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All Journal Jurnal Rekavasi Jurnal Sistem dan Manajemen Industri Jurnal INTECH Teknik Industri Universitas Serang Raya
Gerry Anugrah Dwiputra, Gerry Anugrah
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Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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PENERAPAN KONSEP FAILURE MODE AND EFFECT ANALYSIS (FMEA) DALAM PENGENDALIAN KUALITAS PRODUK DENGAN MENGGUNAKAN METODE SIX SIGMA Widyarto, Wahyu Oktri; Dwiputra, Gerry Anugrah; Kristiantoro, Yitno
Jurnal Rekavasi Vol 3, No 1 (2015)
Publisher : Jurnal Rekavasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Upaya yang dilakukan untuk menjamin kualitas produk adalah dengan mencegah dan mengeliminir kegagalan produk yang memerlukan analisa kegagalan. Untuk mengetahui, menganalisa dan mengatasi variasi produk yang terjadi, dapat digunakan suatu metode pengendalian kualitas yaitu Six Sigmamelalui tahapan DMAIC (Define, Measure, Analyze, Improve dan Control).  Untuk mengidentifikasi potensi, penyebab serta efek kegagalan yang terjadi. Untuk tindakan ini, dapat digunakan konsep FMEA (Failure mode and effect analysis) yang mempunyai banyak aplikasi dalam lingkungan Six Sigma dalam hal mencari berbagai masalah kegagalan sehingga pemberian prioritas rencana tindakan perbaikan dapat dilakukan dengan melihat nilai RPN (Risk Priority Number) kejadian gagal  yang teridentifikasi. Tujuan penelitian ini adalah untuk menentukan nilai Defect Per Million Opportunities (DPMO) dan tingkat sigma, menentukan nilai RPN dan memberikan rencana tindakan perbaikan. Penelitian ini mengikuti langkah-langkah dari six sigma yaitu DMAIC dimana penentuan RPN dengan metode FMEA dilakukan pada tahap improve. Berdasarkan hasil pengolahan data, dapat diperoleh bahwa nilai DPMO proses HRC adalah sebesar 677,73 dengan tingkat sigma sebesar 4,70. Hal ini dijadikan performance baseline perusahaan untuk melakukan perbaikan kualitas HRC. Hasil identifikasi CTQ dominan dapat diketahui bahwa CTQ yang sering terjadi adalah jenis rollmark. Oleh karena itu, untuk saat ini rollmark menjadi prioritas perbaikan. Analisis penyebab rollmark dengan FMEA diperoleh mode kegagalan suhu mesin diatas standard dan kinerja mesin menurun menjadi rencana tindakan perbaikan prioritas karena memiliki nilai RPN tertinggi yaitu 150. Kata Kunci: Pengendalian kualitas, Six sigma, FMEA
Analisa Pengendalian Kualitas pada Proses Azodicarbonamide dengan Pendekatan Metode Six Sigma Syahriyanti, Rizki; Rosihin, Rosihin; Dwiputra, Gerry Anugrah
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 4, No 1 (2018)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.895 KB) | DOI: 10.30656/intech.v4i1.852

Abstract

Foaming Agent company is a company engaged in the chemical industrial manufacturing, especially the additive industry for plastic and synthetic rubber. In the production process, the Foaming Agent Company has a problem with one of its products, Azodicarbonamide (ADCA). The number of defects caused becomes a problem primarily related to the course of production and the relationship with the customer. The research was conducted using the Six Sigma method by implementing DMAIC (Define, Measure, Analyze, Improve, Control). This study aims to identify the factors that cause defects and the most optimal choice of options to increase the level of sigma in the ADCA production process. Based on the results the most significant aspects that cause defects in ADCA products is Average Particle Size; 66.77% of the overall production defects. The sigma level that obtained before and after the improvisation is 3.68 and 4.03 with the average achieved savings per month are Rp.600 million. The results of the gradual decrease in defects showed that the options implemented at the improvisation stage were successful, but still needed improvisation so that the companys performance can be even better
Analisis Defect pada Hasil Pengelasan Plate Konstruksi Baja dengan Metode Six Sigma Rohimudin, Rohimudin; Dwiputra, Gerry Anugrah; Supriyadi, Supriyadi
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol. 2 No. 1 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.176 KB) | DOI: 10.30656/intech.v2i1.857

Abstract

From the observations on the construction company, the plate welding defects in steel construction often appear eight types of defects in the form of porosity, Under Cut, Overlap, Porosity, Underfill, Slag, Inclusion, Pin Hole, End Crater, Start Stop. This study aims to determine the types of defects that often appear, find out the causes and provide remedial solutions. This study uses six sigma methods with the stages of DMAIC (Define, Measure, Analyze, Improve, Control). Based on data processing obtained defects in the welding results that often appear namely undercut, porosity, overlap, underfill, spatter, pinhole, end crater, and start-stop. Found the dominant defect of processing Pareto diagrams in the form of Undercut 29%, Overlap 21%, Spatter 18%, Porosity 8%, all four types of defects reached 76%. Factors that cause defects in the welding results are seen from the aspects of the machine, human, method, material, and environment, namely the ampere in the machine that has been unstable, the operator is exhausted, the operator is less skilled, adjusting the ampere in the welding is too large, lack of cleaning, the distance of the bow is too far, the material is dirty, the material is wet, the environment is less comfortable, and the wind blows around the welding area. Some improvements that can be done are checking equipment before work begins, repairing pre-welding preparations in the form of cleaning the material to be carried out welding work, fixing welding techniques, increasing discipline and work motivation and the area to be carried out welding work must be covered with waterproof tarpaulin and the wind is protected from wind and rain. The improvement results can reduce the DPMO value from 51841 to 35377, and an increase in the sigma value from the initial sigma by 1.7 to 2.1.
Perancangan Identifikasi Bahaya di Area Feed Water System Boiler Menggunakan Metode HAZOP (Hazard And Operability Study) Saputra, Gilang; Supriyadi, Supriyadi; Dwiputra, Gerry Anugrah
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 2, No 2 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v2i2.865

Abstract

Blast Furnace Complex is a new factory where there is no identification of potential hazards, the identification process of potential hazards also applies in the Feed water System area, which serves to continuously supply High Pressure Boiler Feed water as raw material for making Steam in Boilers. The process of identifying potential hazards aims to find out what potential hazards are found in the Feed water System area during work activities, so that preventive and risk control measures can be taken. This study uses the HAZOP (Hazard and Operability Study) method, which begins with determining the nodes, determining the operating parameters that occur at each node, then relying on guide words and the idea of the team to assess potential hazards, prevention that can be done and control efforts against potential hazards. . It was concluded from the results of the study that there were nine nodes with 11 operating deviations, of which all of the deviations were in the 9% Extreme Risk category, 18% for High Risk, 55% for Moderate Risk, and 18% Low Risk. for Extreme Risk is found at the Suction Pipe node HBF-CS4.0-11 with Less Pressure deviations caused by leakage on the HBF pipeline, with recommendations for patching at the point of leakage for emergency actions.
Perancangan dan Penjadwalan pada Proyek Storage Tank dengan Metode Critical Path Methid Path Method Kurniatullah, Kurniatullah; Wibowo, Tri Joko; Dwiputra, Gerry Anugrah
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 2, No 2 (2016)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/intech.v2i2.867

Abstract

These companies often experience difficulties caused by unscheduled and planned projects, material delays and lack of workforce for project work. From the problems that occur, this study aims to find activities that are critical trajectories for initial conditions and acceleration based on the Critical Path Method, to determine the difference in processing time from the initial conditions to acceleration conditions and to know the project cost advantages that occur between the initial conditions and conditions acceleration. CPM is a network-based method that uses a balance of time and cost. Each activity can be completed faster than regular time by crossing movements for a certain amount of charges. The method is used to find out when each event will begin and when it will be completed, data retrieval and research conducted at PT. DIHI. The results of the study showed that critical activity in the initial condition was for 253 days. While the acceleration activities of the total acceleration 208 days with 17 activities entered the critical path, from the results of these calculations the costs obtained from this project for the initial conditions were Rp 1,683,505,000, and the acceleration conditions were Rp 1,734,910,000.
Analisis Penjualan Baju Seragam Sekolah di Konveksi Hanifah Collection Fazarudin, Ahmad; Nalhadi, Ahmad; Dwiputra, Gerry Anugrah
Jurnal INTECH Teknik Industri Universitas Serang Raya Vol 3, No 2 (2017)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.995 KB) | DOI: 10.30656/intech.v3i2.880

Abstract

Hanifah Collection is a company engaged in the convection of school uniforms. The fluctuating number of requests each month creates its problems in determining the amount of production. This study aims to find a method that matches the data pattern as the basis for determining the amount of output in the next period. The technique used in this study is the forecasting method of Moving Average, Exponential Smoothing and Triple Exponential Smoothing with parameter level errors of each way using MAD, MSE, and MAPE. From the results of this study, there is a moving average method with the most appropriate method in determining demand forecasting in the next period with a value of MAD of 172.22, MSE of 46624.34 and MAPE 46624.34.
Analisis Kelayakan Pengembangan Usaha Rumah Makan Krebo Jantan Dwiputra, Gerry Anugrah
Jurnal Sistem dan Manajemen Industri Vol. 1 No. 2 (2017)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.351 KB) | DOI: 10.30656/jsmi.v1i2.478

Abstract

At this time Krebo Jantan Restaurant has plans to conduct business development in the field of food. Krebo Jantan Restaurant has a problem as to whether its business development plan can provide feasibility for future growth of the company. The purpose of this study is to determine the possibility of the business plan for the development of food business with the limits of research on the assessment of financial aspects. Primary data collection is done through field observation, interview and questionnaire filling. Objects in interviews and surveys are business owners and residents around the place of business. Secondary data are obtained from literature studies. Data were analyzed by using Payback Period (PBP) method, Present Net Value (NPV) method, and Internal Rate of Return (IRR) Method. The result of the research shows the ability of the company to return all investment cost is for four years eight months. Cash funds collected from year to year if assessed at present with a positive value at the end of year 5 (five) and the ability of the company's business to provide annual average return/dividend amounted to 20.494%. Based on the results of financial analysis shows that all economic feasibility criteria are met so that the development of business feasible to be carried out under standard conditions,
mplementation of lean manufacturing to enhance the efficiency of acrylic resins production process Sahrupi, Sahrupi; Dwiputra, Gerry Anugrah; Chasanah, Uswatun
Jurnal Sistem dan Manajemen Industri Vol. 4 No. 1 (2020)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v4i1.1488

Abstract

High lead time processing of acrylic resins leads to the production of products to consumer undergoes and high-production costs. This study aims to reduce lead time by analyzing various activities that have value-added, non-value-added, and necessary non-value-added. The research is conducted using lean manufacturing approaches on acrylic resin production processes. The analysis shows that the activity of delay and transportation is a contributor of waste that occurs in the production process of acrylic resins. Improvements by minimizing both activities in the are thining tank, reactor, and monomer tank can increase the efficiency of the production process. The improvement results show a decrease in lead time from 1298 minutes to 1075 minutes. This study demonstrates that lean manufacturing can improve the time process efficiency of 17.18%, which means the output ratio will increase by around 17.18% in a process.
Co-Authors Ahmad Nalhadi, Ahmad Fazarudin, Ahmad Kurniatullah, Kurniatullah RB. Tri Joko Wibowo Rohimudin, Rohimudin Rosihin Rosihin, Rosihin Sahrupi, Sahrupi Saputra, Gilang Supriyadi Supriyadi Syahriyanti, Rizki Uswatun Chasanah Wahyu Oktri Widyarto Yitno Kristiantoro, Yitno