?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISA+KEAUSAN+PAHAT+PUTAR+PADA+PEMBUBUTAN+MAGNESIUM+AZ31+MENGGUNAKAN+UDARA+DINGIN+BERTEKANAN&rft.creator=DHIKA+ARIFIAN%2C+1215021029&rft.subject=Mesin+(General).+Mesin+Sipil+(General)&rft.description=Paduan+magnesium+merupakan+salah+satu+bahan+yang+paling+banyak+digunakan+di+industri+manufaktur+karena+sifatnya+yang+ringan%2C+tahan+korosi+dan+penghantar+panas+yang+baik.+Namun+magnesium+juga+dikenal+sebagai+bahan+logam+yang+memiliki+titik+nyala+yang+rendah+sehingga+mudah+terbakar.+Suhu+pemotongan+yang+tinggi+dianggap+merugikan+karena+dapat+menyebabkan+pahat+menjadi+cepat+aus%2C+sehingga+effisiensi+proses+pemesinan+menurun+dan+meningkatnya+biaya+produksi.+Salah+satu+metode+untuk+menurunkan+suhu+pemotongan+dengan+menggunakan+pahat+potong+berputar%2C+dimana+pahat+akan+mengalami+pendinginan+selama+periode+putaran+tanpa+pemotongan.+Tujuan+dari+penelitian+ini+adalah+untuk+mendapatkan+nilai+aus+pahat+potong+berputar+(rotary+tool)+dan+mengimplimentasikan+metode+pahat+putar+dan+udara+dingin+untuk+meminimumkan+keausan+pahat+potong.+Pemesinan+menggunakan+pahat+insert+carbide+berdiameter+16+mm+serta+magnesium+AZ31+dan+udara+dingin+bertekanan+6+bar+pada+parameter+kecepatan+benda+kerja+(Vw)+80%2C+120%2C+180+m%2Fmin%2C+gerak+makan+(f)+0.10%2C+0.15%2C+0.20+mm%2Frev%2C+kecepatan+potong+pahat+putar+(Vt)+25%2C+50%2C+75+mm%2Fmin%2C+serta+kedalaman+potong+0%2C3+m.+Hasil+pengukuran+aus+menggunakan+mikroskop+USB+didapat+nilai+aus+minimum+0.286+mm+dengan+nilai+laju+keausan+rata+%E2%80%93+rata+5.6+%25+pada+putaran+benda+kerja+(Vw)+80+m%2Fmin+pada+gerak+makan+0.1+mm%2Frev+dengan+kecepatan+potong+pahat+putar+(Vt)+50+m%2Fmin+dan+kedalaman+potong+0.3+mm++dan+nilai+aus+maksimum+0.448+mm+dengan+nilai+laju+keausan+rata+%E2%80%93+rata+13.5+%25+pada+putaran+benda+kerja+(Vw)+160+m%2Fmin+pada+gerak+makan+0.15+mm%2Frev+dengan+kecepatan+potong+pahat+putar+(Vt)+75+m%2Fmin+dan+kedalaman+potong+0.3+mm.+Demikian+juga+pengaruh+dari+variasi+parameter+yang+digunakan.+Semakin+tinggi+kecepatan+putar+pahat+(Vt)%2C+kecepatan+putar+benda+kerja+(Vw)+serta+gerak+makan+(f)+maka+keausan+semakin+meningkat.+Progres+aus+pahat+putar+relatif+cepat+di+awal+pemotongan+diikuti+pertumbuhan+linier+yang+setara+dengan+bertambahnya+waktu+pemotongan+dan+keausan+terlihat+disisi+pahat+potong.%0D%0AKata+Kunci++%3A+Keausan%2C+insert+carbide%2C+magnesium+AZ31%2C+pahat+potong+berputar%2C+udara+dingin+bertekanan.%0D%0A%0D%0A%0D%0A%0D%0Aabstract%0D%0A%0D%0AMagnesium+alloy+is+one+of+the+materials+that+worldwide+used+in+the+manufacturing+industry+because+of+its+light+weight%2C+corrosion+resistance+and+a+good+thermal+conductivity.+Nevertheless%2C+magnesium+is+also+known+as+a+metal+material+that+has+a+low+melting+point+so+easy+to+burned.+Cutting+high+temperature+considered+harmful+because+it+can+cause+faster+wear+tool%2C+so+the+efficiency+of+the+machining+process+decreases+and+increased+production+costs.+One+method+to+decrease+the+cutting+temperature+by+using+a+rotary+cutting+tool%2C+which+the+tool+will+be+colling+during+the+period+of+rotatian+without+cutting.+The+purpose+of+this+study+is+to+obtain+the+value+of+rotary+cutting+tool+wear+and+implement+methods+of+rotary+cutting+tool+and+air+cooling+to+minimize+tool+wear.+Machining+using+a+tool+insert+carbide+diameter+of+16+mm+and+magnesium+AZ31+and+air+cooling+pressure+6+bar+on+the+parameters+of+the+speed+of+the+workpiece+(VW)+80%2C+120%2C+180+m%2Fmin%2C+feed+rate+of+(f)+0.10%2C+0.15%2C+0.20+mm%2Frev%2C+cutting+speed+of+rotary+tool+(Vt)+25%2C+50%2C+75+mm%2Fmin%2C+and+depth+of+cut+0.3+mm.+The+measurement+results+wear+using+USB+microscope+obtained+value+of+the+wear+minimum+of+0.286+mm+with+average+wear+rate+of+5.6%25+on+the+workpiece+speed+(VW)+80+m%2Fmin+on+the+feed+rate+of+0.1+mm%2Frev+with+a+cutting+speed+of+rotary+tool+(Vt)+of+50+m%2Fmin+and+depth+of+cut+0.3+mm+and+the+value+wear+maximum+of+0.448+mm+with+average+wear+rate+of+13.5%25+on+the+workpiece+speed+(Vw)+160+m%2Fmin+on+the+feed+rate+0.15+mm%2Frev+with+a+cutting+speed+of+rotary+tool+(Vt)+75+m%2Fmin+and+depth+of+cut+0.3+mm.+Likewise%2C+the+effect+of+variations+in+the+parameters+used.+The+higher+cutting+speed+of+rotary+tool+(Vt)%2C+workpiece+speed+(Vw)+and+feed+rate+(f)+the+wear+increases.+The+wear+progression++is+relatively+faster+at+the+beginning+of+cutting+followed+by+an+equivalent+linear+progress+with+increasing+time+of+cutting+and+wear+observed+on++the+flank+wear.%0D%0AKeywords%3A++wear%2C+insert+carbide%2C+magnesium+AZ31%2C+a+rotating+cutting+tool%2C+cooling+air+pressure.&rft.publisher=UNIVERSITAS+LAMPUNG&rft.date=2017-09-14&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28606%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28606%2F15%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F28606%2F16%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++DHIKA+ARIFI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