Browsing University of Waterloo by Supervisor "Erkorkmaz, Kaan"
Now showing items 1-14 of 14
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Chip geometry, cutting force, and elastic deformation prediction for gear hobbing
(University of Waterloo, 2023-08-08)The machining industry is constantly challenged through increasing demands for productivity and stringent part quality requirements such as dimensional accuracy and surface quality. Physics-based models are becoming more ... -
Controller Design for Active Vibration Damping with Inertial Actuators
(University of Waterloo, 2019-05-06)In the machining industry, there is a constant need to improve productivity while maintaining required dimensional tolerances and surface quality. The self-excited vibration called chatter is one of the main factors limiting ... -
Cutting Mechanics of the Gear Shaping Process
(University of Waterloo, 2017-05-12)In the machining industry, there is a constant need to increase productivity while also maintaining dimensional tolerances and good surface quality. For many classical machining operations (e.g. milling, turning, and ... -
Cycle Time Reduction of 5-axis Laser Drilling via Time-optimal Trajectory Generation and Sequence Optimization
(University of Waterloo, 2019-04-30)Cycle time reduction is one of the crucial tasks in manufacturing that needs to be achieved to maximize productivity and profits. Laser drilling processes, depending on the size and complexity of the parts, require few ... -
Digital Twin Feed Drive Identification for Virtual Process Planning
(University of Waterloo, 2018-10-04)Computer numerical controlled (CNC) machines have become an integral part of the manufacturing industry, allowing companies to increase the accuracy and productivity of their manufacturing lines. The next step to improving ... -
Dynamic Model Identification and Trajectory Correction for Virtual Process Planning in Multi-Axis Machine Tools
(University of Waterloo, 2019-07-24)In today’s industry, the capability to effectively reduce production time and cost gives a manufacturer a vital advantage against its competitors. Specifically, in the machining industry, the ability to simulate the dynamic ... -
Influence of feed drives on the structural dynamics of large-scale machine tools
(University of Waterloo, 2021-12-23)Milling is one of the most widely used processes in the manufacturing industry and demands machines with high productivity rates. In large machine tool applications, the cutting capability is mainly limited by the appearance ... -
Mechatronic Design, Dynamics, Controls, and Metrology of a Long-Stroke Linear Nano-Positioner
(University of Waterloo, 2016-12-01)Precision motion systems find a broad range of application in various fields such as micro/nano machining tools, lithography scanners, testing and metrology machines, micro-assembly, biotechnology, optics manufacturing, ... -
Modeling, performance evaluation, and post-process planning for directed energy deposition
(University of Waterloo, 2021-12-15)This dissertation focuses on improving part quality and process reliability by proposing methods for predicting process outcomes, detecting defects and process anomalies in DED. These methods include physics-based process ... -
Multivariable System Identification, Enhanced Disturbance Rejection, and Precision Motion Control for CNC Machine Tool Feed Drives
(University of Waterloo, 2021-08-27)In this thesis, precision modeling, multivariable system identification, and advanced motion control techniques are developed in order to improve the positioning accuracy and disturbance rejection of machine tool servo ... -
Time-Optimal Feedrate Planning for Freeform Toolpaths for Manufacturing Applications
(University of Waterloo, 2018-03-19)Optimality and computational efficiency are two desired yet competing attributes of time-optimal feedrate planning. A well-designed algorithm can vastly increase machining productivity, by reducing tool positioning time ... -
Time-Optimal Trajectory Generation and Way-Point Sequencing for 5-Axis Laser Drilling
(University of Waterloo, 2016-10-28)Laser drilling provides a highly productive method for producing arrays of holes on planar and freeform shaped components. Industrial applications include fuel injection nozzles, printed circuit boards (PCB’s), inkjet ... -
Virtual Model Building for Multi-Axis Machine Tools Using Field Data
(University of Waterloo, 2023-01-26)Accurate machine dynamic models are the foundation of many advanced machining technologies such as virtual process planning and machine condition monitoring. Viewing recent designs of modern high-performance machine tools, ... -
Virtual Model of Power Skiving Cutting Mechanics
(University of Waterloo, 2019-04-29)Power skiving is a high-speed gear cutting operation which involves feeding a rotating cutting tool into a synchronously rotating workpiece at an angled orientation, creating a continual chip removal cutting action. It is ...