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All Journal JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Sinergi Proceeding Mercu Buana Conference on Industrial Engineering Journal of Information System, Technology and Engineering
Alfa Firdaus
Universitas Mercu Buana
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Transportation

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Improving Surface Finish Quality of Plastic Molds via VSM and DMAIC Integration Kholil, Muhammad; Hidayat, Syarif; Firdaus, Alfa
Journal of Information System, Technology and Engineering Vol. 3 No. 3 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i3.187

Abstract

The rapid growth of manufacturing demands continuous process improvement. This study examines a plastic manufacturing company’s Mouldshop, which has not met performance targets an average lead time of 52 days (target 50 days) and a 75% success rate (target 93%) and struggles to achieve the desired surface finish quality of plastic molds. An integrated Value Stream Mapping (VSM) and Six Sigma DMAIC approach is applied to visualize end-to-end process flows (VA/NNVA/NVA), quantify performance gaps, analyze root causes (Fishbone with the 4M Man, Machine, Material, Method), and design improvements. VSM reveals three dominant wastes defects, inappropriate processing, and waiting linked to six critical failure causes spanning operator capability and discipline; overloaded schedules, equipment failures, machining errors, temperature control, and precision instability; material selection and procurement delays; and shortcomings in work- instruction compliance, machining parameters, drawing completeness, and standardized process flow. Using 5W+1H within DMAIC, the study proposes: standardized machining instructions and setup times; preventive- maintenance schedules and checklists; incoming verification with PIC accountability; structured training; mold quality checklists; weekly 5S/5R audits; and Future State Mapping to reduce NNVA/NVA. The integrated DMAIC–VSM roadmap is expected to shorten lead time, raise the value-added ratio, and improve surface finish quality, offering a transferable blueprint for similar manufacturing operations.
Peningkatan Kinerja Mesin Loading Arm dengan Total Productive Maintenance Riza, M.; Firdaus, Alfa
Proceeding Mercu Buana Conference on Industrial Engineering Vol 5 (2023): LEAN AND GREEN FOR SUSTAINABILITY DEVELOPMENT GOALS IN THE I4.0 ERA
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/MBCIE.2023.021

Abstract

Machines or equipment are the most important part of a work system. Machines require effective and efficient maintenance to be able to guarantee and support business processes so they can operate properly. Maintenance activities are the most important part of the company's business programs in both the manufacturing and service industries. The Middle East Gas Industry is one of the industries that runs gas service processes. Based on observations, it was found that the engine had a breakdown problem which resulted in the machine not being able to operate optimally. This study aims to analyze the factors that cause the machine to experience a break down and make improvements so that the engine performance increases. This study uses the Fishbone method and Total Productive Maintenance. The research object was carried out on the Loading Arm machine. The problems that occur are caused by damage to Swifel. Improvements are made by carrying out the TPM pillars, namely planned maintenance and focused improvement. The results of the study show that during the initial period of 2023 there will be no leaks in the seals thereby increasing the performance of the Loading Arm and increasing productivity.
Co-Authors - Murtiningrum Ani Suryani Ani Suryani Atep Afia Hidayat Dedy Pratama Dedy Pratama Erliza Noor Indra Almahdy, Indra M Syamsul Maarif M Syamsul Ma’arif M. Syamsul Maarif Ma’arif, M Syamsul Machfud Machfud Machfud Machfud Muhammad Ibrahim Ats-Tsauri Muhammad Kholil Muhammad Syahri Nur Afif Murtiningrum Murtiningrum Riza, M. Selamat Riadi Syarif Hidayat Uly Amrina Yulizan Rizki