DAFTAR ISI
Halaman HALAMAN JUDUL ...............................................................................
i
LEMBAR PENGESAHAN .....................................................................
ii
KATA PENGANTAR ..............................................................................
iii
DAFTAR ISI ............................................................................................
v
DAFTAR TABEL ....................................................................................
ix
DAFTAR GAMBAR ...............................................................................
x
DAFTAR LAMPIRAN ............................................................................
xii
BAB I
BAB II
BAB III
PENDAHULUAN 1.1 Latar Belakang Masalah ..............................................
I-1
1.2 Perumusan Masalah ....................................................
I-2
1.3 Tujuan Umum .............................................................
I-2
1.4 Tujuan Khusus ............................................................
I-2
1.5 Sistematika Penulisan ..................................................
I-2
MESIN BUBUT 2.1 Pengertian Mesin Bubut .............................................
II-1
2.2 Bagian-bagian Mesin Bubut .......................................
II-1
2.3 Cara Kerja Mesin Bubut .............................................
II-2
2.4 Pekerjaan yang Dapat Dikerjakan Mesin Bubut ..........
II-2
2.5 Membubut Tirus .........................................................
II-3
2.6 Membubut Ulir ..........................................................
II-6
2.7 Prinsup Pahat dan Perpahatan .....................................
II-7
2.8 Macam Pahat dan Kegunaannya .................................
II-8
2.9 Bentuk Pengasahan Pahat ...........................................
II-9
2.10 Kecepatan Potong ......................................................
II-9
MESIN FRAIS 3.1 Pengertian Mesin Frais ................................................
III-1
3.2 Bagian-bagian Mesin Frais ..........................................
III-2
v
vi
3.3 Macam-macam Pisau ..................................................
III-3
3.4 Kepala Pembagi ..........................................................
III-4
3.4.1 Cara Kerja Kepala Pembagi ...............................
IV-5
3.4.2 Memasang Benda Kerja Kepala Pembagi ...........
IV-6
3.4.3 Memasang Benda Kerja pada Penjepit dengan
BAB
IV
Tiga Cekam ........................................................
IV-7
3.4.4 Cara Menghitung Roda Gigi ...............................
IV-3
4.5.1 Cara Kerja Kepala Pembagi ................................
IV-8
3.5 Perhitungan Deviding Head .........................................
III-9
MESIN SEKRAP 4.1 Pengertian Mesin Sekrap ............................................
IV-1
4.2 Prinsip Kerja Mesin Sekrap .........................................
IV-2
4.3 Bagian Mesin Sekrap .................................................
IV-2
4.4 Jenis-jenis Mesin Sekrap ............................................
IV-3
4.4.1 Mesin Sekrap Datar atau Horizontal ...................
IV-3
4.4.2 Mesin Sekrap Vertikal ........................................
IV-4
4.4.3 Mesin Planner ....................................................
IV-4
4.5 Mekanisme Kerja Mesin Sekrap .................................
IV-5
4.6 Proses Sekrap .............................................................
IV-6
4.7 Mengatur Panjang dan Kedudukan Langkah................
IV-7
4.8 Kecepatan Langkah .....................................................
IV-8
4.9 Sistematik Satuan Metrik ...........................................
IV-9
4.9.1 Sistem Satuan Inchi ..........................................
IV-9
4.10 Pahat Sekrap .............................................................. IV-11 4.11 Macam-macam Bentuk Pahat ..................................... IV-11 4.12 Cara Memasang Pahat ................................................ IV-12 BAB
V
MESIN MILLING DAN DRILLING 5.1 Definisi Mesin Milling dan Drilling ...........................
V-1
5.2 Prinsip Kerja Mesin Milling dan Drilling ...................
V-2
5.3 Cara Pengoperasian Mesin Milling dan Drilling .........
V-3
5.4. Jenis-jenis Mata Bor Mesin Milling dan Drilling ........
V-3
vii
5.5 Alat Pemotong ..........................................................
V-5
5.5.1 Keuntungan Menggunakan Mata Bor ................
V-5
5.5.2 Sudut-sudut Mata Bor........................................
V-5
5.5.3 Tipe Mata Bor ..................................................
V-6
5.6
Kecepatan Potong .....................................................
V-6
5.7
Proses Pengeboran ....................................................
V-7
5.8
Perkakas Pengebor ....................................................
V-8
5.9
Alat-alat Keselamatan dalam Pengoperasian Mesin Milling dan Drillling .................................................
BAB
VI
V-9
RAGAM MESIN 6.1
Mesin Potong Besi dan Kayu ....................................
VI-1
6.2
Prinsip Kerja Mesin Potong atau Kayu ......................
VI-1
6.2.1 Mesin Potong Besi ...........................................
VI-1
6.2.2 Mesin Potong Kayu .........................................
VI-2
Mesin Jig Saw ...........................................................
VI-3
6.3.1 Kelebihan dan Kekurangan Mesin Jig saw........
VI-4
6.4 Mesin Gerinda ............................................................
VI-5
6.4.1 Bagian-bagian Mesin Gerinda ..........................
VI-6
6.2.2 Macam-macam Batu Gerinda ..........................
VI-6
6.5
Mesin Serut ..............................................................
VI-7
6.6
Mesin Bor Tangan .....................................................
VI-8
6.6.1 Pengoperasian Mesin Bor Tangan ....................
VI-9
6.7 Mesin Kompresor ......................................................
VI-9
6.3
6.8 Mesin Las ................................................................. VI-12 6.8.1 Prinsip-prinsip Las Listrik ............................... VI-11 6.8.2 Las Listrik dengan Elektroda karbon ................ VI-12 6.8.3 Las Listrik MIG ............................................... VI-13 BAB
VII
PROSES KERJA 7.1
Produk Asbak ............................................................
VII-1
7.2
Alat-alat yang Digunakan ..........................................
VII-1
7.3
Bahan yang Digunakan ..............................................
VII-2
viii
BAB
7.4
Proses Pembuatan Asbak............................................
VII-2
7.5
Proses Penyelesain (finishing) ....................................
VII-3
VIII KESIMPULAN DAN SARAN 8.3
Kesimpulan ............................................................... VIII-1 8.8.1 Tujuan Umum ................................................. VIII-1 8.8.2 Tujuan Khusus ................................................ VIII-1
8.2
Saran ......................................................................... VIII-2
DAFTAR PUSTAKA LAMPIRAN
ix
DAFTAR TABEL
Halaman Tabel
2.1 Besar Sudut X ........................................................................
II-5
Tabel
3.1 Set Cutter Frais Gigi ..............................................................
III-9
Tabel
4.1 Daftar Cutting Speed (Cs) Untuk Pahat HSS .......................... IV-10
Tabel
5.1 Perbedaan Drilling dan Borring .............................................
V-4
x
DAFTAR GAMBAR
Halaman Gambar 2.1
Mesin Bubut ........................................................................
II-1
Gambar 2.2
Hasil-hasil dari Pembuatan...................................................
II-3
Gambar 2.3
Pepmbubutan tirus dengan menggunakan perlengkapan ......
II-4
Gambar 2.4
Pembubutan Tirus Dengan Memutar Eretan Atas ................
II-5
Gambar 2.5
Urutan Pembubutan Ulir .....................................................
II-6
Gambar 2.6
Macam-macam Bentuk Pahat Bubut ....................................
II-8
Gambar 2.7
Bentuk Pengasahan Pahat Bubut ..........................................
II-8
Gambar 3.1
Bentuk-bentuk Hasil Frais ...................................................
III-1
Gambar 3.2
Mesin Frais .........................................................................
III-2
Gambar 3.3
Macam-macam Pisau Frais .................................................
III-4
Gambar 3.4
Bagian dari Kepala Pembagi ...............................................
III-6
Gambar 3.5
Cara Memasang Benda Kerja pada Kepala Frais .................
III-7
Gambar 3.6
Pemasangan Benda Kerja pada Cekam Universal ................
III-7
Gambar 3.7
Roda Gigi ...........................................................................
III-8
Gambar 3.8
Transmisi Roda Gigi Casing dalam Kepala Pembagi ........... III-10
Gambar 4.1
Mesin Sekrap ......................................................................
IV-1
Gambar 4.2
Mesin Sekrap dan Bagian-bagiannya ...................................
IV-2
Gambar 4.3
Mesin Sekrap Datar atau Horizontal ....................................
IV-3
Gambar 4.4
Mesin Sekrap Vertikal ........................................................
IV-4
Gambar 4.5
Mesin Sekrap Eretan (Planner) ...........................................
IV-5
Gambar 4.6
Mekanisme Mesin Sekrap ...................................................
IV-5
Gambar 4.7
Menghitung Langkah ..........................................................
IV-7
Gambar 4.8
Kecepatan Langkah .............................................................
IV-8
Gambar 4.9
Sudut-sudut pada Pahat ...................................................... IV-11
Gambar 4.10 Pahat Sekrap ....................................................................... IV-12 Gambar 4.11 Pahat Universal .................................................................. IV-12 Gambar 5.1
Mesin Milling dan Drilling .................................................
V-2
xi
Gambar 5.2
Jenis-jenis pahat Pengebor .................................................
V-9
Gambar 6.1
Mesin Potong Besi .............................................................
VI-1
Gambar 6.2
Mesin Potong Kayu.............................................................
VI-2
Gambar 6.3
Mesin Jig Saw.....................................................................
VI-3
Gambar 6.4
Mesin Gerinda ...................................................................
VI-5
Gambar 6.5
Mesin Serut ........................................................................
VI-7
Gambar 6.6
Mesin Bor Tangan .............................................................
VI-8
Gambar 6.7
Mesin Kompresor .............................................................. VI-10
Gambar 6.8
Mesin Las Listrik ............................................................... VI-11
Gambar 6.9
Las Listrik dengan Elektroda Karbon ................................. VI-12
Gambar 6.10 Proses Las Listrik TIG ....................................................... VI-13 Gambar 6.11 Proses Las Listrik MIG ...................................................... VI-13 Gambar 7.1
Gambar Produk Asbak 2 Dimensi .....................................
VII-4
Gambar 7.2
Gambar Produk Asbak 3 Dimensi .....................................
VII-8
xii
DAFTAR RUMUS
Halaman Rumus
2.1 Membuat Tirus Luar Dalam .................................................
II-4
Rumus
2.2 Kecepatan potong ................................................................
II-9
Rumus
2.3 Menggunakan Tabel Kecepatan potong 1 ............................
II-10
Rumus
2.4 Menggunakan Tabel Kecepatan potong 2 ............................
II-10
Rumus
3.1 Membuat Segi Banyak Beraturan ........................................
III-6
Rumus
5.1 Cutting Speed ......................................................................
V-7
Rumus
6.1 Satuan Panas Joule atau Kalori ............................................ VI-12
xiii
DAFTAR LAMPIRAN
Foto Copy KRS, KTM dan Kartu Praktikum ATA 2010/2011 ...................
L-1
Laporan Pendahuluan ................................................................................
L-2
Test Pendahuluan .......................................................................................
L-3
Laporan Akhit Praktikum ...........................................................................
L-4
Foto Produk Akhir .....................................................................................
L-5
Foto Mesin-mesin yang Digunakan dalam Praktikum.................................
L-6
Lembar Asistensi .......................................................................................
L-7
Biodata Praktikum .....................................................................................
L-8
