Buku Teknik Las SMAW Kelas 10 SMK - Sukaini

Materi Teknik Las SMAW

HALAMAN FRANCIS ................................ ................................ ................................ ..................... II
KATA PENGANTAR ................................ ................................ ................................ .................... IV
DAFTAR ISI ................................ ................................ ................................ ................................ . V
PETA KONSEP MATA PEL AJARAN TEKNIK LAS SMAW XI S EMESTER 2 ................................ ......... IX
GLOSARIUM ................................ ................................ ................................ ................................ X

BAB I PENDAHULUAN ................................ ................................ ................................ .................. 1
1. DESKRIPSI ................................ ................................ ................................ ........................... 1
2. PRASYARAT ................................ ................................ ................................ ........................ 1
3. PETUNJUK PENGGUNAAN ................................ ................................ ................................ ... 2
4. TUJUAN AKHIR ................................ ................................ ................................ .................... 2
5. KOMPETENSI INTI DAN KOMPETENSI DASAR ................................ ................................ ...... 3
6. CEK KEMAM PUAN AWAL ................................ ................................ ................................ ..... 5

BAB II MATERI PEMBE LAJARAN ................................ ................................ ................................ .. 7
1. TEKNIK PENGELASAN SMAW PADA POSISI DI BAWAH TANGAN (1F & 1G) ..................... 7
A. Deskripsi Pembelajaran ................................ ................................ .............................. 7
B. Kegiatan Belajar ................................ ................................ ................................ .......... 8

Kegiatan Belajar 1 : Persiapan Sambungan Dan Kampuh Las ................................ .... 8
1.1 Tujuan Pembelajaran ................................ ................................ ................................ ............. 8
1.2 Uraian Materi ................................ ................................ ................................ ........................ 8
1.3 Rangkuman ................................ ................................ ................................ .......................... 17
1.4 Tugas ................................ ................................ ................................ ................................ ... 18
1.5 Tes Formatif ................................ ................................ ................................ ......................... 24
1.6 Lembar Jawaban Tes Formatif ................................ ................................ ............................. 24
1.7 Lembar Kerja Peserta didik ................................ ................................ ................................ .. 25

Kegiatan Belajar 2 : Persiapan Penyetelan Mesi n Las ................................ ................. 26
2.1 Tujuan Pembelajaran ................................ ................................ ................................ ........... 26
2.2 Uraian Materi ................................ ................................ ................................ ...................... 26
2.3 Rangkuman ................................ ................................ ................................ .......................... 34
2.4 Tugas ................................ ................................ ................................ ................................ ... 35
2.5 Tes Formatif ................................ ................................ ................................ ......................... 37
2.6 Lembar Jawaban Tes Formatif ................................ ................................ ............................. 37
2.7 Lembar Kerja Peserta didik ................................ ................................ ................................ .. 38

Kegiatan Belajar 3 : Pemilihan dan Penyiapan E lektroda ................................ ............ 39
3.1 Tujuan Pembelajaran ................................ ................................ ................................ ........... 39
3.2 Uraian Materi ................................ ................................ ................................ ...................... 39
3.3 Rangkuman ................................ ................................ ................................ .......................... 59
3.4 Tugas ................................ ................................ ................................ ................................ ... 60
3.5 Tes Formatif ................................ ................................ ................................ ......................... 60
3.6 Lembar Jawaban Tes Formatif ................................ ................................ ............................. 61
3.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ .. 61

Kegiatan Belajar 4 : P rosedur Pengelasan ................................ ................................ ..... 62
4.1 Tujuan Pembelajaran ................................ ................................ ................................ ........... 62
4.2 Uraian Materi ................................ ................................ ................................ ...................... 62
4.3 Rangkuman ................................ ................................ ................................ .......................... 66
4.4 Tugas ................................ ................................ ................................ ................................ ... 67
4.5 Tes Formatif ................................ ................................ ................................ ......................... 69
4.6 Lembar Jawaban Tes Formatif ................................ ................................ ............................. 69
4.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ .. 70

Kegiatan Belajar 5 : Teknik Pengelasan Rigi -rigi ................................ ........................... 71
5.1 Tujuan Pembe lajaran : ................................ ................................ ................................ ......... 71
5.2 Uraian Materi ................................ ................................ ................................ ...................... 71
5.3 Rangkuman ................................ ................................ ................................ .......................... 77
5.4 Tugas ................................ ................................ ................................ ................................ ... 78
5.5. Tes Formatif ................................ ................................ ................................ ......................... 78
5.6 Lem bar penilaian tes Formatif ................................ ................................ ............................ 79
5.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ .. 80

Kegiatan Belajar 6 : Teknik Pengelasan Penebalan ................................ ..................... 82
6.1 Tujuan Pembelajaran ................................ ................................ ................................ ........... 82
6.2 Uraian Materi ................................ ................................ ................................ ...................... 82
6.3 Rangkuman ................................ ................................ ................................ .......................... 90
6.4 Tugas ................................ ................................ ................................ ................................ ... 90
6.5 Tes Formatif ................................ ................................ ................................ ......................... 90
6.6 Lembar penilaian Formatif ................................ ................................ ................................ .. 91
6.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ .. 92

Kegiatan Belajar 7 : Teknik Pengelasan Fillet 1F Sambungan “T” ............................. 94
7.1 Tujuan Pembelajaran ................................ ................................ ................................ ........... 94
7.2 Uraian Materi ................................ ................................ ................................ ...................... 94
7.3 Rangkuman ................................ ................................ ................................ .......................... 99
7.4 Tugas ................................ ................................ ................................ ................................ ... 99
7.5 Tes Formatif ................................ ................................ ................................ ......................... 99
7.6 Lembar penilaian tes Formatif ................................ ................................ ........................... 100
7.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 101

Kegiatan Belajar 8 : Teknik PengelasanFillet 1F Sambungan sudut luar ................ 103
8.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 103
8.2 Uraian Materi ................................ ................................ ................................ .................... 103
8.3 Rangkuman ................................ ................................ ................................ ........................ 108
8.4 Tugas ................................ ................................ ................................ ................................ . 108
8.5 Tes Formatif ................................ ................................ ................................ ....................... 108
8.6 Lembar Jawaban tes Formatif ................................ ................................ ............................ 109
8.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 110

Belajar 9 : Teknik Pengelasan Groove/1G Sambungan Kampuh “V” ...... 112
9.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 112
9.2 Uraian Materi ................................ ................................ ................................ .................... 112
9.3 Rangkuman ................................ ................................ ................................ ........................ 119
9.4 Tugas ................................ ................................ ................................ ................................ . 119
9.5 Tes Formatif ................................ ................................ ................................ ....................... 119
9.6 Lembar Peilaian tes Formatif ................................ ................................ ............................. 120
9.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 121
2.T EKNIK PENGELASAN SMAW POSISI MENDATAR HORISONTAL (2F/2G) ......................... 123
A. Deskripsi Pembelajaran ................................ ................................ .......................... 123
B. Kegiatan Belajar ................................ ................................ ................................ ...... 123

Kegiatan Belajar 1 : Persiapan Sambungan dan Kampuh las (review) ................... 123
1.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 123
1.2 Uraian Materi ................................ ................................ ................................ .................... 123
1.3 Rangkuman ................................ ................................ ................................ ........................ 130
1.4 Tugas ................................ ................................ ................................ ................................ . 131
1.5 Tes Formatif ................................ ................................ ................................ ....................... 137
1.6 Lembar Jawaban Tes Formatif ................................ ................................ ........................... 137
1.7 Lembar Kerja Peserta didik ................................ ................................ ................................ 138

Kegiatan Belajar 2 : Persiapan Penyetelan Mesin Las (review) ................................ 139
2.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 139
2.2 Uraian Materi ................................ ................................ ................................ .................... 139
2.3 Rangkuman ................................ ................................ ................................ ........................ 148
2.4 Tugas ................................ ................................ ................................ ................................ . 148
2.5 Tes Formatif ................................ ................................ ................................ ....................... 150
2.6 Lemba r Jawaban Tes Formatif ................................ ................................ ........................... 150
2.7 Lembar Kerja Peserta didik ................................ ................................ ................................ 151

Kegiatan Belajar 3 : Pemilihan dan Penyiapan Elektroda (review) ......................... 152
3.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 152
3.2 Uraian Materi ................................ ................................ ................................ .................... 152
3.3 Rangkuman ................................ ................................ ................................ ........................ 172
3.4 Tugas ................................ ................................ ................................ ................................ . 173
3.5 Tes Formatif ................................ ................................ ................................ ....................... 173
3.6 Lembar Jawaban Tes Formatif ................................ ................................ ........................... 174
3.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 175

Kegiatan Belajar 4 : Prosedur Pengelasan ................................ ................................ ... 176
4.1 Tujuan P embelajaran ................................ ................................ ................................ ......... 176
4.2 Uraian Materi ................................ ................................ ................................ .................... 176
4.3 Rangkuman ................................ ................................ ................................ ........................ 179
4.4 Tugas ................................ ................................ ................................ ................................ . 180
4.5 Tes Formatif ................................ ................................ ................................ ....................... 182
4.6 Lembar Jawaban Tes Formatif ................................ ................................ ........................... 182
4.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 183

Kegiatan Belajar 5 : Teknik Pengelasan Rigi -rigi Horisontal ................................ ...... 185
5.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 185
5.2 Uraian Materi ................................ ................................ ................................ .................... 185
5.3 Rangkuman ................................ ................................ ................................ ........................ 188
5.4 Tugas ................................ ................................ ................................ ................................ . 188
5.5 Tes Formatif ................................ ................................ ................................ ....................... 188
5.6 Lembar Jawaban tes Formatif ................................ ................................ ............................ 189
5.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 190

Kegiatan Belakar 6 : Teknik Pengelasan Fillet 2F ................................ ....................... 192
6.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 192
6.2 Uraian Materi ................................ ................................ ................................ .................... 192
6.3 Rangkuman ................................ ................................ ................................ ........................ 198
6.4 Tugas ................................ ................................ ................................ ................................ . 198
6.5 Tes Formatif ................................ ................................ ................................ ....................... 199
6.6 Lembar penilaian tes Formatif ................................ ................................ ........................... 200
6.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 201

Kegiatan Belajar 7 : Teknik Pengelasan Fillet 2F Sanbungan “T” 2 lapis 3 jalur ... 203
7.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 203
7.2 Uraian Materi ................................ ................................ ................................ .................... 203
7.3 Rangkuman ................................ ................................ ................................ ........................ 208
7.4 Tugas ................................ ................................ ................................ ................................ . 208
7.5 Tes Formatif ................................ ................................ ................................ ....................... 208
7.6 Lembar Penilaian tes Formatif ................................ ................................ ........................... 209
7.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 210

Kegiatan Belajar 8 dan 9 : Teknik Pengelasan groove 2G kampuh “V” ................... 212
8.1 Tujuan Pembelajaran ................................ ................................ ................................ ......... 212
8.2 Uraian Materi ................................ ................................ ................................ .................... 212
8.3 Rangkuman ................................ ................................ ................................ ........................ 216
8.4 Tugas ................................ ................................ ................................ ................................ . 216
8.5 Tes Formatif ................................ ................................ ................................ ....................... 216
8.6 Lembar penilaian tes Formatif ................................ ................................ ........................... 217
8.7 Lembar Kerja Peserta Didik ................................ ................................ ................................ 218

BAB III PENERAPAN ................................ ................................ ................................ ................. 220
A. ATTITUDE SKILLS ................................ ................................ ................................ ............. 220
B. KOGNITIF SKILLS ................................ ................................ ................................ ............. 220
C. PSIKOMOTORIK SKILLS ................................ ................................ ................................ .... 220
D. PRODUK /BENDA KERJA SESUAI K RITERIA STANDAR ................................ ....................... 220
DAFTAR PUSTAKA ................................ ................................ ................................ ................... 221