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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 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

BAB II 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

BAB III MESIN FRAIS

3.1 Pengertian Mesin Frais ................................................ III-1

3.2 Bagian-bagian Mesin Frais .......................................... III-2

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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

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

BAB IV 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

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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 ................................................. V-9

BAB VI 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

6.3 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

6.8 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

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7.4 Proses Pembuatan Asbak ............................................ VII-2

7.5 Proses Penyelesain (finishing) .................................... VII-3

BAB 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

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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

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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

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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

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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

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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