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INDONESIA
PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Published by Politeknik Perkapalan Negeri Surabaya
ISSN : -     EISSN : 26548631     DOI : https://doi.org/10.33863/cdma.v8i1.2898
Core Subject : Science, Engineering,
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
The aim of the Conference on Design Manufacture Engineering and Its Application (CDMA) is to provide a scientific platform for researchers, academics, and professionals to share and disseminate original research, innovative ideas, and practical developments in the fields of design engineering, manufacturing technology, and their multidisciplinary applications. CDMA welcomes the submission of theoretical and empirical papers that aim to advance knowledge, challenge conventional practices, and offer new insights into areas such as product design, manufacturing systems, industrial automation, materials engineering, and related domains. Submissions may employ various methodological approaches, including experimental research, modeling and simulation, qualitative studies, and data-driven analysis.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 306 Documents
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Analisa Daya Rekat Cat dengan Variabel Surface Roughness, Temperatur Substrat dan Jenis Material Abrasif Menggunakan Metode Taguchi Arum Sukma Mutiara; Farizi Rachman; Rizal Indrawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

PT Lintech Duta Pratama is one of the manufacturing companies where in the process there is a finishing and painting manufacturing process. Painting is done with the aim of inhibiting the rate of corrosion and improving product appearance. Improper painting process results in defects. Products that have defects require repair so that they can then be sent to customers. Repeated repair processes cause delays in product delivery. To get products with good quality, research is needed to get the optimal combination of process parameters in the painting process. The process parameters studied are surface roughness, substrate temperature, and abrasive material type. The experimental design uses the taguchi method in the form of an orthogonal matrix L_9(3^4) with three replications. From the experimental results, the optimal combination of process parameters on adhesion and process cost simultaneously on paint adhesion was obtained, namely surface roughness at level 1 with a value of 50, substrate temperature at level 2 with a value of 34°C, and abrasive material type at level 1 with garnet abrasive. The surface roughness parameter gives a percentage contribution of 14.56%, substrate temperature 0.48%, and abrasive material type 84.28%.
ANALISIS KEKUATAN KONSTRUKSI ALUMINIUM STERN RAMP DOOR SYSTEM WIRE ROPE DENGAN METODE ELEMEN HINGGA Koko Tri Prayogi; Mohamad Hakam; Dian Asa Utari
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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One important construction that needs to be considered on the ship is the stern ramp door. This is because the stern ramp door construction will receive both static loads during its operation. The strength of a structure makes a very important contribution to the overall safety of the system. This study aims to analyze the construction of the stern ramp door to be at a safe limit when used. The analysis method used is the finite element approach (FEM). The output of the structural analysis with the FEM method is to solve the deflection and stress in a structure that receives a certain load under appropriate boundary conditions. This study resulted in a maximum stress that occurred at a plate thickness of 6 mm of 75.67 N / mm² or 75.67 mPa this voltage also meets the provisions of the BKI Strength criteria because it does not exceed the voltage of 98.40 N / mm² or 98.40 Mpa. The deflection that occurs at a plate thickness of 6 mm, the front wheel loading has a deflection of 17.6 mm so that the rear wheel loading has a higher deflection than the front wheel by 35.2 mm. Safety factor at 6 mm thick gets a safety factor of 0.76
Enhancement of Mechanical Properties on Aluminum 5052- H32 sheet for Automotive Panel Material using Various Coating Methods Rifky Maulana Yusron; Hidayat Hidayat; Dhika Aditya Purnomo
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Aluminum alloy 5052-H32 sheet was applied widely in automotive industries, especially for body panel, trunk lid, door, roof, fender and bonnet. It was had numerous advantages such as excellent particular strength, high density, machinability, manufacturing method, high electrical conductivity and availability in various applications. The aims of this research is to provide optimum setting laminate oxide layer on the surface of Aluminum alloy sheet 5052-H32, also to analyze the microstructure and mechanical properties of deposited coatings as well as to compare the performance of anodization and plasma electrolytic oxidation coating in Aluminum alloy 5052-H32 sheet. Factorial L 2x3 was applied as design experiment. Which is current parameter had 2 levels; 200 and 250 minutes. Parameter Coating duration had 3 levels 15, 20, 30 minutes. The oxide layer coating is seen by conducting surface characterization. The improvement of surface hardness by micro-hardness test from 35.3 VHN to 65.8 VHN for anodizing coating, and plasma electrolytic oxidation coating is in the average of 67.9 VHN. The mechanical properties for surface hardness and adhesion strength of aluminum oxide coated of Aluminum alloy sheet 5052-H32 improved.
Perancangan Ulang Tata Letak Lantai Produksi Berdasarkan Metode 5S (Seiri, Seiton, Seiso, Seiketsu, Shitsuke) Alya Ulfatul Jannah; Mohamad Hakam; Fitri Hardiyanti
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 3 No 1 (2019): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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A company engaged in metal casting is building a steel casting project. The layout design in the project has several problems, including the utilization of the area is not optimal, does not pay attention to the proximity relationship between facilities so that excessive movement in material handling occurs. This can affect the productivity of the company. This study aims to determine the total distance of material handling movements so that the selected alternative layout will be obtained. The selected layout can increase efficiency by 4.06% in the total distance of material handling movements. The results of the 5S evaluation using the respondent response sheet on the selected layout have a total score of seiri 4.47, seiton score 4.43, seiso score 4.50, seiketsu score 4.20 and shitsuke score 4.30. Overall, the score is 4.38, so based on the Likert scale it can be categorized as very good.
Perancangan Blind Flange Multi-Size pada Tube Bundle Heat Exchanger sebagai Alat Bantu Tes Hidrostatik Ananda Maulana Rachmat Dhani; Mohammad M.Munir; Dhika A.Purnomo
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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The hydrostatic testing process on tube bundle heat exchanger at PT. PAL Indonesia needs a tool called a blind flange. In this research object PT. PAL Indonesia produces 14 tube bundles with five different types. Each tube bundle type requires one pair of blind flanges, which will be placed on the fixed tube sheet, and a floating tube sheet for five pairs of blind flanges. This amount makes it difficult for the company to store and maintain blind flange products. Poor product maintenance will also impact the physical development, product function, and product life. This study aims to design a multi-size blind flange with a more functional design, ease of maintenance, and more economical manufacturing costs. This study refers to the flange design standards: ASME Section VIII Division 1 and the finite element method. The new concept produces static stress analysis, which has a safe value with a safety factor value of 3.868 and a von Misses stress of 115.2 MPa for fixed tube sheets. Meanwhile, the floating tube sheet produces a safety factor value of 3.676 and a von Misses stress of 122.4 MPa. The new concept costs Rp.488,510,757, which saves 17.18% of the cost of the existing product.
Perancangan Rak Penyimpanan Oli untuk Meningkatkan Kapasitas Warehouse Mazidah Alfarah Syawalyah; Bayu Wiro Karuniawan; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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UT Surabaya has a warehouse for storing spare parts needed either during heavy equipment maintenance work or customer demand in purchasing spare parts. This warehouse still does not maximize the existing capacity, seen from the many spare parts that are not arranged. This is due to the lack of shelf storage capacity due to the demand for many spare parts. In addition, the placement of spare parts that are not organized according to their group creates one of the problems, namely oil leaks that hit other spare parts. Seeing these problems, it is necessary to design a warehouse rack supported using the Ulrich Method by making three design concepts for selecting the most appropriate concept and in accordance with warehouse needs. Making design and structural strength analysis using Fusion 360 Software based on Finite Element Methods. The selected concept is design concept 2 with structural strength analysis of the rack frame obtained the results of allowable deformation of 1.37 mm for manual calculation and software displacement analysis obtained the maximum value that occurs 0.3670 mm with ASTM A36 material deformation allowance of 23.87 mm. The maximum stress value of 45.82 MPa in software analysis and 45.64 Mpa in manual calculations with ASTM A36 material allowable stress limit of 166.667 MPa. Then the maximum safety factor value of 5 is obtained, which means the machine frame is safe to use. total
ISMO Applications in Maintenance Planning for Biogas- Producing Organic Waste Machines Rahayu Mekar Bisono
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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The use of alternative energy sources is a solution to the limited fossil fuel supply. This renewable energy must become new energy such as solar power, wind power, biogas and others. Biogas is another source of electricity in the form of flammable gas produced during the decomposition of organisms by anaerobic organisms or organisms that can survive in confined space conditions. Organic waste biogas production equipment is a tool that supports biogas production by various decomposition processes. In order for the biogas generator to always work properly and be ready for use, there must be a maintenance plan for the device. When planning the maintenance of machinery producing biogas from organic waste, the ISMO method should be followed in the following steps, such as defining maintenance tasks and scheduling maintenance. Machine maintenance is a process to maintain and maintain the machine for a long time. Its function is to ensure the normal operation of the machine and good operation during use, the life of the machine is long, and the machine does not need to be repaired quickly, which can reduce the maintenance cost as much as possible. . The results of the study using this method show that a biogas machine with 200 liters of organic waste capacity requires 9 inspections, 6 minor repairs and 2 medium repairs.
Perancangan Spreader bar sebagai Alat Bantu Pengangkatan pada Proses Erection Isna Dewi Assa Ashariyani; Pranowo Sidi; Priyambodo Nur Ardi Nugroho
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
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The lifting process is needed, among other things, to move goods and maintain the position of the equipment. In this lifting process, spreader bars are needed because the size of the equipment being lifted is too large, but the sling must not hit the equipment. This spreader bar will work with high intensity due to repeated or cyclical load treatment, so fatigue in the structure is likely to occur. Thus, it is necessary to analyze the strength of the structure and estimate the life of the spreader bar. The design method used is the Ulrich method, which involves creating three design concepts from which the best design will be selected according to the selection criteria. Modeling is done with Fusion 360 software, and strength and fatigue life analysis is done using ANSYS Workbench 2023 R1 software with the aim of knowing the amount of stress from the loading received by the structure. The strength analysis of the spreader bar structure in the selected design concept obtained a maximum stress value of 154.71 MPa; this value is still at a safe limit because it is below the maximum allowable stress value of 166.667 MPa, and the safety factor obtained is 5.6026. This value is safe because it is greater than 1. The total estimated material cost required for this spreader bar is IDR 21,866,910.67.
Analisis Penjadwalan Proyek Dengan Penambahan Manpower dan Over Time Menggunakan Metode Time Cost Trade Off Sri Puji Lestari; Widya Emilia Primaningtyas; Rina Sandora
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
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A construction company in Karangpilang received a Pressure Vessel project. This project is delayed from the predetermined date so that a fine of 0.2% is imposed every day. So it is necessary to analyze project scheduling in order to get the maximum time and cost in this project. The methods used in this research are Time Cost Trade Off (TCTO), Precedence Diagram Method (PDM) and crashing. Acceleration is carried out on critical trajectories namely Marking/Catting, Rolling, Fit-Up, Welding, NDT, Primary Blasting and Top Coat. This study uses alternatives to increase over time and additional manpower. In this study, the maximum time and cost results were obtained with an alternative of 25% additional manpower. The resulting accelerated duration is 51 days faster than the actual duration, with costs incurred of Rp. 199,616,473, -, resulting in a decrease of 70% from the actual duration cost of Rp. 286,961,745, -. S curve analysis shows that the accelerated duration can be completed faster than the actual duration because the project can be completed on December 27, 2021. Where the accelerated duration is closer to the planned duration, namely November 26, 2021.
Perancangan Konstruksi Main Girder pada Overhead Crane Single Girder metode Honeycomb SWL 3 Ton Wildan Al Farizy Rif’an; Fipka Bisono; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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In this study, the design of a Single Girder Overhead Craneincludes Girders using Honeycomb beams, end Carriages, runway rails using Honeycombbeams and supporting columns. The next design will be analyzed the strength of the construction made to calculate the maximum stress, deflection, and buckling. The analysis process will use the FEM (fenite element methods) approach using FUSION 360 software. Comparing the simulation results is carried out on the stress yield values, and deflection. From the results of the design and analysis, the dimensions of the Main Girder, End Carriage, Runway Beamand column construction have met the requirements.

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