Laporan Kerja PraktekJurusan Teknik Mesin

Institut Teknologi Sepuluh Nopember

DAFTAR ISI

Halaman Judul iLembar Pengesahan iiKata Pengantar iiiDaftar Isi v

BAB I PENDAHULUAN....................................................……………………...11.1 Pendahuluan......................................................................................................21.2 Latar Belakang..................................................................................................21.3 Dasar Pemikiran................................................................................................21.4 Maksud dan Tujuan...........................................................................................3

1.4.1 Umum........................................................................................................31.4.2 Khusus.......................................................................................................4

1.5 Batasan Masalah................................................................................................41.6 Metode Pelaksanaan Kerja Praktek...................................................................41.7 Sistematika Penulisan........................................................................................5

BAB II TINJAUAN UMUM PERUSAHAAN....................……………………...72.1 Latar Belakang Sejarah PT. ISPAT INDO........................................................72.2 Layout Perusahaan............................................................................................92.3 Tujuan Perusahaan............................................................................................92.4 Struktur Organisasi..........................................................................................10

BAB III PROSES PRODUKSI.............................................................................123.1 BRF (Billet Reheating Furnace)......................................................................133.2 Mill Equipment Area.......................................................................................19

3.2.1 Descaler...................................................................................................223.2.2 Roller Table BRF.....................................................................................223.2.3 Pinch Roll................................................................................................233.2.4 Stand........................................................................................................233.2.5 Vertikal Lopper........................................................................................233.2.6 Shear........................................................................................................243.2.7 Funnel Line..............................................................................................243.2.8 Block Mill Area.......................................................................................243.2.9 Water Cooling Box..................................................................................263.2.10 Turn Forming Head...............................................................................27

3.3 Collection Area................................................................................................273.4 Finishing..........................................................................................................29

BAB IV ANALISA PROSES PENGELASAN MENGGUNAKAN METODE SMAW.................................................................................................31

Jurusan Teknik Mesin FTI - ITS v

Laporan Kerja PraktekJurusan Teknik Mesin

Institut Teknologi Sepuluh Nopember

4.1 Pendahuluan : Bagian Fabrikasi......................................................................314.2 Pendahuluan : Shielded Metal Arc Welding (SMAW). ..................................344.3 Peralatan yang Digunakan...............................................................................35

4.3.1 Welding Power Source............................................................................364.3.2 Pemegang Elektrode................................................................................394.3.3 Elektrode yang Digunakan......................................................................404.3.4 Kabel Las.................................................................................................44

4.5 Posisi Pengelasan............................................................................................45

BAB V ANALISA PROSES PENGELASAN MENGGUNAKAN METODE METAL INERT GAS..........................................................................475.1 Pendahuluan : Bagian Fabrikasi......................................................................475.2 Tahap Pembuatan Komponen.........................................................................475.3 Pendahuluan : Metal Inert Gas Welding.........................................................515.4 Proses Mesin Las MIG....................................................................................525.5 Peralatan yang Digunakan...............................................................................525.6 Pengaturan Peralatan MIG..............................................................................585.7 Elektroda.........................................................................................................60

BAB VI PENUTUP...............................................................................................626.1 Kesimpulan......................................................................................................62

Daftar Pustaka.......................................................................................................63

Jurusan Teknik Mesin FTI - ITS vi