DAFTAR ISI
HALAMAN JU D U L........................................................................................................... i HALAMAN PENGESAHAN PEMBIMBING................................................................ii HALAMAN PENGESAHAN PENGUJI..........................................................................iii HALAMAN PERSEMBAHAN......................................................................................... iv HALAMAN M O T TO ......................................................................................................... v KATA PENGANTAR.........................................................................................................vi DAFTAR ISI.........................................................................................................................viii DAFTAR TA BEL................................................................................................................xii DAFTAR GAMBAR........................................................................................................... xiii SURAT KETERANGAN PENELITIAN.......................................................................... xiv ABSTRAK............................................................................................................................ xv
BAB IPENDAHULUAN 1.1
Latar Belakang masalah............................................................................1
1.2
Perumusan Masalah................................................................................... 3
1.3
Batasan Masalah......................................................................................... 3
1.4
Tujuan dan Penelitian................................................................................ 4
1.5
Manfaat Penelitian.....................................................................................4
1.6
Sistemātikā Penulisan................................................................................ 4
BAB II LANDASAN TEORI 2.1
Manufacturing Lead Tim e........................................................................ 7
2.2
Bottleneck Principles - O PT ....................................................................7
2.3 Batch Process dan Batch Transfer............................................................ 9
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2.4 Konsep Dasar Penjadwalan....................................................................... 11 2.5 Metode Overlapping................................................................................... 15 2.5.1 Algoritma Perhitungan M akespan........................................... 18 2.5.2 Perumusan Ukuran Setiap B a tch ............................................. 20 2.5.3 2.6
Flow shop Dengan 2 Stage........................................................23
Perumusan Jumlah Batch Optimal...........................................................25
BAB III METODOLOGI PENELITIAN 3.1 Materi Penelitian......................................................................................... 26 3.2 Obyek Penelitian......................................................................................... 26 3.3 Tahapan Penelitian......................................................................................27 3.4 Data dan Metode Pengumpulannya...........................................................27 3.4.1
Data-data yang dibutuhkan........................................................... 27
3.4.2
Metode Pengumpulan Data .........................................................28
3.5 Langkah-langkah Perhitungan...................................................................29 3.5.1
Perumusan Ukuran dri Setiap B atch............................................29
3.5.2
Perhitungan Makespan....................................................................29
3.6
Analisa Perhitungan dan Pembahasan..................................................... 30
3.7
Kesimpulan dan Saran................................................................................ 30
3 .8 Flow Chart Penelitian................................................................................ 31
BAB IV PENGUMPULAN DAN PENGOLAHAN DATA 4.1
Data Umum Perusahaan............................................................................32 4.1.1
Sejarah dan Perkembangan Perusahaan..................................... 32
4.1.2
Lokasi Perusahaan..........................................................................33
4.1.3
Personalia.........................................................................................33 4.1.3.1
Pengaturan Jam Kerja Karyawan................................. 33
4.1.3.2
Jaminan Sosial dan Keselamatan Kerja....................... 34
4.1.4
4.2
4.3
Sistem Produksi.................................................................................35 4.1.4.1
Bahan Baku Utama dan Bahan Baku Pendukung.........35
4.1.4.2
Mesin dan Alat-alat Produksi...........................................36
4.1.4.3
Jenis Layout Produksi........................................................37
4.1.4.4
Proses Produksi...................................................................38
Pengumpulan Data.......................................................................................... 40 4.2.1
Data Permintaan Produk............................................................. 41
4.2.2
Data Kapasitas Jam Kerja/Mesin............................................... 41
4.2.3
Data Pengamatan Waktu Proses................................................42
4.2.4
Data Input.....................................................................................44
4.2.5
Pengidentifikasian Stage Kritis................................................. 49
Pengolahan Data............................................................................................. 49 4.3.1
Algoritma Perhitungan Makespan.............................................49
4.3.2
Perhitungan Manual untuk Makespan pada Job 1...................50
4.3.3
Perhitungan Manual untuk Makespan pada Job 2...................53
4.3.4
Perhitungan Manual untuk Makespan pada Job 3...................57
BAB V PEMBAHASAN 5.1
Analisa Job atau Srage K ritis...................................................................... 62 5.1.1
Produk Square Table pada Job 1 Line 1 ........................................ 62
5.1.2
Produk Madrid Lamp Table pada Job 2 Line 2 .............................62
5.1.3
Produk Sultan Coffee Table pada Job 3 Line 3 ............................. 63
5.2
Analisa Variable yang Berpengaruh pada Hasil Penjadwalan................. 63
5.3
Analisa Perbandingan Makespan dengan Overlapping dan tanpa O verlapping...................................................................................................64
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BAB VI PENUTUP 6.1
Kesimpulan...................................................................................................... 74
6.2
Saran................................................................................................................74
DAFTAR PUSTAKA KARTU KONSULTASI BIMBINGAN TUGAS AKHIR LEMBAR REV1SI LAM PI RAN
DAFTAR TABEL
Tabel 4.1 Jenis dan jumlah mesin produksi masing-masing produk...............................40 Tabel 4.2 Data permintaan produk .....................................................................................41 Tabel 4.3 Data waktu proses Square Table.........................................................................42 Tabel 4.4 Data Waktu Proses Madrid Lamp T able........................................................... 43 Tabel 4.5 Data Waktu Proses Sultan Coffee T able........................................................... 43 Tabel 4.5 Penentuan beban kerja pada masing-masing pusat kerja ................................44 Tabel 5.1 Complation time dengan dan tanpa overlapping, jo b 1 line 1 .......................... 64 Tabel 5.2 Complation time dengan dan tanpa overlapping, jo b 2 line 2 .......................... 67 Tabel 5.3 Complation time dengan dan tanpa overlapping, jo b 3 line 3 .......................... 70
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DAFTAR GAM BAR
Gambar 2.1 Batch process sama dengan hatch transfer.................................................... 10 Gambar 2.2 Batch process berbeda dengan batch transfer................................................10 Gambar 2.3 Perbandingan makespan dengan dan tanpa menggunakan overlapping...............18 Gambar 2.4 Pengaruh idle time dan queue time terhadap makespan...............................22 Gambar 2.5 Flowshop dengan 2 sta g e................................................................................. 23 Gambar 3.1 Diagram alir penelitian......................................................................................31 Gambar 4.1 Ilustrasi Wn^ungan flow shop ......................................................................... 37 Gambar 4.2 Peta proses operasi Square Table..................................................................... 46 Gambar 4.3 Peta proses operasi Madrid Lamp T ab le.........................................................47 Gambar 4.4 Peta proses operasi Sultan Coffee Table..........................................................48 Gambar 5.1 Makespan tanpa overlapping pada/oA 1 line 1...............................................64 Gambar 5.2 Makespan dengan overlapping pada jo b 1 line 1........................................... 65 Gambar 5.3 Makespan tanpa overlapping pada jo b 2 line 2 ...............................................66 Gambar 5.4 Makespan dengan overlapping pada jo b 2 line 2 .......................................... 69 Gambar 5.5 Makespan tanpa overlapping pada jo b 3 \ine 3 ...............................................71 Gambar 5.6 Makespan dengan overlapping pada jo b 3 line 3........................................... 72
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PT. AMALIA SURYA CEMERLANG JI.Raya Klaten - Soio Km. 5 Ketandan - Klaten - Jawa Tengah - Indonesia Telp. 62-272-328013 - 328014 Fax. 62-272-328013
SURAT KETERANGAN No : 004/SK/Pers- U m um /ASC/III/2006
Yang bertanda tangan dibawah
ini atas nam a Pim pinan
PT.
Amalia
Surya C em erlang, m enerangkan bahwa N am a
: ARMENDO ED W AR
No. M ahasisw a
: 01522247
Fakultas
: Tehnik Industri
Jurusan
: Tehnologi Industri
U niversitas
: Universitas Islam Indonesia
Telah m elaksanakan penelitian terhitung mulai tanggal 20 Juli sampai 20 Agustus 2006,
guna
menyusun
Skripsi
dengan
judul
“ PENJADWALAN BATCH
PROSES DAN BATCH TRANSFER YANG OPTIMAL UNTUK MEMINISASI MANUFACTURING LEAD TIME” studi kasus di PT. Amalia Surya Cemerlang, Klaten.
D em ikian
surat
keterangan
ini
dibuat
untuk
dapat
dipergunakan
sebagaim ana mestinya.
Klaten, 01 Septem ber 2006 Personnel & General Affair, xiv
. .-u Riza Rahm asari
Uc.i
