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Metris: Jurnal Sains dan Teknologi
Published by Universitas Katolik Indonesia Atma Jaya
ISSN : 14113287     EISSN : 28084810     DOI : https://doi.org/10.25170/metris
Core Subject : Science, Education, Engineering,
Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering
Jurnal Metris is published 2 (twice) a year. Since Volume 14 in 2013, Jurnal Metris has been published in June and December. The contents of the journal discuss research results in the field of industrial engineering. Jurnal Metris provides a place of publishing for sharing the new findings from research results of researchers, academics, scientists, and practitioners who related to the scope (but not limited) of: 1) Smart Production; 2) Lean Manufacturing; 3) Product Design & Development; 4) Human Factors Engineering; 5) Management Science and Operation Research; 6) Logistics and Supply Chain Management; 7) Decision Science in Business and Management; 8) Quality Engineering.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 8 Documents
 1 
Search results for , issue "Vol. 24 No. 01 (2023): 2023" : 8 Documents clear
Analisis Waste Pada UMKM Konveksi Maxsupply Menggunakan Pendekatan Lean Manufacturing Septalia Rakhmaputri; Budi Aribowo; Nunung Nurhasanah; Aprilia Tri Purwandari
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4251

Abstract

According to the theory of the Toyota Production System (TPS), there are seven types of waste that exist during the production process: Overproduction, defective products, storage, transportation, waiting, unnecessary movement, and overprocessing. To maximize profits, Maxsupply Convection uses the made-to-order production method and works to produce products according to customer requests. To meet the expectations of its customers, Maxsupply must consider productivity levels, product quality, and on-time delivery. In addition, a process can be considered efficient and effective if it does not produce waste. Meanwhile, the company's production process is inseparable from waste. The Borda method identified waste in companies and found waste in waiting and unnecessary movements. After that, a causal diagram is used to see what factors can cause waste in the production process. Man, machine, method, material, and environment cause the waiting category. Man, method, and environment cause the unnecessary movement category. Using AHP found that the highest priority cause of waste in the waiting process was due to the machine factor with a value of 10% and in the unnecessary movement category of 20% caused by environmental factors. Control recommendations given using FMEA get an RPN value of 49 with control recommendations, namely carrying out routine maintenance for machines, and an RPN value of 79 in the unnecessary movement category by implementing 5R in the production area. The proposed improvements in this study are a Standard Operating Procedure (SOP) devoted to machine routine scheduling and the implementation of 5R by all employees in the production area.
Upaya Peningkatan Kualitas dengan Menggunakan Analisis Siklus PDCA pada Perusahaan Otomotif BASUKI
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4293

Abstract

Abstract In this era of globalization, the competition in the automotive industry is getting more challenging, and consumer demands are also continually increasing. This is what encourages the automotive industry to make products as perfect as possible, one of which is minimizing the level of defects in their production lines. By reducing defects, the process will flow faster without going through the repair process. But in actuality, there are still defects found in the poses of its production. This research was conducted in the welding process in the automotive industry. This paper aims to identify defects in the welding production process in the automotive industry. Then analyze the most dominant defect, find the root cause, and improve. This study uses the PDCA cycle method. The PDCA cycle is a continuous improvement model consisting of four sequential components, Plan, Do, Check, and Action. The results of this study identified five major defects in the welding process: hole nut not centered, dents, NG stud bolts, NG parts, and non-stick spots. The average defect per month is 110 defects, and the dominant defect is the non-centered nut hole of 63.8 defects (58%). The root cause is when the part setting stopper position is unstable. The improvement made is adding a locator pin cylinder hole nut to stabilize the position. The results of this improvement can reduce welding defects to 58.5 defects per month, and the average defect hole nut is not centered by 3.5 defects (6%). So the PDCA cycle is very effective in efforts to improve product quality.   Keyword : PDCA, Plan-Do-Check-Action, continuous improvement, kaizen, defects.
Usulan Perbaikan Tata Letak Gudang Pendingin yang Memaksimalkan Daya Tampung dan Meminimumkan RataRata Jarak Perpindahan (Studi Kasus PT. XYZ) Trifenaus Prabu Hidayat; Aliffian Yanuwar; Agustinus Silalahi
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4300

Abstract

PT. XYZ’s Cold Storage that is located in the Pelabuhan Perikanan Samudera Nizam Zachman Jakarta currently does not implement a storage layout system, the are randomly placed, even an empty area near the door is not utilized to put the commodity to be stored. Causing the forklift mileage to grow larger. In addition, the demand for cold storage is increasing from year to year so that cold storage should be increased current capacity, cold storage is currently able to accommodate 575 pallets. The increase in cold storage capacity is done by combining the storage flow, pallet laying position, as well as the layout method of class based storage, dedicated storage, and random storage. The combination of these three factors resulted in 18 possible proposals for the improvement of the cold storage layout. From the 18th combinations likely to be taken one combination of layouts by considering three criteria i.e. maximum capacity, minimum distance, and maximum revenue gained from maximum capacity. Proposal layout with a combination of pallet widened position, simple straight groove, with dedicated storage method to be the best proposal with a maximum capacity of 750 pallets, the minimum distance of 5728.82 m, and the company can earn a maximum income of Rp 297 million per month with the capacity.
Optimalisasi Rute Pengiriman Dengan Meminimasi Jarak Menggunakan Saving Matrix: Sebuah Studi Kasus Nova Sepadyati; Ronny Hariono; Fransiskus Xaverius Nelson Thesman; Raynaldy Renard Leuw; William Edric; Hananiel Vincent
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4307

Abstract

CV. X is a pillows and bolsters manufacturer in Surabaya. The current deliverystrategy is a single route using limited-capacity vehicles. Single route deliverymakes low % utilization or multiple deliveries to the same customer daily. Thepurpose of this case study is to find the minimum cost route with a specificvehicle and limited capacity using the Saving Matrix method and make asuggestion by creating an SOP for product delivery. After calculating the pastdata from July to September 2022, a distance savings of 12.11 km was obtained,and the highest savings in the number of transport vehicles was 2. In addition,there was a 20% increase in truck utilization.  
A Design of a hydraulic trolley to reduce work risks in gram transfer activities at PT XYZ Mira Rahayu; Ade Malik
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4319

Abstract

Material Handling Equipment (MHE) is a tool used to facilitate worker activities when doing heavy work. Material Handling Equipment (MHE) is also very helpful for workers in reducing the workload caused by less ergonomic activities that can cause worker fatigue. At PT XYZ there is activity of transferring grams onto trucks with trolleys. In the activity of transferring gram ± 60 minutes for transferring gram onto the truck. The worker's posture when using the trolley has a REBA value of 12 which means Very High Risk. Therefore this study focuses on redesigning the trolley with consideration of REBA analysis using the Kansei Engineering approach. The results of the redesign get a REBA value of 3, it can be concluded that the proposed trolley is better than the existing trolley
Analysis of Mental Workload on Counter Sales Using NASA-TLX Method Dinda Safitri Ramadhani; Arinda Soraya Putri; Niken Fauziah Ambarwati
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4358

Abstract

PT. XYZ is a service-oriented branch company that provides consumers with a wide range of products. Services provided by this company is divided into three main sections, namely sales, service, and spare part. One of the main parts is sales, which is selling units of cars carried out by counter sales to meet targets. The demand for achieving targets provides a psychological workload for counter sales. Therefore, it is necessary to measure the mental workload in this area. The work measurement method used in this research is NASA-TLX. This method was developed based on the emergence of subjective measurement needs in measuring workload using six indicators, namely mental demand, physical demand, temporal demand, own performance, effort, and level of frustration. The results showed that WWL values ​​were in the range of 88.33-91.67 and had a very high category. Several recommendations for improvement that need to be implemented include evaluating picket scheduling by considering predictions of increased customer visits, conducting routine training and providing motivation, and providing rewards as a form of appreciation for workers according to their achievements.
Stock Price Prediction Using Formula From Data Scale Analysis Extrapolation Method Kumala Indriati; Stepanus Ivan Goenawan; Christine Natalia; Jesslyn Fabrianne
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4359

Abstract

Public awareness about stocks is increasing every year. This needs to be balanced with advances in science to help investors make more measurable and systematic decisions. The purpose of this study is to apply Extrapolation of Data Scale Analysis (DSA) in predicting stock prices. The DSA Extrapolation method will produce a new formula called JIC-FLY 3 which is used to process big data in predicting prices at a certain time. The population in this study is the share price of the telecommunications sub-sector with EXCL (PT XL Axiata Tbk.) as a sample. The error value measurement method used is the Mean Absolute Percentage Error (MAPE). The result of this study is that the DSA 19 extrapolation method using the JIC-FLY 3 formula is able to predict the share price of the telecommunication subsector with the best error giving the smallest error value of 0.193%.
Experimental Tests of Effect of Vertical Lifting Height, Horizontal Distance, and Weight Load Lifting Method on Muscle Activation Value Generated Using Electromyography Jessica; Yanto; Wibawa Prasetya; Nur Tjahyo Eka Darmayanti
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4563

Abstract

In industry, manual lifting activities certainly involve muscles and generate risks if done improperly. There are problems in the form of complaints from industrial workers on manual lifting activities that are carried out in a less ergonomic manner. This study aims to determine the effect of lifting factor variables on the resulting level of muscle activation. In this case, three factors are used, namely the lifting method factor, the horizontal distance factor, and the vertical distance factor, each of which has two factor levels to produce eight combinations of lifting factors. Randomization was carried out on research subjects totalling 10 people. Previous research that has been done manually is by calculating the pulse resulting from a lifting activity according to a specified frequency. In this study, monitoring of muscle activity was carried out automatically using an instrument called Electromyography (EMG) at three points of the hand muscles, namely the biceps brachii muscle, triceps brachii muscle, and brachioradialis muscle. The results of this study indicate the best combination based on the value of muscle activation on the biceps brachii muscle, triceps brachii muscle, and brachioradialis muscle which respectively include combination 2 (M1-H2-V1) with a significance value of 0.002, combination 6 (M2-H2 -V1) with a significance value of 0.000 and combination 2 (M1-H2-V1) with a significance value of 0.013. The resulting combination of the best lifting factors can be used as a reference and recommendations for the ideal lifting posture and conditions for workers in minimizing possible injuries

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