scholarly journals REDESIGN OF MANUFACTURING PROCESS FOR GEAR TRANSMISSION BOX COMPONENT OF HAND TRACTOR

2017 ◽  
Author(s):  
Moses L Singgih ◽  
Ahmad Fatih Fudhla
Keyword(s):  
Base Material ◽  
Gear Transmission ◽  
Machining Process ◽  
Design Stage ◽  
Manufacturing Cost ◽  
Design Development ◽  
High Production ◽  
Is Integration ◽  
High Production Cost ◽  
Main Component

Design for Manufacture (DfM) is one of approach in product design development. It is integration of art design, material and process choosing in quality consideration. Gear Transmission Box (GTB) component of hand tractor is one of main component that compile hand tractor. It’s base component, other components are connected to it. It was produced in combination of casting-machining process and its manufacturing cost is the second highest that cause high production cost. To solve it, development or redesign of fabrication is needed. To realize it, load and force it detained have to be known, and than create alternatives design and process using DfM approach that yield cheaper design but still strong enough for detaining operation load. In this research, two alternatives were resulted. Both are using St 37 plate as base material and combination plate metal forming, welding and machining as basic process. The First redesign reduces manufacturing cost 11.75%, and the second 27%. From this research, it can be concluded that in design stage, there are a lot of potential things can be improved and developed that make it efficient.

Tailoring Design Development and Ideation in Catering To Industry Demands

2017 ◽  
Vol 14 (1) ◽  
pp. 67
Author(s):  
Fadila Mohd Yusof ◽  
Azmir Mamat Nawi ◽  
Azhari Md Hashim ◽  
Ahmad Fazlan Ahmad Zamri ◽  
Abu Hanifa Ab Hamid ◽  
...  
Keyword(s):  
Teaching And Learning ◽  
Industrial Design ◽  
Protocol Analysis ◽  
Early Stage ◽  
Idea Generation ◽  
Learning Processes ◽  
Design Stage ◽  
Design Development ◽  
Conceptual Design Phase ◽  
Industry Practice

Design development is one of the processes in the teaching and learning of industrial design. This process is important during the early stage of ideas before continuing to the next design stage. This study was conducted to investigate the comparison between  academic  syllabus  and  industry  practices  whether  these  processes  are  highly dependent on the idea generation and interaction related to the designer or to the student itself. The data were gathered through an observation of industry practice during conceptual design phase, teaching and learning process in academic through Video Protocol Analysis (VPA) method and interviews with industry practitioners via structured and unstructured questionnaires. The data were analysed by using NVivo software in order to formulate the results. The findings may possibly contribute to the teaching and learning processes especially in the improvement of industrial design syllabus in order to meet the industry demands. Keywords: design development, industrial design, industry demands

Novel die-sinking micro-electro discharge machining process using microelectromechanical systems technology

2006 ◽  
Vol 220 (9) ◽  
pp. 1481-1487 ◽  
Author(s):  
J-B Li ◽  
K Jiang ◽  
G J Davies
Keyword(s):  
Microelectromechanical Systems ◽  
Machining Process ◽  
Metallic Surface ◽  
Manufacturing Cost ◽  
Sem Images ◽  
Deep Reactive Ion Etching ◽  
Electro Discharge Machining ◽  
Mems Technology ◽  
Fabrication Condition ◽  
Edm Process

A novel die-sinking micro-electro discharge machining (EDM) process is presented for volume fabrication of metallic microcomponents. In the process, a high-precision silicon electrode is fabricated using deep reactive ion etching (DRIE) process of microelectromechanical systems (MEMS) technology and then coated with a thin layer of copper to increase the conductivity. The metalized Si electrode is used in the EDM process to manufacture metallic microcomponents by imprinting the electrode onto a flat metallic surface. The two main advantages of this process are that it enables the fabrication of metallic microdevices and reduces manufacturing cost and time. The development of the new EDM process is described. A silicon component was produced using the Surface Technology Systems plasma etcher and the DRIE process. Such components can be manufactured with a precision in nanometres. The minimum feature of the component is 50 μm. In the experiments, the Si component was coated with copper and then used as the electrode on an EDM machine of 1 μm resolution. In the manufacturing process, 130 V and 0.2 A currents were used for a period of 5 min. The SEM images of the resulting device show clear etched areas, and the electric discharge wave chart indicates a good fabrication condition. The experimental results have been analysed and the new micro-EDM process is found to be able to fabricate 25 μm features.

A feedback controller for milling chatter vibration control using a new response matrix

2021 ◽  
pp. 107754632098820
Author(s):  
Bashir B Muhammad ◽  
Muhammad Bashir ◽  
Mukhtar F Hamza ◽  
Mustapha Abdulhadi ◽  
Muhammad A Shehu ◽  
...  
Keyword(s):  
Controller Design ◽  
Industrial Process ◽  
Milling Process ◽  
Feedback Controller ◽  
Response Matrix ◽  
Chatter Vibration ◽  
Active Feedback ◽  
High Production ◽  
High Production Cost ◽  
Milling Chatter

A chatter mark is a result of irregular vibration that affects the milling process, which results in poor surface finish, reduced work quality, machine impairment, and high production cost. This work presents an active feedback controller design using a new response matrix to suppress the free vibration in the milling process. The proposed controller considers feed rate, tooth passing frequency, and time-varying dynamic milling force coefficients. A milling experiment verifies the effect of the proposed method. The method provides a reliable way of tackling chatter vibration in an industrial process. The procedure is technically and economically beneficial.

scholarly journals PENGEMBANGAN MEDIA INTERAKTIF PADA MATA PELAJARAN DASAR LISTRIK KELAS X TEKNIK INSTALASI TENAGA LISTRIK SMK SWASTA IMELDA MEDAN

2021 ◽  
Vol 1 (1) ◽  
pp. 64
Author(s):  
Tommi Daniel Hutajulu ◽  
Sriadhi .
Keyword(s):  
Research And Development ◽  
Interactive Multimedia ◽  
Interactive Media ◽  
Research Process ◽  
Development Stage ◽  
Vocational School ◽  
Design Stage ◽  
Average Score ◽  
Development Research ◽  
Design Development

Abstract This development research generally aims to (1) develop interactive multimedia-based learning media for Private Vocational School Imelda Medan, (2) to know the assessment of media experts and material experts on learning media, and (3) to know the feasibility of learning media based on the assessment of media experts and material experts. The method used in this research is Research and Development. This research was conducted at Imelda Private Vocational School Medan. Research and Development Results: (1) This development research process is carried out with several stages adapted from the borg and gall version development research model simplified into 4D. There are stages such as: Define, Design, Development, and Disseminate. Define stage includes definition, design stage includes storyboarding, development stage includes development of interactive multimedia-based learning media, validation of media experts and material experts, as well as revision of learning media from media experts and material experts and disseminate stage covering the trial stage. The target of this research is the Expert Lecturer of Medan State University. Testing of interactive multimedia by material validators showed that multimedia learning resulted both in material validation with an average score of 4.52 and for media validation with an average score of 4.59. Then obtained the conclusion that developed media is worth to use. Keywords : Interactive Media, Interactive Multimedia Abstrak Penelitian pengembangan ini secara umum bertujuan untuk (1) mengembangkan media pembelajaran berbasis multimedia interaktif untuk SMK Swasta Imelda Medan, (2) mengetahui penilaian ahli media dan ahli materi terhadap media pembelajaran, dan (3) mengetahui kelayakan media pembelajaran berdasarkan penilaian ahli media dan ahli materi . Metode yang digunakan pada penelitian ini adalah penelitian pengembangan (Research and Development ) . Penelitian ini dilakukan di SMK Swasta Imelda Medan. Hasil Penelitian  dan Pengembangan : (1) Proses Penelitian pengembangan ini dilaksanakan dengan beberapa tahapan yang diadaptasi dari model penelitian pengembangan versi borg and gall yang disederhanakan menjadi 4D. Adapaun tahapan tersebut yaitu : Define, Design, Development, dan Disseminate. Tahap define meliputi pendefenisian , tahap design meliputi pembuatan storyboard, tahap development meliputi pengembangan media pembelajaran berbasis multimedia interaktif ,validasi ahli media dan ahli materi, serta revisi media pembelajaran dari ahli media dan ahli materi dan tahap disseminate meliputi tahap uji coba. Sasaran penelitian ini adalah Dosen Ahli Universitas Negeri Medan. Pengujian terhadap multimedia interaktif oleh validator materi menunjukan bahwa multimedia pembelajaran  yang dihasilkan baik pada validasi materi dengan skor rata-rata 4.52 dan untuk validasi media dengan skor rata-rata 4.59. Maka diperoleh kesimpulan media yang dikembangkan layak untuk digunakan. Kata kunci : Media Interaktif, Multimedia Interaktif

scholarly journals The Design of Sensor and Transducer Learning Media based on Augmented Reality

2021 ◽  
Vol 2111 (1) ◽  
pp. 012043
Author(s):  
D Hariyanto ◽  
Zamtinah ◽  
T Triasih ◽  
M S Wati ◽  
G K Kassymova
Keyword(s):  
Online Learning ◽  
Augmented Reality ◽  
Research And Development ◽  
Design Stage ◽  
Vocational Students ◽  
Laboratory Setting ◽  
Design Development ◽  
Development Method ◽  
Analysis Design ◽  
Addie Model

Abstract This study aimed at determining the design stage of the augmented reality-based learning media for sensors and transducers course. This study employed the Research and Development method with the ADDIE model with the stages of analysis, design, development, implementation, and evaluation. This article focuses on the design stage during the process of media development. The developed learning media can be used among vocational students by visualizing the sensor and transducer components like in the real laboratory setting. The design of the developed learning media contained application storyboards and animation storyboards for practicing the six sensors. This augmented reality learning media is designed to support online learning and students’ autonomous learning in the practical course of sensors and transducers.

scholarly journals DECISION MAKING OF HAND TRACTOR GEAR BOX DESIGNS

2014 ◽  
Vol 14 (2) ◽  
pp. 101
Author(s):  
Ahmad Fatih Fudhla
Keyword(s):  
Focus Group ◽  
Analytic Hierarchy Process ◽  
Analytical Hierarchy Process ◽  
Maximum Load ◽  
Gear Transmission ◽  
Manufacturing Cost ◽  
Analytic Hierarchy ◽  
Component Design ◽  
Hierarchy Process ◽  
Tractor Gear

Ahmad Fatih FudhlaSystems Modeling Laboratory, Industrial Engineering Department, STT YPMRaya Ngelom 86, Taman, Sepanjang, Sidoarjo 61257, East Java, IndonesiaEmail: [email protected] keputusan dalam memilih desain pengembangan komponen Gear Transmission box (GTB) pada Traktor Tangan dilakukan dengan banyak kriteria. Berdasarkan diskusi Focus group dan brainstorming yang dilakukan oleh tim pengembangan produk, teridentifikasi tujuh kriteria yakni; Ketahanan material terhadap korosi, Kemampuan desain untuk diproses di lantai produksi, kemampuan desain dalam menahan beban operasi maksimum traktor tangan, pengaruh terhadap proses produksi komponen lainnya, biaya manufaktur, massa desain GTB, dan waktu proses. Kriteria tersebut dikelompokkan ke dalam kategori positif dan negative. Positif adalah kriteria yang nilainya semakin besar semakin baik, sedangkan negatif semakin kecil semakin baik. Terdapat tiga alternatif desain, yakni Desain Awal, Desain 1 dan Desain 2. Pemilihan dilakukan dengan metode Analytic Hierarchy Process (AHP). Evaluasi dilaksanakan terpisah untuk kedua kategori. Alternative terbaik adalah alternative yang memiliki nilai perbandingan terbesar antara nilai alternatif criteria positif dan negative.KataKunci: Analytical Hierarchy Process, Perbandingan Berpasangan, Perancangan dan Pengembangan Komponen ProdukABSTRACTDecision making on selection of hand tractor Gear Transmission Box (GTB) “Improvement Designs” is carried out according to many criteria. Based on the focus group and brainstorm performed by product-development teams, seven criteria are finally identified as follows; Material corrosion resistance, Manufacturability, The ability of the design to withstand the maximum load operation, influence on the other components process, manufacturing cost, mass of GTB design, and processing time. Those criteria are categorized into positive and negative characteristics. Positive criteria indicate that score which is the greater the better, by contrast, negative is the less the better. There are 3 alternatives namely Initial Design, Design 1 and Design 2. The selection is performed based on Analytic Hierarchy Process (AHP) Method. The evaluation is analyzed separately according to each category. The best alternative is the one which has the highest ratio between positive and negative criteria.Key Words: Analytical Hierarchy Process, Pair-wise Comparison, Component Design and Development

scholarly journals Fermentative Production of Mannosylerythritol Lipids using Sweetwater as Waste Substrate by Pseudozyma antarctica (MTCC 2706)

2021 ◽  
Vol 58 (4) ◽  
pp. 246-258
Author(s):  
Jayata Mawani ◽  
Jagruti Jadhav ◽  
Amit Pratap
Keyword(s):  
Soybean Oil ◽  
Industrial Applications ◽  
Commercial Production ◽  
Liquid Chromatography Mass Spectrometry ◽  
Mannosylerythritol Lipids ◽  
Pseudozyma Antarctica ◽  
Fermentative Production ◽  
Oil Concentration ◽  
High Production ◽  
High Production Cost

Abstract Mannosylerythritol lipids are glycolipid biosurfactants with promising industrial applications. However, their commercial production is hindered due to its high production cost. The current study investigates the use of sweetwater, a by-product of the fat-splitting industry in combination with soybean oil for the production of mannosylerythritol lipids using Pseudozyma antarctica (MTCC 2706). The optimum sweetwater and soybean oil concentration of 22% and 7% (w/v) yielded 7.52 g L–1and 21.5 g L–1 mannosylerythritol lipids at shake flask and fermenter level respectively. The structure and functional groups of mannosylerythritol lipids were confirmed by fourier transform infrared (FTIR) spectroscopy, liquid chromatography-mass spectrometry (LC/MS) and 1H- and 13C-nuclear magnetic resonance (NMR) analysis. Surfactant properties, such as surface tension, critical micelle concentration, foaming and emulsification of mannosylerythritol lipids were also explored.

Integrated Multiple Attributive Decision Support System for Producibility Evaluation in Ship Design

2004 ◽  
Vol 20 (03) ◽  
pp. 147-163
Author(s):  
Osman Turan ◽  
Selim Alkaner ◽  
Aykut i. Ölçer
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Ad Hoc ◽  
Labor Cost ◽  
Ship Design ◽  
Design Stage ◽  
Design Development ◽  
Shipbuilding Industry ◽  
Design For X

Ship design today can be viewed as an ad hoc process. It must be considered in the context of integration with other design development activities, such as production, costing, quality control, and so forth. Otherwise, it is possible for the designer to design a ship that is difficult to produce, requires high material or labor cost, or contains some design flaws that the production engineers have to correct or send back for redesigning before production can be done. Any adjustment required after the design stage will result in a penalty of extra time or cost. Deficiencies in the design of a ship will influence the succeeding stages of production. In addition to designing a ship that fulfills producibility requirements, it is also desirable to design a ship that satisfies risk, performance, cost, and customer requirements criteria. More recently, environmental concerns, safety, passenger comfort, and life-cycle issues are becoming essential parts of the current shipbuilding industry. Therefore, "design for X paradigm" should also be considered during the ship design stages. An integrated multiple attributive decision support system for producibility evaluation in ship design (PRODEVIS) is developed to use by industry and researchers in evaluating the producibility of competing ship designs and design features during the early stages of ship design by taking into account cost, performance, risk, and "design for X paradigm" attributes. This developed approach is a fuzzy multiple attributive group decision-making methodology where feasible design alternatives are conducted by a ship production simulation technique. In this approach, an attribute-based aggregation technique for a heterogeneous group of experts is employed and used for dealing with fuzzy opinion aggregation for the subjective attributes of the ship design evaluation problem. The developed methodology is illustrated with a case study.

scholarly journals Thermal treatment of carbon fibre reinforced polymers (Part 1: Recycling)

2019 ◽  
Vol 37 (1_suppl) ◽  
pp. 73-82 ◽  
Author(s):  
Marco Limburg ◽  
Jan Stockschläder ◽  
Peter Quicker
Keyword(s):  
Thermal Treatment ◽  
Carbon Fibre ◽  
Polymer Matrix ◽  
Energy Recovery ◽  
State Of The Art ◽  
Reinforced Polymers ◽  
Carbon Fibre Reinforced Polymers ◽  
High Production ◽  
High Production Cost

The increasing use of carbon fibre reinforced polymers requires suitable disposing and recycling options, the latter being especially attractive due to the high production cost of the material. Reclaiming the fibres from their polymer matrix however is not without challenges. Pyrolysis leads to a decay of the polymer matrix but may also leave solid carbon residues on the fibre. These residues prevent fibre sizing and thereby reuse in new materials. In state of the art, these residues are removed via thermal treatment in oxygen containing atmospheres. This however may damage the fibre’s tensile strength. Within the scope of this work, carbon dioxide and water vapour were used to remove the carbon residues. This aims to eliminate or at least minimize fibre damage. Improved quality of reclaimed fibres can make fibre reuse more desirable by enabling the production of high-quality recycling products. Still, even under ideal recycling conditions the fibres will shorten with every new life-cycle due to production-based blending. Fibre disposal pathways will therefore always also be necessary. The problems of thermal fibre disintegration are summarized in the second part of this article (Part 2: Energy recovery).

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