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All Journal Briliant: Jurnal Riset dan Konseptual Barometer
Paramitha, Aditya
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering

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A FORECASTING ANALYSIS OF CAR WHEEL RIM DEMAND AT PT. XX TO REDUCE WASTE USING POM-QM SOFTWARE Paramitha, Aditya; Saifuddin Z.S, Joumil Aidil
BAROMETER Vol 8 No 2 (2023): Barometer
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35261/barometer.v8i2.7702

Abstract

PT. XX is one of the car wheel rim companies in Indonesia whose products are sent to a number of local and international assembly companies. The main goal of this research is to forecast the demand for car wheel rim production using three forecasting methods at PT. XX. The research results are in the form of the value of demand forecasting calculation along with the error rate. It is known that there are three methods used, namely Single Moving Average, Weighted Moving Average, and Single Exponential Smoothing methods. Based on calculations from the POM-QM software, the method that is suitable to be applied in this research is the Weighted Moving Average method because the smallest error value is obtained as in the MAPE error value is 12.124%, the Mean error value is 1177.773 the MAD error value is 24587.23, the MSE error value is 1099377000, and the forecast value in the next period is 243013 units. Through this research and forecasting, the writer hoped that PT. XX could consider it a plan for the next batch of production.
Optimalisasi Kapasitas Stasiun Kerja dengan Metode Theory of Constraints (TOC) di PT. XYZ Paramitha, Aditya; Aryanny, Enny
BRILIANT: Jurnal Riset dan Konseptual Vol 9 No 4 (2024): Volume 9 Nomor 4, November 2024
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v9i4.1890

Abstract

PT. XYZ is a company that produces rims cars. One of the products produced is rims with ABC type. The production process carried out is make to order repetitive. PT. XYZ has a production capacity problem, causing an unfulfilled order. The production floor has a bottleneck work station at work stations 1 and 2. The accumulation occurs because of the standard time difference and the maximum capacity. This study uses the Theory of Constraints (TOC) method to deal with bottlenecked work stations. Calculating the maximum capacity of each work station results in work station s 1 and 2 having less capacity than the other work station. To solve the bottleneck problem at work stations 1 and 2, there are two alternative solutions, overtime and the addition of a work shift. After analyzing the existing problem, to solve bottlenecks at work station s 1 and 2, add the shift of work from 2 shifts to 3 shifts with an overtime of 1 hour per shift.
Co-Authors Enny Aryanny Saifuddin Z.S, Joumil Aidil