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INDONESIA
INAQUE: Journal of Industrial & Quality Engineering
Published by Universitas Komputer Indonesia
ISSN : 23032715     EISSN : 26225816     DOI : -
Core Subject : Economy, Science, Engineering,
Computer Science & IT Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Mechanical Engineering
INAQUE is a journal published two times per year (February and August) aimed at publishing research results in the field of industrial and quality engineering.
Arjuna Subject : -
Articles 98 Documents
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PENINGKATAN PRODUKTIVITAS MELALUI PENGURANGAN DEFECT PRODUK KABEL FIBER OPTIK DENGAN METODE TPM FOCUS IMPROVEMENT SEBAGAI KONTRIBUSI SDGS Sulistyo, Arif Budi; Solihati, Tifani Intan; Hidayanti, Nur; Siagian, William Harapan Restadamai
Inaque : Journal of Industrial and Quality Engineering Vol 11 No 2 (2023): Inaque Oktober 2023
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v11i2.10707

Abstract

PT. XYZ is a manufacturer of fiber optic cables in Indonesia. This company is known as a premium manufacturer with high-quality products and has expertise in producing various variants of fiber optic cables. Currently, optical cable is a vital material supporting infrastructure development in Indonesia, especially in the field of telecommunications networks, which contributes to Indonesia's SDGs (Sustainable Development Goals) in the social pillars (quality education) and economic pillars (industry, innovation, and infrastructure). There is a problem, namely a decrease in the productivity of machine performance due to an increase in product defects, which is around 9% which can disrupt supply in the market. Many defects occur in Jacketing machines. The purpose of this study is to overcome problems with jacketing machines, so that machine productivity increases and the number of defects decreases
ANALISIS PENGENDALIAN KUALITAS MENGGUNAKAN METODE STATISTICAL QUALITY CONTROL PADA DIE CASTING MOLD DI PT XYZ: Pengendalian kualitas; Statistical Quality Control; Die casting mold Septiani, Sri; Nuraini, Umi
Inaque : Journal of Industrial and Quality Engineering Vol 11 No 2 (2023): Inaque Oktober 2023
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v11i2.10952

Abstract

Perkembangan teknologi yang berlangsung cepat mendorong perusahaan untuk memiliki kemampuan dalam memberikan kepuasan kepada pelanggan dengan menghasilkan produk sesuai standar kualitas yang telah ditetapkan. Agar operasional perusahaan berjalan dengan efisien dan efektif, penting bagi perusahaan untuk melaksanakan pengendalian kualitas dengan tujuan mengurangi jumlah produk cacat atau yang tidak memenuhi persyaratan. PT XYZ beroperasi dalam sektor manufaktur dan menghasilkan berbagai jenis produk termasuk Shop Floor Gauge, Precision Parts, Clamping Tools, Cutting Tools, Mould & Dies, serta Jig and Fixtures. Dalam proses produksinya, produk die casting mold menunjukkan tingkat kecacatan yang lebih tinggi dibandingkan dengan kategori produk lain seperti single part, jig, dan mold plastik. Untuk mengatasi situasi ini, penelitian ini akan menerapkan metode Statistical Quality Control (SQC) dengan memanfaatkan tujuh alat analisis (seven tools), termasuk di dalamnya diagram alir proses, check sheet, histogram, diagram pareto, cause and effect diagram, scatter diagram, dan peta kendali. Dalam konteks tiga jenis cacat yaitu mold cacat visual, diameter mold salah hole, dan mold kurang cutting, ditemukan bahwa cacat terbesar terjadi pada mold cacat visual dengan total 386 unit atau sekitar 46%. Untuk mengurangi tingkat cacat pada produk die casting mold, telah diajukan saran perbaikan berdasarkan beberapa faktor, termasuk kondisi lingkungan, kinerja mesin, efektivitas manusia, dan metode yang digunakan dalam pemeriksaan die casting mold.
ANALISIS BIAYA MUTU ALAS KAKI MODEL BS-12 DI CV.XYZ Hidayah, Nur Yulianti; Raldi, LD Muhammad
Inaque : Journal of Industrial and Quality Engineering Vol 11 No 2 (2023): Inaque Oktober 2023
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v11i2.10968

Abstract

CV.XYZ is a company that produces footwear. From December 2022 – February 2023, the BS-12 footwear model experienced many product rejects. The high percentage of rejected products raises quality costs for rework activities. Identification of the type of rejection and the rework process is needed to determine the rework costs incurred by the company. Analysis of quality costs due to the rework process was carried out using the Process Costing method while identifying the factors causing the occurrence of rejected products using Why-why Analysis. The results of the analysis showed that there were 6 types of damage, namely straps (mouldy, abrasions, broken seams), insole (mouldy, abrasions, broken seams), excess glue, less sticky insole and outsole, loose straps & slippery sole. The quality costs incurred by the company during December 2022 – February 2023 amount to IDR 16,250,104. Products were rejected for multiple reasons, including inadequate facilities and equipment, operators working from home, and a staff shortage to meet production demands. Proposed improvements using 5W+1H included rearranging the production layout for strap storage, making SOP and WI for operators who work at home, buying press machines, and increasing the number of operators.
ESTIMASI BIAYA GARANSI DENGAN PENDEKATAN SKALA WAKTU TERBAIK PRODUK KENDARAAN TRUK MERK "X" DI PT ABC Puspita, Hermita Dyah; Norina, Rida; Puspawardhani, Gianti
Inaque : Journal of Industrial and Quality Engineering Vol 11 No 2 (2023): Inaque Oktober 2023
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v11i2.11257

Abstract

ABSTRACT A warranty is an agreement between a manufacturer and a consumer that guarantees the quality of a product for a certain period or period of use. There is a warranty, products that are defective before the warranty period expires will be replaced or repaired by the manufacturer. From the consumer's perspective, a warranty serves as a guarantee of protection against a product failing or not performing as expected and also as a provider of information about the quality of the product. From the manufacturer's perspective, warranties provide benefits by protecting the manufacturer from excessive consumer complaints. This study aims to determine the estimated warranty costs for “X” brand truck products sold by PT ABC using the best time scale method. The policy implemented by the company is a two-way warranty policy, specifically a warranty policy for automobile products for a period of 3 years or 100,000 km, whichever comes first. The purpose of this study is to perform estimates for branded heavy goods vehicles. The estimated parameters of the truck damage model were obtained using the maximum likelihood method. With the Golden Section algorithm, the resulting parameter is ∈0 = 0.35125 with a minimum variance coefficient obtained of 0.7427391 and a guarantee limit at L= 5.4588. The K distribution of the best fitting time scale is an exponential distribution with parameter λ = 0.964902. The estimated warranty cost for truck brand “X” in company “ABC” using the best time scale method produces a cost of IDR 958,949,134. Keywords: 1 Dimension Guarantee, Best Time Scale, Maksimum Likelihood Estimation.
BEBAN KERJA MENTAL DENGAN METODE NASA TLX PADA KARYAWAN TERMINAL LPG TANJUNG SEKONG J, Neti Wanti; Maulani, Syifa Fajar; Masuroh, Jakiyah; Huwaiza, Rayyan Dzikru
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 1 (2024): Inaque April 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i1.12368

Abstract

Valuable assets for companies are not only things related to objects or securities. However, company assets that are no less important than these things are qualified human resources. Employees with good performance contribute positively to the company. Therefore, optimal management is required. This research was conducted at Tanjung Sekon LPG Terminal, which is one of the terminals located in Cilegon City, Banten. The population size is 106 employees, and a sample of 52 employees was taken using the Slovin method. Mental workload was measured using the NASA-TLX method. Based on the results obtained, it can be determined that 5 employees have a moderate mental workload, 34 employees have a high mental workload score, and 13 employees have a very high mental workload. Based on the comparison of NASA TLX elements, the most dominant result among the 52 employees is that 31.5% of employees have high mental demand (MD), followed by 23.6% of employees with high temporal demand (TD), and 22.8% of employees with high physical demand (PD).
MODEL PENGENDALIAN KUALITAS PADA PABRIK SAGU DENGAN METODE SIX SIGMA Wardah, Siti; Basri, Asan; Ihwan, Khairul
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 1 (2024): Inaque April 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i1.12649

Abstract

Pengendalian kualitas diperlukan untuk memastikan produk yang dihasilkan oleh pabrik memenuhi keinginan konsumen dan mengurangi kecacatan produk. Produksi pabrik sagu adalah salah satu produk yang perlu ditingkatkan kualitasnya. Dalam penelitian ini, DMAIC—yang berarti definisi, pengukuran, analisis, peningkatan, dan pengendalian—adalah tahapan Six Sigma yang digunakan. Hasil penelitian menunjukkan bahwa persentase jenis cacat tual sagu muda sebesar 50,12 % Dan persentase jenis cacat pati kotor sebesar 31,18 %. Nilai total DPO sebesar 2,926898, DPMO sebesar 2926898 dan SQL sebesar 26,5167 selama tahun 2023 adalah 2926898, yield adalah 15,9106 dan hasil SQL 26,5167 yang menggambarkan bahwa hasil tersebut termasuk pada level sigma satu yang berarti sangat tidak kompetitif serta hasil FMEA untuk tual cacat atau tual sagu muda mencapai 140 RPN. Model pengendalian kualitas ini memberikan gambaran evaluasi untuk pabrik untuk meningkatkan kualitas sesuai keinginan konsumen.
PENGARUH RASIO PROFITABILITAS DAN RASIO LIKUIDITAS TERHADAP STRUKTUR MODAL PADA PERUSAHAAN TRANSPORTASI YANG TERDAFTAR DI BURSA EFEK INDONESIA Hartanti, Yunita Dwi; Mustari, Mustari
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 1 (2024): Inaque April 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i1.12846

Abstract

The increasing amount of debt experienced by companies in the transportation sector in recent years has attracted researchers' interest to explore the topic of capital structure as the main focus of this research. This study aims to analyze the effect of profitability ratios and liquidity ratios on the composition of the company's capital structure. The profitability variable is represented using the Return on Assets (ROA) metric, while liquidity is represented by the Current Ratio (CR), and the capital structure is measured by the Debt to Asset Ratio (DAR). The approach used in this research is a quantitative method, with data analysis using Multiple Linear Regression techniques performed with the help of SPSS software. The sample selection was carried out using the Purposive Sampling method on transportation companies listed on the Indonesia Stock Exchange (IDX) during the period 2017-2022. The results showed that simultaneously, profitability and liquidity have a significant influence on the company's capital structure. Separately, profitability has a significant positive influence, while liquidity has a significant negative influence on the company's capital structure.
PENERAPAN GOAL PROGRAMMING UNTUK OPTIMASI JAM KERJA OPERATOR MOLDING PADA PENJADWALAN DI PT. ABC Luthfianto, Saufik; Saputri, Rita; Anthara, , I Made Aryantha
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 1 (2024): Inaque April 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i1.13150

Abstract

Arranging work schedules for operators is one of the problems every business faces. The regulations set by the company, the amount of man power available, and the distribution of work weights are determining factors in the scheduling system. This operator scheduling problem can be modeled as an integer programming problem. Integer programming is an optimization technique with a linear objective function, linear constraint function, and decision variables in the form of integers. In this research, we will discuss the use of goal programming to provide a solution to the scheduling problem of molding operators at PT ABC which still uses manual methods in scheduling. The method used is the integer goal programming method which is a method that can provide solutions to multi-objective problems. This research was carried out with the aim of finding out the correct modeling model for molding operator scheduling using the goal programming method by fulfilling all the constraints that have been set and the desired goal, namely minimizing the total molding operator shift with the help of Lingo software for subsequent implementation at PT ABC.
PENERAPAN METODE HIRARC PADA LANTAI PRODUKSI DI PERUSAHAAN OTOMOTIF Andriana, Iyan; Rabbani, Daffa Khairi
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 1 (2024): Inaque April 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i1.14376

Abstract

In 2024, automotive industry players are projected to experience an increase, this will occur in two-wheeled and four-wheeled vehicles. In line with this development, companies are required to always maintain their productivity and comply with the rules in implementing Occupational Health and Safety, the implementation of K3 is a management policy in order to protect workers and the company in the short and long term. Identification of potential hazards and efforts to prevent work accidents in Automotive Company production areas is one way to prevent work accidents. The method used in this research is HIRARC (Hazard Identification, Risk Assessment, and Risk Control), through direct observation procedures, interviews with employees, and analysis of documents related to work safety. In the hazard identification stage, 9 potential hazards were found in traffic accidents, namely operators being hit by finished products, being hit by drums of chemicals on the Tank line, being scratched by cutting tools on the cutting line, being rolled up by rolls of foam on the Foaming line, fires, the risk of exposure to noise on the HR-line. 2, exposed to fire in the Flame Laminate line, and exposed to chemicals in the spoiler & painting line. Potential Risk assessment resulted in categories of 11% extreme, 45% hard, 22% medium, and 22% medium. Risk control is proposed in the extreme category, namely the need for good design of traffic displays and vehicle substitution. In the hard category, it is proposed to increase discipline regarding SOP and APD in handling finished products, using cutting tools, handling flammable materials, handling Flame Lamenate machines. By proposing several treatment options for controlling both extreme and hard risks, automotive companies can reduce the risk of accidents, increase productivity, and create a safe work environment.
OPTIMALISASI TATA LETAK WORKSHOP FABRIKASI DENGAN METODE ARC DI PT XYZ Sulistyo, Arif Budi; Nurul Ikhsan, Hadid
Inaque : Journal of Industrial and Quality Engineering Vol 12 No 2 (2024): Inaque Oktober 2024
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v12i2.14385

Abstract

This study aims to optimize the facility layout at PT. XYZ's Fabrication Workshop using the Activity Relationship Chart (ARC) method. The current facility layout causes operational inefficiencies, primarily due to excessive material handling distances. The research method involved collecting data on inter-area relationships and facility usage frequency, which were then processed using the ARC method and Blocplan software to generate several proposed layout iterations. Two selected layout proposals were further analyzed: the first layout with an adjacent score of 0.71 reduced material handling distance from 768.6 meters to 473.4 meters (a reduction of 38.4%), while the second layout with an adjacent score of 0.68 reduced the distance to 510 meters (a reduction of 33.6%). The study results indicate that the application of the ARC method is effective in improving the efficiency and effectiveness of the facility layout in the workshop and enhancing the working environment conditions.

Page 9 of 10 | Total Record : 98

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