Sedangkan+pengujian+dengan+waktu+kontak%0D%0Aselama+10+menit+mempunyai+nilai+uji+kekuatan+tarik+terkecil+yaitu+sebesar+4%2C25%0D%0AMpa.+Dan+waktu+kontak+selama+5+menit+didapatkan+hasil+uji+kekuatan+tarik%0D%0Asebesar+13%2C08+Mpa.+Dan+untuk+nilai+hasil+pengujian+kekerasan+Rockwell+didapat%0D%0Anilai+kekerasan+rata-rata+pada+waktu+kontak+3+menit+sebesar+60+HRE+pada+daerah%0D%0Astir+zone+dan+69%2C6+HRE+pada+daerah+HAZ.+Untuk+waktu+kontak+selama+5+menit%0D%0Adiperoleh+nilai+kekerasan+rata-rata+sebesar+60+HRE+pada+daerah+stir+zone+dan+64%2C6%0D%0AHRE+pada+daerah+HAZ.+Sedangkan+waktu+kontak+selama+10+menit+diperoleh+nilai%0D%0Akekerasan+Rockwell+sebesar+60+HRE+pada+daerah+stir+zone+dan+60%2C6+HRE+pada%0D%0Adaerah+HAZ.%0D%0AKata+kunci+%3A+Friction+Welding%2C+Magnesium+AZ-31%2C+Pengujian+tarik%2C+Kekerasan%0D%0ARockwell%2C+Struktur+makro%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AWelding+process+is+an+important+process+in+industrial+engineering.+ecome%0D%0Aunseparated+growing+part+of+it.+One+of+the+welding+technique+without+using+an%0D%0Aadditional+metal+is+friction+welding.+Friction+welding+(FW)+is+welding+technique%0D%0Aby+frictioning+two+surfaces+of+the+material+and+the+temperature+weld+material+in%0D%0Athe+molten+state+(melting+point+not+reached).+In+the+friction+welding+process%2C+one%0D%0Aof+the+material+rotating+and+the+other+isn%E2%80%99t%2C+then+the+not+rotating+material+being%0D%0Africtioned+on+a+rotating+material+with+emphasis+untill+molten+condition+is+reached%0D%0Athen+mesin+stopped+when+the+materials+fused.%0D%0AThe+research+is+done+by+some+variations+of+test+of+welding+contact%2C+the%0D%0Avariations+of+welding+contact+is+3+minutes%2C+5+minutes%2C+and+10+minutes+while+using%0D%0A1400+rpm.+In+the+3+minutes+friction+tested+obtained+16%2C78+Mpa+optimal+tensile%0D%0Astrenght.+In+the+10+minutes+contact+tested+obtained+the+smallest+tensile+strength%0D%0Aamount+4%2C25+Mpa.+In+the+5+minutes+contact+tested+obtained+13%2C08+Mpa.+The%0D%0Aaverage-value+rockwell+tested+in+the+3+minutes+contact+time+is+60+HRE+in+the+stir%0D%0Azone+and+69%2C6+HRE+in+the+HAZ+zone.+In+the+10+minutes+contact+time+obtained+60%0D%0AHRE+in+the+stir+zone+and+60%2C6+HRE+in+the+HAZ+zone.%0D%0AKeywords+%3A+Friction+Welding%2C+Magnesium+AZ-31%2C+Tensile+Strength%2C+Rockwell%0D%0AHardness%2C+Micro+Structure&rft.publisher=FAKULTAS+TEKNIK&rft.date=2016-08-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24085%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24085%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F24085%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++SOLIHIN+%2C+0915021063++(2016)+PENGARUH+WAKTU+KONTAK+FRICTION+WELDING+MAGNESIUM+AZ-31+TERHADAP+KUALITAS+SAMBUNGAN+LAS.++FAKULTAS+TEKNIK%2C++UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F24085%2F