Papers by Keyword: Manufacture

Abstract: This paper presents the development and optimization of a 1.2 kV Silicon Carbide (SiC) Trench MOSFET with a Bottom P-well (BPW), designed to achieve a compact structure and a simplified fabrication process. By performing the BPW implant before the trench etching process and utilizing it in conjunction with a shallow trench, the process complexity was reduced while maintaining effective corner coverage of the trench gate. Comprehensive simulations and unit process analyses were conducted to evaluate the effects of the hard mask sidewall angle, P-well, and JFET implant doses on device characteristics. Optimal performance was achieved by introducing an additional P+ implant in the P-well region, which significantly enhanced breakdown voltage without affecting channel properties. The optimized device demonstrated a specific on-resistance (R_on,sp) of 2.2 mΩ·cm², a breakdown voltage (BV) of 1600 V, and a threshold voltage (V_th) of 3 V, with potential further reductions in R_on,sp through substrate thinning.

Abstract: Batik is one of the Indonesian heritage culture that needs to be preserved, especially for traditional batik using wax to form batik pattern and resist dyeing color. One way to draw batik on fabric is by using a stamp. Nowadays, most of traditional batiks are still produced manually with limited capacity. On other hand, the number of batik craftsman is decreased due to lack of regeneration of young craftsman. This study aimed to develop software for designing stamped batik, along with its production steps, and information used to execute the design on batik machine with moving module. The software required a batik stamp design, size of fabric (maximum 12 m), pattern of stamping, and color. Digital image of the batik design and its colour will be generate along with the G-Code for executing the design on batik machine with moving module. Batik machine with moving module consists of 13 meters working table and a bridge runs along the table by carrying stamp and wax module. For each step of the bridge, stamp module will stamp wax on fabric along its width. These movements are controlled by programmable computer with G-Code from batik design system. Batik design system and the machine have been tested and is able to give information about size of fabric used, kind of dye used, and G-Code for controlling the machine.

Abstract: By the end of 2012 the population of motorcycle reached 77.7 million units with their average composition on the road reached 82%. The number of motorcycles produce CO₂ emissions which have a negative impact on global warming. Global warming occurs because the greenhouse effect of CO₂ in the atmosphere absorb heat energy and obstructed the heat from the atmosphere to the higher surface.The data collected in this research is the data of motorcycles fuel consumption. The method of data processing by converting the fuel consumption data to CO₂ emissions using the equation of the Clean Development Mechanism (CDM) AMS-III Methology. The purpose of this research is to create models of CO₂ emissions on a motorcycle against several influential independent variables such as manufacture, service life, engine displacement (cc) and travel speed. Method analysis using correlation and regression analysis.Based on the regression analysis, the best combination that produces the lowest value of CO₂ is a motorcycle with a combination of manufacture number 2, 5 years service life, engine displacement of 111-149 cc and travel speed of 60 km/h. Whereas from the the correlations analysis obtained the motorcycle of manufacture number 2 able to decrease up to 15% CO₂ and motorcycles with engine displacement of 111-149 cc is able to reduce CO₂ emission from 17% to 43%. While the service life of one year to six years resulting CO₂ emissions which relatively similar with only difference of 15%. Furthermore, the travel speed of 60 km/h able to reduce CO₂ emissions by up to 62%.

Abstract: This paper presents the structure design and the performance testing method of a novel type of gas braking control system. Based on PDSOFT 3D design method double gas detection instrument control system has been carefully designed, effectively using the space of the case body. Using a direct acting overflow pressure reducing control technology, effectively through gas level decompression pressure were quickly and accurately is reduced to 0.7Mpa and 0.45Mpa, according to the tightness test results show, the tester can keep the pressure stability of the error is less than 0.1%. With quick joints of interlocking sealing design technology based on, settle the problem of connecting and sealing between the traction chassis brake system pneumatic hose and gas path instrument brake control pipeline, detection of gas pipeline. In the design of DC regulated power supply, the innovation to the DC voltage stabilizing circuit modular design, can effectively avoid the input voltage fluctuation on the influence of the load end, to ensure the stable operation of the independent power supply module tester. The tester can be easily used to test their performance general traction air braking system chassis in the stationary state, and can be directly used digital display reading way test data will be output directly, save the test time, improve the test efficiency.

Abstract: Machining can be performed on virtually all solid materials even though the term commonly applies to the cutting of metals, alloys, plastics and woods. Machining is a mechanical process where excess material from a work piece can be removed by cutting action to produce a part of specified geometrical shape and surface finish. In this research we will analyze and investigate whether there is a possibility to use the palm oil based bio wax material for machining applications. At the moment different ferrous, non-ferrous materials and industrial blue wax have been used for prototype models, training purpose by different industries, educational and training organizations. However the price of such material is very expensive. Hence an attempt is made to substitute these material by the palm oil based bio wax produced in Malaysia. With it, engineers can generate prototype to evaluate even minor design changes without breaking the budget. To the best of researcher’s knowledge, no previous work has been carried out nationally or worldwide on the use of palm oil based bio wax material in the manufacture of a strong industrial wax. This research work gives the approaches taken in this direction.

Abstract: On the basis of analyzing the performance evaluation research of supply chain collaboration and following the level principle of modeling and the construction principles of it, the paper build the index system for manufacturing supply chain collaboration performance evaluation combined with the four necessary links involved of it, namely, logistics, the flow of funds, information flow and market stream. And the synthesized evaluation of it is discussed by using the fuzzy comprehensive evaluation method. And then, taking a typical electronic product manufacturing supply chain as an example for the empirical analysis, some beneficial conclusions and relevant guidance advices have been put forward. Hoping it can provide a theoretical basis and valuable references for carrying out the supply chain collaboration in our manufacturing enterprises.

Abstract: Typical molding methods-Selective Laser Sintering (SLS) were presented on the basis of principle, formation, development of RPM(Rapid Prototyping and Manufacturing). Take mobile front cover as the example, the process of making sample used the method of SLS was introduced.RPM technology for rapid product development model, not only can improve the design quality and shorten the trial period, and can be modified at any time by CAD and re-validation, which has strong market competitiveness. RPM is a multi-disciplinary in a modern manufacturing techniques, will be more widely used in areas such as new product development. In short, rapid prototyping technology will be developed into a kind of technology can be adopted widely in enterprise, bring huge economic benefits to the enterprise and society.

Abstract: In this paper we describe the practical application of RFID in production and logistics at the Norwegian board and packaging manufacturer Glomma Papp. Delivery of the system took place during late 2013 and 2014. The company’s goal was to automate its production flow and logistics. There were two options: bar codes or RFID.

Abstract: Three dimensional (3-D) geometric shape measurements have found wide applications in the fields of industrial manufacturing, fast reverse engineering, quality control, biomedical sciences, etc. In the present paper we focus our attention on Reverse engineering. It starts from an existing product, and creates a CAD (Computer Aided Design) model, for modification or reproduction of its design. This kind of process is usually undertaken in order to redesign a system for better maintainability or to obtain a copy of a system without access to design from which it was originally produced. There are many different methods for acquiring shape data. Tactile methods represent a popular approach to shape capture. The most commonly known forms are Coordinate Measuring Machines (CMMs) and mechanical or robotic arms with a touch probe sensing device. Non-contact methods use light, sound or magnetic fields to acquire shape from objects. In the case of contact and non-contact, an appropriate analysis must be performed to determine the positions of points on objects surface. The aim of this paper is to present a new reconstruction method of three-dimensional measuring system for objects acquisition: reverse engineering based on structured light system. This technique consists in projecting a known pattern of pixels (structured light) on an object: the way in which this pattern is deformed encountering the object surfaces, allows vision systems (a couple of monochromatic digital cameras) to calculate depth information necessary for surfaces digitization. The subsequent application of this methodology has been to reengineer an aeronautical component that has changed over time and divergent from initial project. At last have been studied proposals and possible solutions that ensure an higher quality of manufactured products and a substantial savings in costs of production system of the product itself.

Abstract: In view of the existing problems in manufacturing and repairing parts of single Equipment, this paper proposes a implementation scheme for digital alteration, and introduces the composition and principle of it, to achieve optimal maintenance technical scheme, the purpose of accurate maintenance, the maintenance quality assurance, and improving production efficiency.