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All Journal ITEj (Information Technology Engineering Journals) Indonesian Journal of Industrial Engineering & Management Advance Sustainable Science, Engineering and Technology (ASSET)
Aidil, Joumil
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Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mathematics

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Implementation of Lean Manufacturing Approach Using Value Stream Mapping to Optimize Cycle Time and Reduce Process Waste (Case Study: CV. Teguh Jaya Mandiri) Maknun, Salmaa Lu'lu'ul; Aidil, Joumil
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 2: June 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i2.22440

Abstract

Competition in several service sector companies and the manufacturing industry is getting tighter, which requires service companies as well as manufacturing to increase their production. Solving this problem can be started by improving the company system. Especially in minimizing or eliminating waste from the production process. CV. Teguh Jaya Mandiri is a company engaged in packaging screen printing services, its current condition has obstacles in the processing period that exceeds the time limit and does not match consumer demand. This is because the company has not done a good analysis in calculating the cycle time that occurs during the entire process. Thus, researchers can identify the level of waste and proposed improvements to optimize cycle time and reduce waste in the production process. In this research, the lean manufacturing method is used with the Value Stream Mapping tool followed by Process Activity Mapping which is one of VALSAT (Value Stream Analysis Tools). The results showed that Process Activity Mapping using the Value Stream Mapping approach identified waste in the production process at CV. Teguh Jaya Mandiri, namely there are overprocesses. The weighting result of overprocesses is 0,21. Cycle Time has decreased from 24812,5 seconds to 13908,5 seconds or 3 hours 52 minutes by eliminating NVA and reducing existing VA.
A Optimizing Helmet Production Quality Using The Six Sigma DMAIC Approach and FMEA Syaker, Abdan; Aidil, Joumil
ITEJ (Information Technology Engineering Journals) Vol 10 No 1 (2025): June
Publisher : Pusat Teknologi Informasi dan Pangkalan Data IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/itej.v10i1.209

Abstract

This study was conducted to analyze the main causes of defects in the Bogo helmet production process at PT Sidoarjo Helmet. The research method used is Six Sigma with DMAIC (Define, Measure, Analyze, Improve, Control) approach combined with FMEA (Failure Mode and Effect Analysis) analysis. This research was conducted during the period January-December 2024 with a total inspection of 44,249 units and a total defect of 4,670 units. The purpose of this research is to identify the types of defects that occur most frequently, calculate DPMO values and sigma levels to determine the capability of the production process, and provide suggestions for improvement based on the priority of failures found. Based on the calculation results, the DPMO value is 433,860 which shows that the level of defects is still relatively high, with a sigma level of only 1.67. The results of the FMEA analysis show that bubbly paint has the highest RPN (Risk Priority Number) value, so it is the main focus of improvement efforts. Suggested corrective actions include improving operator training, strengthening work procedures, and controlling the quality of raw materials and production processes. At the control stage, the company is advised to implement regular quality control using control maps and internal audit systems. This research is expected not only to reduce the product defect rate, but also to improve the process efficiency and competitiveness of the company in the national helmet market.
Enhancing Bus Body Assembly Efficiency: Comparative Analysis of Ranked Positional Weight and Region Approach at PT. ABC Prasetyo, Herry Dwi; Aidil, Joumil
Advance Sustainable Science Engineering and Technology Vol. 6 No. 4 (2024): August-October
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v6i4.675

Abstract

In general line balancing problems occur in assembling industries compared to manufacturing industries. Problems that often occur on a production line can usually be seen from the presence of a high work in process bottleneck. The problem faced by the company in the production process is the level of efficiency of the workforce and production machines which are still less than optimal, due to the imbalance of the workload between work stations caused by delays in materials from the warehouse, then the operator usually waits for directions from the foreman first, then waits for the material processing process from other station. Therefore, in the bus body assembly process, it is necessary to make an analysis or calculation of the balance of the bus body assembly process so that it can run smoothly. In the line balancing study using the ranked positional weight and region approach methods, the results of the ranked positional weight method for the bus body assembly line efficiency were 78.43%, then for the balance delay of the bus body assembly 21.57% and idle time 1189.16 minutes. After data processing using the region approach method for the bus body assembly line efficiency, the results were 64.84%, then for the balance delay of the bus body assembly 35.16% and idle time 2344.75 minutes
Co-Authors Maknun, Salmaa Lu'lu'ul Prasetyo, Herry Dwi Syaker, Abdan