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Teknik Produksi Mesin Industri(Jilid 2).edt.indd - Bursa Open Source

Teknik Produksi Mesin Industri(Jilid 2).edt.indd - Bursa Open Source

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Gambar 56. Penentuan titik koordinat paron bola<br />

2.7 Kecepatan Potong dan Kecepatan Asutan<br />

2.7.1 Kecepatan Potong (Vc)<br />

Vc = (πππππ × d × n) / 1000 (m/menit)<br />

d = Diameter Benda Kerja<br />

n = Jumlah putaran/menit (rpm)<br />

π = Phi = 3,14<br />

Vc Dipengaruhi oleh:<br />

a) Bahan<br />

b) Jenis alat potong<br />

c) Kecepatan penyayatan/asutan<br />

d) Kedalaman penyayatan<br />

2.7.2 Kecepatan Asutan (F)<br />

Kecp. Asutan (F)<br />

F (mm/menit) = n (put/menit) × f (mm/put)<br />

Di mana: n = (Vc × 1000)/π × d (put/menit)<br />

F = dalam mm/putaran atau mm/menit<br />

479

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