?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+PELUMASAN+TERHADAP+NILAI+KEKASARAN+PERMUKAAN%0D%0AMAGNESIUM+AZ31+PADAPEMESINAN+FRAIS+DAN+METODE+PELUMASAN%0D%0ABERKUANTITAS+MINIMUM+(MQL)&rft.creator=ROBBY+SAPUTRA+%2C+1115021075&rft.subject=Teknik+mesin+dan+mesin&rft.description=Magnesium+merupakan+salah+satu+bahan+yang+paling+banyak+digunakan+seperti+pada%0D%0Akomponen+otomotif%2C+sport+dan+elektronik%2C+karena+memiliki+sifat+yang+ringan+dan%0D%0Atahan+terhadap+korosi.+Namun+magnesium+dikenal+sebagai+bahan+logam+yang+mudah%0D%0Aterbakar%2C+karena+memiliki+titik+nyala+yang+rendah.+Sehingga+pada+proses%0D%0Apemesinannya+harus+menggunakan+cairan+pendingin+untuk+menurunkan+suhu%0D%0Apemotongan.+Permasalahan+dalam+penelitian+ini+adalah+bagaimana+pengaruh%0D%0APelumasan+Terhadap+Nilai+Kekasaran+Permukaan+Magnesium+AZ31+Padapemesinan%0D%0AFrais+Dan+Metode+Pelumasan+Berkuantitas+Minimum+(MQL).+Tujuan+penelitian+ini%0D%0Auntuk+mendapatkan+pengaruh+penambahan+pelumas+terhadap+nilai+kekasran%0D%0Apermukaan.+Penelitian+ini+menggunakan+beberapa+jenis+pelumas+seperti+synthetic+oil%2C%0D%0Akedelai%2C+dan+kelapa+sawit+yang+akan+dibandingkan+tanpa+menggunakan+pelumas.%0D%0AHasil+pengujian+pemesinan+frais+untuk+mendapatkan+nilai+kekasaran+permukaan%0D%0Amaterial+magnesium+AZ31+pada+parameter+kecepatan+potong+pahat+(Vc)+31%2C4%2C+40%2C82%2C%0D%0Adan+50%2C24+m%2Fmin%2C+gerak+makan+(f)+0%2C15+mm%2Frev%2C+dan+kedalaman+potong+1+mm%0D%0Amenggunakan+pahat+end+mill+berdiameter+10+mm.+Kemudian+dilakukan+uji+kekasaran%0D%0Apada+permukaan+benda+kerja+tersebut%2C+setelah+itu+data-data+yang+diperoleh+dilakukan%0D%0Aanalisa.+Hasil+penelitian+menunjukkan+bahwa+nilai+kekasaran+minimum+1%2C147+%CE%BCm%0D%0Adicapai+dengan+menggunakan+minyak+kelapa+sawit+dimana+hasil+tersebut+lebih+rendah%0D%0Adibandingkan+dengan+nilai+kekasaran+maksimum+5%2C925+%CE%BCm.+Pelumasan+menggunakan%0D%0Aminyak+synthetic+oil+dan+minyak+kedelai+pada+pemesinan+CNC+frais+ini+mengalami%0D%0Akegagalan+dalam+mendinginkan+dan+melumasi+karena+partikel+fluida+tidak+mencapai%0D%0Azona+pemotongan+dimana+pendinginan+diperlukan%2C+melaikan+menyebar+di+sekitar+area%0D%0Apahat+dan+benda+kerja.%0D%0AKata+kunci+%3A+Magnesium+AZ31%2C+minimum+quantity+lubrication+(MQL)%2C+kekasaran%0D%0Apermukaan%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AMagnesium+is+one+of+the+most+widely+used+materials+such+as+automotive%2C+sport+and%0D%0Aelectronic+components%2C+because+it+has+a+lightweight+and+corrosion-resistant+properties.%0D%0AHowever%2C+magnesium+is+known+as+a+combustible+metal+material%2C+because+it+has+a+low+flash%0D%0Apoint.+So+in+the+machining+process+must+use+the+coolant+to+reduce+the+cutting+temperature.%0D%0AThe+problem+in+this+research+is+how+the+effect+of+Lubrication+Against+Surface+Magnesium%0D%0ARoughness+Value+AZ31+on+Frais+Machine+and+Minimum+Quantity+Lubrication+Method%0D%0A(MQL).+The+purpose+of+this+research+is+to+get+the+influence+of+the+addition+of+lubricant+to%0D%0Asurface+kekasran+value.+This+study+uses+several+types+of+lubricants+such+as+synthetic+oil%2C%0D%0Asoybeans%2C+and+palm+oil+to+be+compared+without+using+lubricants.+The+result+of+frais%0D%0Amachining+test+to+obtain+the+surface+roughness+value+of+AZ31+magnesium+material+on%0D%0Acutting+speed+(Vc)+31%2C4%2C40%2C82+and+50%2C24+m+%2F+min%2C+feeding+(f)+0%2C15+mm+%2F+rev%2C+and+depth+cut+1%0D%0Amm+using+chisel+end+mill+diameter+10+mm.+Then+performed+roughness+test+on+the+surface+of%0D%0Athe+workpiece%2C+after+which+the+data+obtained+is+analyzed.+The+results+showed+that+a%0D%0Aminimum+roughness+value+of+1.147+%CE%BCm+was+achieved+using+palm+oil+where+the+results+were%0D%0Alower+than+the+maximum+roughness+of+5%2C925+%CE%BCm.+Lubrication+using+synthetic+oil+and%0D%0Asoybean+oil+on+CNC+machining+frais+fails+to+cool+and+lubricate+because+the+fluid+particles%0D%0Ado+not+reach+the+cutting+zone+where+cooling+is+required%2C+the+spread+spreads+around+the%0D%0Achisel+area+and+workpiece.%0D%0AKeywords%3A+Magnesium+AZ31%2C+minimum+quantity+lubrication+(MQL)%2C+surface+roughness&rft.publisher=FAKULTAS+TEKNIK+&rft.date=2017-11-29&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29255%2F19%2FABSTRACT%2520%2528ABSTRAK%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29255%2F21%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F29255%2F20%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ROBBY+SAPUTRA+%2C+1115021075++(2017)+PENGARUH+PELUMASAN+TERHADAP+NILAI+KEKASARAN+PERMUKAAN+MAGNESIUM+AZ31+PADAPEMESINAN+FRAIS+DAN+METODE+PELUMASAN+BERKUANTITAS+MINIMUM+(MQL).++FAKULTAS+TEKNIK+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F29255%2F