Page 5 - E-Modul Teknik Pemesinan Bubut 1_2022

1. Alat pencekam/ pengikat benda kerja ........................................................................ 14

2. Alat pembawa ...................................................................................................................... 16

3. Alat penahan benda kerja................................................................................................ 17
4. Senter ..................................................................................................................................... 17

5. Taper attachment/ perlengkapan khusus tirus ...................................................... 18

B. Macam-macam pekerjaan pada pembubutan ....................................... 19
1. Pembubutan muka/ facing ............................................................................................. 19

2. Pembubutan lurus ............................................................................................................. 20

3. Pembubutan dalam/ boring ........................................................................................... 20
4. Pembubutan lubang/ drilling ......................................................................................... 21

5. Pembubutan alur/ grooving ........................................................................................... 21

6. Pembubutan ulir/ threading .......................................................................................... 22
7. Pembubutan profil/ oval .................................................................................................. 22

8. Pembubutan tirus/ taper ................................................................................................ 23

9. Pengkartelan/ kenurling .................................................................................................. 23
RANGKUMAN .......................................................................................... 25

LATIHAN SOAL ....................................................................................... 27

BAB 3 Parameter Proses Pembubutan ..................................................... 29

A. Kecepatan putaran mesin bubut ( Revolution Per Minute – Rpm ) ....... 30

B. Kecepatan potong ( Cutting speed- Cs ) ............................................... 30

1. Bahan yang akan dibubut ............................................................................................... 31
2. Bahan pahat ......................................................................................................................... 31

3. Kualitas bubutan ................................................................................................................ 32

C. Kedalaman potong (depth of cut) ........................................................ 33

D. Waktu pemakanan ( Feding -F ) – mm/menit ...................................... 33
1. Panjang bahan ..................................................................................................................... 34

2. Jumlah pembubutan ......................................................................................................... 34

3. Waktu pembubutan ........................................................................................................... 35
RANGKUMAN .......................................................................................... 37

LATIHAN SOAL ....................................................................................... 38

BAB 4 Alat Potong Mesin Bubut .............................................................. 40

A.Material / bahan pahat bubut .............................................................. 42

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