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All Journal Jurnal Teknik Industri Metris: Jurnal Sains dan Teknologi
Yurida Ekawati
Ma Chung University
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering

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Peningkatan Kualitas Knalpot Pada Pt Fajar Indah Menggunakan Metode Six Sigma Lauretius Danny Dharmawan; Yurida Ekawati
Jurnal Teknik Industri Vol. 15 No. 2 (2014): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol15.No2.112-123

Abstract

PT Fajar Indah is an automotive company which is one of their flagship products is muffler for Colt Diesel FE 120 PS. During 2012 and 2013, PT Fajar Indah was able to produced muffler up to 2400 unit with 6-7% defects rate. There are five type of defects that affects muffler’s quality which are lid’s defects, ring’s defects, defects of resonator’s size, defects of plate’s cutting size, and defects of broken plate. To determine whether improvements are needed in muffler’s prodution process and how they will be conducted so six sigma will be used for analysis. Analysis was conducted using DMAIC process, where recommended action for quality improvement were determined with RCA and FMEA. Result from analysis shows that PT Fajar Indah had 12,879 DPMO value and 3.73 sigma which mean that improvement is needed in muffler’s production process. Some recommended actions that can be done are maintenance scheduling, making work instruction and supervise it, improving storage method for ring’s model, provide place for plate scraps from cutting process, adding more workesr for products inspection, and looking for suppliers who are able to provide plate with standard quality.
Peningkatan Kualitas Produk GRC (Glassfibre Reinforced Cement) Roster pada UD. XYZ Malang Menggunakan Metode Taguchi Muhammad Sigit Prabowo; Yurida Ekawati
Jurnal METRIS Vol. 20 No. 02 (2019): 2019
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.v20i2.2423

Abstract

The growth of manufacturing industries has caused the competition among companies becomes tighter. Therefore, companies need to make an effort to survive. One of the things that must be considered is the quality of products produced by the company. This research is conducted to design a refinement or quality improvement for GRC roster products in UD. XYZ Malang. The quality improvement is done with Taguchi method experimental design in order to get optimal combination for the materials. As for the orthogonal array notation used is L9(34) with gypsum (A), sand (B), cement (C), and water (D) as the controlling factors. The data processing is carried out using ANOVA towards the average value and SNR with larger the better classification. The ANOVA calculation is done in order to find out the significantly influential factors in product durability. The test done to find out the product durability is a pressure test. According to the result of data processing, the ratio of optimal mixture composition gypsum:sand: cement: wateris 2:2:2:1 (A3, B2, C3, dan D2). A confirmation experiment is conducted to the optimal composition. The analysis of the material cost for each experiment is done to justify the effectiveness of the optimal designed product chosen. Based on the pressure durability and cost calculation, the mean of result is 13,256 kg/cm2 for the pressure durability which indicates the quality is better than the exsisting product and able to save costs of Rp 1.630,927 in order to produce one GRC Roster.
Analisis Kenyamanan Termal Ruang Kuliah Yuswono Hadi; Tabitha Azaria; Purnomo .; Novenda K. Putrianto; Teguh Oktiarso; Yurida Ekawati; Sunday Noya
Jurnal METRIS Vol. 21 No. 01 (2020): 2020
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.v21i01.2428

Abstract

Bhakti Persada Building is one of the main buildings at Ma Chung University that serves as a place for the lecture process and student activities. Every room of Bhakti Persada Building has an AC that is on every day and there are very adequate windows and vents. The study aims to provide thermal comfort to the space users by measure temperature, humidity, and wind speed before and after the engineering of space facilities using SNI 6390: 2011 for temperature and humidity as well as the MENKES No.261 / MENKES / SK / 11/1998 standard for wind speed. In addition, this study was also conducted by paying attention to environmental issues, especially energy utilization, so that later it will be obtained scheduling to use of air conditioners as well as the efficiency of the use of electrical energy after the engineering of space facilities. The results of thermal comfort analysis after engineering the room facilities, obtained the time zone of the lecture room using a propeller fan is the time zone I and II for all sizes of lecture rooms while for time zone III all lecture rooms will use air conditioning because the temperature increases ± 0, 5 ° C, and for time zone IV lecture rooms with sizes 5 x 9 m, 6 x 9 m and 8 x 9 m the second floor will use a fan and a room size 8 x 9 m and 10 x 9 m third floor will use AC. After the engineering of space facilities, it was also found that the efficiency of the use of electrical energy in the lecture hall of the Bhakti Persada Building was 53%.
Co-Authors Ferdinand Effendi Lauretius Danny Dharmawan Muhammad Sigit Prabowo Novenda K. Putrianto Purnomo . Sunday Noya Tabitha Azaria Teguh Oktiarso Yuswono Hadi