?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KARAKTERISTIK+KEKASARAN+PERMUKAAN+PEMESINAN+BUBUT%0D%0AMATERIAL+BAJA+ST-37+DENGAN+VARIASI+PARAMETER%0D%0A%0D%0APEMESINAN+DAN+GEOMETRI+PAHAT&rft.creator=OKI+BAGUS+HARTANTO%2C+1315021049&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Low+carbon+steel+machining+is+often+done+in+manufacturing+processes%2C+especially%0D%0Ain+the+process+of+making+engine+components.+The+process+of+cutting+low+carbon%0D%0Asteel+(ST-37)%2C+generally+use+High+Speed+Steel+(HSS)+chisel+for+it+has+high+enough%0D%0Aviolence%2C+relatively+cheap+prices+and+tool+geometries+that+can+be+formed.+In%0D%0Amachining%2C+tool+geometry+influences+the+process+of+cutting+material+because+this%0D%0Adetermines+the+quality+of+the+product%2C+such+as+the+roughnessof+the+surface.+The%0D%0Apurpose+of+this+study+is+to+obtain+surface+roughness+with+variations+in+the+chisel%0D%0Ageometry+and+nose+radius+and+to+obtain+the+optimal+surface+roughness.+This+study%0D%0Aused+an+experimental+method+using+ST-37+steel+and+High+Speed+Steel+chisel.+The%0D%0Achisel+geometry+variation+used+is+side+rake+angle+of+12o%0D%0A%0D%0A%2C+15o+and+18o%0D%0A%0D%0A%2C+side+cutting%0D%0A%0D%0Aedge+angle+of+85o%0D%0A%0D%0A%2C+80o+and+75o%0D%0A%0D%0A%2C+and+nose+radius+of+0+mm%2C+0%2C4+mm+and+0%2C8+mm.%0D%0ASurface+roughness+measurement+is+using+Surface+Roughness+Tester.+Analysis+of%0D%0Athe+effect+of+chisel+geometry+on+surface+roughness+was+carried+out+by+the+Taguchi%0D%0Amethod+using+L18+and+Anova.+The+machining+parameters+used+in+this+study+were%0D%0Acutting+depth+of+1+mm+and+2+mm%2C+spindle+rotation+speed+of+185+rpm%2C+425+rpm+and%0D%0A624+rpm%2C+and+feeding+of+0.05+mm%2Frev%2C+0.075+mm%2Frev+and+0.1+mm%2Frev.+The+results%0D%0Aobtained+from+the+Taguchi+and+Anova+analyzes+are+parameters+that+have+a%0D%0Asignificant+effect+where+nose+radius+(R)+with+a+contribution+of+52.38+%25+and%0D%0Afeeding+(f)+with+a+contribution+of+24.70+%25.+The+optimum+surface+roughness+in+this%0D%0Astudy+was+0.512778+%CE%BCm+with+cutting+depth+of+(a)+1+mm%2C+spindle+rotation+speed+(n)%0D%0A625+rpm%2C+feeding+(f)+0.05+mm%2Frev%2C+nose+radius+(R)+0.8+mm%2C+side+rake+angle+(%CE%B3)+12o%0D%0A%2C+and+side+cutting+edge+angle+(Kr)+85o%0D%0A.+Keywords%3A+ST-37%2C+High+Speed+Steel+chisel%2C+chisel%E2%80%99s+geometry%2C+Taguchi%2C+surface%0D%0A%0D%0Aroughness.%0D%0APemesinan+baja+karbon+rendah+sering+dilakukan+dalam+proses+manufaktur%2C%0D%0Akhususnya+dalam+proses+pembuatan+komponen+mesin.+Proses+pemotongan+baja%0D%0Akarbon+rendah+(ST-37)%2C+umumnya+menggunakan+pahat+High+Speed+Steel+(HSS)%0D%0Akarena+memiliki+kekerasan+yang+cukup+tinggi%2C+harga+relatif+murah+dan+geometri%0D%0Apahat+dapat+dibentuk.+Dalam+pemesinan%2C+geometri+pahat+berpengaruh+terhadap%0D%0Aproses+pemotongan+bahan%2C+karena+menentukan+kualitas+produk.+Kualitas+produk%0D%0Ayang+dihasilkan+seperti+kekasaran+permukaan.+Tujuan+dari+penelitian+ini+adalah%0D%0Amendapatkan+kekasaran+permukaan+dengan+variasi+geometri+pahat+dan+nose%0D%0Aradius+serta+memperoleh+kekasaran+permukaan+yang+optimal.+Penelitian+ini%0D%0Amenggunakan+metode+eksperimental+dengan+menggunakan+baja+ST-37+dan+pahat%0D%0AHigh+Speed+Steel.+Variasi+geometri+pahat+yang+digunakan+yaitu+side+rake+angle%0D%0A12o%0D%0A%2C+15o+dan+18o%0D%0A%0D%0A%2C+side+cutting+edge+angle+85o%0D%0A%0D%0A%2C+80o+dan+75o+serta+nose+radius+0+mm%2C%0D%0A0%2C4+mm+dan+0%2C8+mm.+Pengukuran+kekasaran+permukaan+menggunakan+Surface%0D%0ARoughness+Tester.+Analisis+pengaruh+geometri+pahat+terhadap+kekasaran%0D%0Apermukaan+dilakukan+dengan+metode+Taguchi+menggunakan+L18+dan+Anova.%0D%0AParameter+pemesinan+yang+digunakan+dalam+penelitian+ini+yaitu+kedalaman%0D%0Apemotongan+1+mm+dan+2+mm%2C+kecepatan+putaran+spindle+185+rpm%2C+425+rpm+dan%0D%0A624+rpm+serta+feeding+0%2C05+mm%2Frev%2C+0%2C075+mm%2Frev+dan+0%2C1+mm%2Frev.+Hasil+yang%0D%0Adidapatkan+dari+analisis+Taguchi+dan+Anova+adalah+parameter+yang+memiliki%0D%0Apengaruh+signifikan+yaitu+nose+radius+(R)+dengan+kontribusi+52%2C38%25+dan+feeding%0D%0A(f)+dengan+kontribusi+24%2C70.+Kekasaran+permukaan+yang+optimum+dalam%0D%0Apenelitian+ini+yaitu+0%2C512778+%CE%BCm+dengan+kedalaman+pemotongan+(a)+1+mm%2C%0D%0Akecepatan+putaran+spindle+(n)+625+rpm%2C+feeding+(f)+0%2C05+mm%2Frev%2C+nose+radius+(R)%0D%0A0%2C8+mm%2C+side+rake+angle+(%CE%B3)+12o%0D%0A%0D%0A%2C+dan+side+cutting+edge+angle+(Kr)+85o%0D%0A%0D%0A.+Kata+Kunci%3A+ST-37%2C+Pahat+High+Speed+Steel%2C+Geometri+pahat%2C+Taguchi%2C+Kekasaran%0D%0Apermukaan.&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%2F57043%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57043%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57043%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++OKI+BAGUS+HARTANTO%2C+1315021049++(2019)+KARAKTERISTIK+KEKASARAN+PERMUKAAN+PEMESINAN+BUBUT+MATERIAL+BAJA+ST-37+DENGAN+VARIASI+PARAMETER+PEMESINAN+DAN+GEOMETRI+PAHAT.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57043%2F