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 17 of 17 for “"CNC Machines"”.
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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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Evaluation and development of a production system with CNC machines for SMEs in the context of the concept of Industry 4.0
This thesis explores the integration of CNC machines into the framework of Industry 4.0, with a focus on the challenges and opportunities for small and medium-sized enterprises (SMEs). As Industry 4.0 promotes the digital transformation of traditional manufacturing processes through technologies …
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Development of a flexible manufacturing system (FMS)
… environment to integrate old stand-alone CNC machines, a FANUC robot, a conveyor and a Robot Positioning Device (RPD) into a Flexible Manufacturing System (FMS). Also described are the benefits that South African manufacturers still using old CNC machines could achieve if they implemented …
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Design and evaluation of CNC-user interfaces
Computer Numerically Controlled (CNC) machines are common pieces of equipment in manufacturing plants. In recent years, CNC-user interfaces have been evolving from CNC command languages to menu based and direct manipulation interfaces. However, there have been few efforts to evaluate CNC-user …
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Investigation on quantitative assessment of energy consumption and the associated sustainability performance of CNC milling machines
… and the associated sustainability aspects of CNC machines and operations is the key driver for this research, albeit incorporating its implementation and application perspectives on shopfloor machining operations is the predominant goal as well. The research presented consists of two …
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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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Automation of NC Programming with Artificial Intelligence
… automation of computer numerically controlled (CNC) programming, the process by which cutting tool and operation parameters governing CNC machines are determined, has potential to yield dramatic benefits to machining companies. Within the context of Midwest-based machining firm Orizon, two …
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Automated throughput optimisation: a cost effective I4.0 solution
… trigger probe with aging, albeit, functional CNC machines, establishing a closed loop system. Through intelligent G-code utilisation, this system automates the recording and management of Process Control Indicators (PCIs) while optimising inspection frequencies and throughput. By adopting this …
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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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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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M28 Fixed wing transport aircraft cost reduction
… as nacelle deflection cover was automated using CNC machines. A set of commodity purchasing strategies were formulated for forgings, avionics, raw materials, interior and composite materials. Lastly, a discrete Kaizen event was described to aid redesign-for-manufacturing.
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CAD enabling smart handtools
… at hand. On the other extreme, devices like CNC machines and 3D printers lack a way for the user to engage with the fabrication and to iteratively change design parameters in realtime. In this work, I present, two handtools that build on the philosophy of Free-D ([1] and [2]), a smart milling …
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Discrete cellular lattice assembly
… were of similar kinematic form: both gantry-type CNC machines: a ShopBot and a custom built relative robotic assembler. The results showed superior performance by the global coordinate frame system. An error budget analysis of the two systems showed that the locally referenced, lattice based …
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Self-Assembling Modular Systems: Enhancing Efficiency and Accuracy in Robotic Lattice Assembly
… of modularity in new environments, such as CNC machines and factory automation. This vision intersects with the domain of modular self-reconfigurable robotics and robotically-assembled structures. The work presented here extends from existing research and is particularly focused on three key …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… initial investment of Computer Numeric Control (CNC) machines is a huge obstacle to many companies. It is, therefore, imperative that avenues of adapting these machines to perform a variety of operations than what they were initially designed for are sought and thereby make the investment much …
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Tool design for the production of a collimator on a 3-axes vertical milling centre
… initial investment of Computer Numeric Control (CNC) machines is a huge obstacle to many companies. It is, therefore, imperative that avenues of adapting these machines to perform a variety of operations than what they were initially designed for are sought and thereby make the investment much …