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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 42 Documents
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Search results for , issue "Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application" : 42 Documents clear
Rancang Bangun Jig and Fixture Body Valve 250 untuk Proses Milling pada Mesin CNC Milling Horizontal 4 Axis Double Pallet Andaria .; Dhika Aditya Purnomo; Bayu Wiro Karuniawan
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. Zenith Allmart Precisindo is a national private company engaged in the foundry investment casting industry and advanced machining that accepts orders in the form of mass production. One of the component products produced is the body valve 250. This product is a component part of the butterfly valve, which is the body of the valve. The body valve 250 product has five machining processes, and these five processes are carried out on different machines. The first process is done on a manual milling machine, the second process is done on a CNC wirecut machine, the third process is done on a CNC turning machine, the fourth and fifth processes are done on different CNC milling machines. The milling process for the body valve 250 product has a weakness, which requires more CNC milling machines to process each part. This also affects the dimensions between the upper and lower shaftholes of the body valve 250 product which are not concentric. In order to help the process of finishing the body valve 250 product quickly and have accurate dimensions, jig and fixtur were made, so as to reduce the use of CNC milling machines. The method used in this study is the Ulrich method by making 3 different design concepts. This body valve 250 jig and fixture produces 12 products in 1 day with 3 shifts
Analisis Kegagalan Komponen Overhead Crane dengan Metode Failure Mode and Effect Analysis (FMEA) Virdana Adwa Metdifa Husna; Dian Asa Utari; Aulia Nadia Rachmat
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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Repair and maintenance activities aim to increase the functional capability of a system or tool used in production. At PT. Lintech Duta Pratama (PT. LDP), overhead crane is used as a means of moving materials and finished goods. This tool operates to transport materials and finished goods continuously for ± 7 hours per day for 5 working days a week. However, maintenance actions have not been carried out optimally due to a lack of manpower/workers. Thus resulting in delays in the implementation of maintenance activities and affect the completion of production. Against this background, failure identification was carried out using the Failure Mode and Effect Analysis (FMEA) method on the 12.5T overhead crane. With this method the results obtained by filling in the FMEA Worksheet showed that there were 13 components that had the highest risk level value, with 26 failure modes from whole component. The highest RPN value is for the MCB/main power supply component with a value of 209, while the lowest is for the hoisting hook component with a value of 7. So that this component can be considered by the maintenance team and related parties in the company when carrying out maintenance activities on the overhead crane equipment.
RANCANG BANGUN TANGAN PALSU UNTUK PENYANDANG DISABILITAS DENGAN MENGGUNAKAN METODE ULRICH Faris Dawwas; Tri Andi Setiawan; Isa Rachman
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

Indonesia's diverse population has led to an increasing rate of population growth, resulting in congested activities and various challenges. Among the citizens facing difficulties are those with disabilities, especially physical disabilities. To assist them, both the government and non-governmental organizations provide support, such as creating prosthetic hands, enabling them to engage in daily activities like others. This study utilizes the Ulrich method to design a prosthetic hand, generating multiple design concepts and selecting the fourth one through careful consideration. Using Autodesk Fusion 360 software, stress, strain, and displacement tests were conducted on the chosen design concept. The simulation showed that the ABS plastic used in the prosthetic hand achieved a maximum stress of 0.294 MPa, maximum displacement of 18.76 mm, and maximum strain value of 0.0001693, all falling within a safe blue zone. With the concept established, the next steps included assembling the components, programming the prosthetic hand movements, and conducting final tests.
Perancangan Dudukan Motor Circulating Water Pump (CWP) Menggunakan Metode Elemen Hingga Muhammad Iskandar; Mohamad Hakam; Heroe Poernomo
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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PT X. which is engaged in fabrication, has a CWP motor mount fabrication project with static and dynamic loads of 28,117 Kg. The design is carried out with a structural strength analysis intended to calculate the maximum moment, von mises stress, and deflection. This can affect the productivity of the company. This study aims to determine the value of von mises stress that occurs below the allowable stress. With manual calculation, the maximum von mises stress value on the CWP structure is 32.094 Mpa with a maximum deflection value of 0.323 mm. The maximum von mises stress value of manual calculation is below the permit stress and meets the permit stress requirement with a value of 100 Mpa. So the designed holder is categorized as very good.
Pengaruh Komposisi Bahan Baku Geopolimer Terhadap Kuat Tekan Liza Malik; Wiwik Dwi Pratiwi; Pranowo Sidi
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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Geopolymer are solid inorganic polymers produced from a chemical reaction called geopolymerization, which occurs between an alkaline solution and an aluminosilicate source. Geopolymers have been widely studied due to their known compressive strength resistance. This study aims to determine the optimal geopolymer composition for achieving compressive strength resistance. The compressive strength of geopolymers is determined by identifying the highest compressive strength value obtained from a compression test. In this study, variations in raw materials were explored, including Metakaolin at levels of 100%, 90%, 80%,70%,and 60%, Silica Fume at levels of 20%, 30%, and 40%, along with 10% Aluminium Hydroxide. The activator solutions used were Water Glass and KOH solution. The primary test conducted in this study was a compressive strength test aimed at evaluating the geopolymers strength. The results demonstrated that employing a composition of 90% Metakaolin and 10% Aluminium Hydroxide yielded the most favorable outcome. This particular composition exhibited a high compressive strength value of 40,8 MPa, with a standard deviation of ± 1,0 MPa.
HASIL PPM KOPI ARABIKA ROBUSTA BLEND 60/40 DAN 40/60 MENGGUNAKAN ALAT PRESS SEDU KOPI Rovayan Simanjuntak; Sarjianto, S.T., M.T.
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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Transportation is a basic need and plays an important role to support people's daily activities. However, over time, traffic density cannot be handled properly so that it causes traffic irregularities, air pollution, and wasteful use of fuel energy. The need for fuel oil has increased drastically, causing an increase in the price of fuel oil which until now the price is still unstable. Since the decline in vehicle mobility caused by the lockdown, the level of air pollution has decreased compared to before the COVID-19 pandemic. The existence of alternatives and new breakthroughs in vehicles that are more environmentally friendly and efficient based on electricity is an option due to the use of renewable energy such as electric bicycles. The vehicle is currently undergoing very rapid development so that with this innovation it can support the vision of the Indonesian state to achieve Net Zero Emissions in 2060. To achieve this, it can be done by developing a transmission system on bicycles to increase optimal power efficiency and save power so that in the future these bicycles can be used for longer distances. To solve this problem the author uses the Ulrich method. Of the three designs made, a design with a flywheel and motor drive was chosen which was combined into 2 shafts, one of which later became the pedal shaft for the bicycle pedal. Then, the cost of making this transmission system itself costs IDR 3,315,000.
Dampak Radiasi UV Terhadap Kuat Tarik dan Lifetime Material HDPE Pada Pelampung Aerator Tarisa Anggraini; Priyambodo Nur Ardi Nugroho; 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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Aerators play an important role in maintaining shrimp survival in aquaculture ponds. To improve aerator performance, good quality and durability floats are required to support the optimization of aerator loads. Because aerators operate in open areas exposed to sunlight, there is a possibility that aerators will degrade due to exposure to ultraviolet light from the sun. Therefore, this study reviews the impact of ultraviolet light on the decrease in tensile mechanical properties and changes in functional groups in float materials made of HDPE. Tensile test samples were replicated three times in each variation to obtain reliable experimental results, then FTIR testing was performed. The results show that the sample with the highest exposure has the largest decrease in tensile strength, which is about 14%. Based on FTIR analysis, ultraviolet radiation does not reduce functional groups, but reduces the intensity of each functional group. HDPE has an approximate service life of 1664 days.
Rancang Bangun Ergonomi Portabel Floor Chair Sebagai Sarana Penunjang Aktivitas Pondok Pesantren Tri Andi Setiawan; Fais Hamzah; Hikmah Wijayanti
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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Until now, the Ministry of Religion (Kemenag) has recorded that the number of Islamic boarding schools in Indonesia is 26,975 units as of April 2022. All of these Islamic boarding schools educate as many as 2.65 million students. With a number that is not small, it is not uncommon for an Islamic boarding school to experience problems in providing learning facilities such as tables and chairs. This makes most of the learning activities in the boarding house carried out by sitting on the floor. As a result, these habits have an adverse effect on the health of the students. These problems were reviewed using the Gotrak questionnaire and the RULA (Rapid Upper Limb Assessment) method. From the results of the preliminary study, it was known that many students complained of frequent aches or pain in the neck, back, hips and legs. And from the RULA method it shows a score of 5 which means moderate risk and further treatment is needed. From these problems, the idea was generated to make an ergonomic and portable floor chair. To solve this problem, product design and development will be carried out using the Ulrich method. The dimensions of this chair are 64 cm long, 42 cm wide,41 cm high when used on the cross-legged table, and 68 cm maximum height when sitting on a chair. In the test, the RULA score was 2, which means moderate risk and further treatment is needed with a total budget required of IDR 647.100,-
Rancang Bangun Sistem Transmisi Pada E-Bike of PPNS Muh. Halim Nur Aziz; Tri Andi Setiawan; Fipka 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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Abstract

Transportation is a basic need and plays an important role to support people's daily activities. However, over time, traffic density cannot be handled properly so that it causes traffic irregularities, air pollution, and wasteful use of fuel energy. The need for fuel oil has increased drastically, causing an increase in the price of fuel oil which until now the price is still unstable. Since the decline in vehicle mobility caused by the lockdown, the level of air pollution has decreased compared to before the COVID-19 pandemic. The existence of alternatives and new breakthroughs in vehicles that are more environmentally friendly and efficient based on electricity is an option due to the use of renewable energy such as electric bicycles. The vehicle is currently undergoing very rapid development so that with this innovation it can support the vision of the Indonesian state to achieve Net Zero Emissions in 2060. To achieve this, it can be done by developing a transmission system on bicycles to increase optimal power efficiency and save power so that in the future these bicycles can be used for longer distances. To solve this problem the author uses the Ulrich method. Of the three designs made, a design with a flywheel and motor drive was chosen which was combined into 2 shafts, one of which later became the pedal shaft for the bicycle pedal. Then, the cost of making this transmission system itself costs IDR 3,315,000.
Design Analysis of Bottle Leaktester Machine through DFMA Method Mukhamad Fahmi; Dhika Aditya Purnomo; Anda Iviana Juniani
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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This article describes the design analysis process for bottle leak detection machine components using the Design for Manufacturing and Assembly (DFMA) approach. The Boothroyd-Dewhurst DFMA approach was used to verify existing design efficiency, handling ratios, and fitting ratios. SolidWorks is used to represent study objects in three dimensions. The results of this study, the assembly time for the existing design is 30,53 minutes, the manufacturing time is 20,19 minutes and the total cost is $1819,58. The DFA Index of a bottle leak detection machine is 13,3. The implementation of the DFMA method provides recommendations for design improvements with the aim of reducing manufacturing costs and improving design efficiency

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