5 drilling machine d4
TRANSCRIPT
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DRILLING MACHINE
Semester 2
Bambang tjahjono, ST, MT
Mesin
polines
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Mesin bore
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Koordinat bore
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Holder twist drill
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Pemegang bore/drill
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Pemegang benda kerja
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Pengasahan twist drill
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Sudut potong
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Pengaruh Pengasahan
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Sudut pengasahan
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Cutting speeds
Vc = π D NVc = Kecepatan
potong material= (m/menit)
D = Diameter
drill/bore (m)N = Kecepatan
putar drill (rpm)
Feeding / Kecepatan pemakanan
F = 0,02. z. N
F = (mm/mnt)
Z = Jumlah mata
potong
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Perhitungan dalam feet
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Terimakasih
Parameter Val e
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3.82 is a constant derived from 12/pi
Parameter Value
Tool Diameter .500 in
NumFlutes 4
SFM 600 ft/min
IPR .005 in