Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"CNC machine"”.
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A CNC machine guiderail wear in-process monitoring system
… for monitoring the guiderail wear on medium size CNC machines. The system possesses the function of measuring the wear state on guiderails in an in-process way, which is more functional and efficient than the traditional method. In this research, two different types of sensors for monitoring each …
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Comparative study of international marketing strategy of Japanese and Taiwanese CNC machine tool industry in the ASEAN region
… War II, the USA and Europe dominated the world's machine tool industry, exporting costly high-performance machine tools. Emerging from the ravages of war and a decimated manufacturing base, Japanese and Taiwanese machine tool manufacturers were committed to catching up with the leading edge …
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ΑΥΤΟΜΑΤΗ ΣΧΕΔΙΟΜΕΛΕΤΗ ΚΑΙ ΕΚΠΟΝΗΣΗ ΠΛΗΡΟΦΟΡΙΩΝ ΨΗΦΙΑΚΗΣ ΚΑΘΟΔΗΓΗΣΗΣ ΓΙΑ ΤΗΝ ΚΑΤΕΡΓΑΣΙΑ ΟΔΗΓΗΤΙΚΩΝ ΚΑΜΠΥΛΩΝ
… OF A PART PROGRAM FOR THE MANUFACTURING WITH A CNC MACHINE. THE DESIGN PHASE REQUIRESTHE AUTOMATIC SELECTION OF OPTIMAL MATHEMATICAL FUNCTIONS DEALING WITH THE CONDITIONS IN EVERY TRANCIENT REGION, WHICH IS NECESSARY FOR THE CALCULATION OF CAM DIMENSIONS. THIS AUTOMATION LEADS TO A PRECISE AND …
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Vision-based localization for robot-CNC hybrid manufacturing
… by retrofitting Computer Numerical Control (CNC) machines with deposition heads, adding spindles and deposition heads to robots, or developing part localization methods to transfer parts from an additive cell to a CNC machine. Here, a novel, robot-CNC hybrid configuration is introduced where …
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New control strategy for CNC machines via STEP-NC
… in the domain of computer numerical controls (CNC) where G-codes have been in use for more than half a century. STEP-NC brings richer information to CNCs presenting an opportunity for the development of more intelligent, interoperable and informative machining. The research work documented in …
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Modification of a vertical machining centre to include turning operations : an investigation
… an accelerated use of Computer Numerical Control machine tools by developed countries over the past decade resulting in manufacturing companies becoming more competitive on the world market. However, the initial cost of these machines is prohibitive to many companies in the third world countries …
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Discrete modeling of sculptured surface machining for robust automatic feedrate selection
… techniques currently used in three and five-axis CNC machining reduces milling efficiency. Manually estimated feedrates tend to be conservative and constant, greatly increasing mill time. The goal of this research is to develop robust techniques and software tools for automatically generating …
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Head & base production optimization : setup time reduction
… a flexible manufacturing system in which the machine setup is frequent. However, the lengthy CNC machine setup time in the Head & Base machining station directly affects the manufacturing capacity. This research implements Single Minute Exchange of Die (SMED) methodology and proposes a set of …
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Variations in the manufacturing of Rockwell test blocks
… the process plan, due to the variations in the CNC machine and due to the insufficient training of the workers. Improvements suggested in the machining plan could lead to reduction in machining time at grinding operation by as much as 13%.
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Device driver development and implementation for work cell control
… standards to adhere to, integrating these machines becomes a problem. This project addressed the problem by creating a software interface between robots, CNC machines and a workcell controller. The library of functions created for the Dyna CNC machine and the IBM 7545/7547 robots will aid …
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Mind Tool and Matter- Synergies in Digital Fabrication and Bamboo Craftsmanship
… an innovative low-cost digital fabrication (CNC) machine which, through an integrated workflow, enhances the possibilities of innovative design, fabrication and application of bamboo buildings in mainstream contemporary construction. This proposed methodology of design to construction can …
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Implementation of Machine Connectivity in Low-Volume High Variety Manufacturing Line
… analysis and implementation plan for enhancing machine connectivity within a manufacturing facility at SLB. The study investigates the existing limitations of the facility's connectivity infrastructure and proposes an advanced connectivity software suite as a solution, presenting a compelling …
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Analysis of the Position-Dependent Error in FTM RTT Indoor Navigation
… of millimeters. Using an Android app and a CNC machine for 2D and 3D positioning, these unusual error properties are explored in depth through experimentation. This experimentation includes evaluating the position-dependent error in both the spatial and frequency domains when varying the …
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Design and development of autonomous robotic machine for knee arthroplasty
… an OptiTrack motion capture navigation system. A CNC machine was built to drive the cutting burr across the knee joint. Multiple software applications were developed to enable the operation of the system such as communication with the navigation system, cluster marker identification and tracking, …
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Design and development of a small-scale 12S-14P outer rotor HEFSM
… fabricated using a computer numerical control (CNC) machine. The prototype has been tested experimentally using a measurement tool such as Fluke Analyser and oscilloscope. The back EMF showed a good agreement between simulation and preliminary experimental results with percentage differences …
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Geometrical Error Analysis and Correction in Robotic Grinding
… movement which is much more complex than normal CNC machine tools. Therefore, aiming to improve the robot accuracy, this work provides a novel method to define the geometrical error by using the cutting tool as a probe whilst using Acoustic Emission monitoring to modify robot commands and to …
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A Gear Hobbing Attachment for Manual Milling Machines to Facilitate the Production of Exotic Gears for Full-Scale Working Prototypes
… hobbing attachment tailored for manual milling machines. The primary objective is to create a versatile, cost-effective tool that streamlines production of standard and exotic gears, with a specific focus on gears needed to create full-scale working prototypes, to test the performance of the …
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Designing & Manufacturing Powder Skis
… materials. I began with the wooden core using a CNC machine to perfect it. Then cut out all the necessary layers including fiberglass and PTEX to go into the skis. Along with this I created a mold in order to press the rocker and camber into the ski. I did this step along with some of the design …
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Integración de las funciones de programación de máquinas herramientas de control numérico mediante una aplicación orientada a objetos
… entre los distintos sistemas CAX y los sistemas CNC presenta una serie de aspectos problemáticos: 1. En su gran mayoría, los sistemas CAX actuales no han sido diseñados para compartir información, por lo que disponen de una estructura de datos específica y cerrada. 2. Los distintos tipos de …
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Assessment of a Low Cost IR Laser Local Tracking Solution for Robotic Operations
… well as positioning accuracy assessments with a CNC machine under indoor and outdoor conditions. The results showed matching performance between day and night while still comparable to industrial standard indoor tracking solution down to centimeter precision, and matching simulated CNC trajectory …
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