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All Journal REKAYASA Industry Xplore Journal of Industrial Engineering and Halal Industries
Trio Yonathan Teja Kusuma
UIN Sunan Kalijaga Yogyakarta
Religion Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Physics

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Pengendalian Kualitas Produk Downlight dengan Implementasi Simulasi Die Casting Trio Yonathan Teja Kusuma; Gunawan Budi Susilo; M Zulhan Iswanda
Rekayasa Vol 16, No 1: April 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v16i1.18839

Abstract

Die casting is a casting process in which molten metal is poured into a mold by injection using a piston driven by pneumatic/hydraulic energy. In some cases, the resulting product does not match the desired design because defects will occur if the configuration is not correct. There are several defects that commonly occur in the Die casting process such as cold shot, shrinkage, bubble, warping, undercut, etc. With the help of computers, these problems are expected to be reduced. Using inspire cast to visualize the injection process will facilitate the analysis of the Die casting process. With the help of this software, a better configuration can be created and implemented into the machine. However, the results are different, when simulating in the software it is said that the molten metal streams from different gates are above the recrystallization temperature of 665°C so it should harden and fuse better when the two molten metal streams meet. However, after implementing the new configurations into the machine, the process defects were still high at 23% for configuration 1 and 13% for configuration 2 compared to 6% for the existing configuration. However, implementing this software will reduce the cost of trial and error process to find a new configuration for a new material.
Waste Reduction Analysis with Lean Manufacturing Approach Eulis Yulianti Faridah; Trio Yonathan Teja Kusuma
Journal of Industrial Engineering and Halal Industries Vol. 4 No. 2 (2023): Vol. 4 No. 2 December (2023): Journal of Industrial Engineering and Halal Indus
Publisher : Industrial Engineering Department, Faculty of Science and Engineering, UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiehis.4218

Abstract

UPT Logam Yogyakarta is one of the manufacturing industries engaged in metal casting services. UPT Logam Yogyakarta has the status of a Regional Business Service Agency so that this company has the capacity to receive requests from local and foreign consumers. One of the requests produced is the product Panasonic Downlight NN511. The problem that occurs in this company is the waste that occurs in the production process which results in losses to the company because the production output is not optimal. This can be indicated from the capacity of the production machine in the form of a sophisticated automated die casting machine with the ability to produce a Panasonic Downlight NN511 product per 45 seconds that cannot be utilized optimally, due to an unbalanced production path caused by waste and non-value added time. As a result, the production capacity of 1040 pcs per day cannot be achieved, and is only able to produce at the rate of 200-300 pcs. As a calculation reference to determine the degree of accuracy, a adequacy and uniformity test of the data will be carried out, then calculate the rating factor and determine the allowance for the calculation of normal time and standard time. After testing and adjusting the data with the factor rating and allowance, it was found that there was a cycle time that was greater than the taktime, it explained that the metal UPT had to reduce the cycle time at the finishing and packaging stations to be able to meet customer demands. One of the large proportions of waste is the waiting time in the production process. The analysis to determine the root cause of the problem is carried out using a fishbone diagram. To optimize available resources and increase production efficiency, several continuous improvements are needed in the flow pattern of the Panasonic Downlight NN511 production process. balancing, compiling the layout using Activity Relationships Chart, and collapsing diagrams. From these improvements, it is hoped that Yogyakarta Metals UPT in producing the Panasonic Downlight NN511 can achieve a higher level of productivity.
SEBUAH IMPLEMENTASI GAME THEORY PADA STRATEGI PERSAINGAN LION AIR GROUP DAN GARUDA INDONESIA GROUP Annisa Indah Pratiwi; Bagas Dirgantara; Trio Yonathan Teja Kusuma
Industry Xplore Vol 9 No 2 (2024): Industry Xplore
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat, Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/teknikindustri.v9i2.7865

Abstract

Aviation is still the people's choice of transportation today. Airlines in Indonesia are quite diverse so people consider the choice of airline. Starting from the quality of service, price, ease of reservation, etc. This case aims to analyze the strategies of AL Group and IG Group and find out which strategy is the most optimal for two parent companies. The method used is using Game Theory (Pure Strategy) which uses manual calculations and with the help of POM-QM software. In the manual calculation, the optimal value for the two parent airlines was 12. In the POM-QM software calculation, the optimal value for the two parent airlines was 11.56. Both parent airlines get the optimal point if using strategy 3 for IG Group and strategy 5 for AL Group.
Co-Authors Annisa Indah Pratiwi Bagas Dirgantara Eulis Yulianti Faridah Gunawan Budi Susilo M Zulhan Iswanda