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 69 for “"Machine Tools"”.
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Power required for driving machine tools
Made available in DSpace on 2017-11-30T22:46:19Z (GMT). No. of bitstreams: 2 5962687.pdf: 1823279 bytes, checksum: fb12f637e54b286d3dac0718c2163fed (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1904
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Power required to drive machine tools
Made available in DSpace on 2017-11-30T22:46:23Z (GMT). No. of bitstreams: 2 5958626.pdf: 7951184 bytes, checksum: 6a0eb5ea25fc91f1271f83551f018d1a (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1897
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Evaporative cooling effects in precision machine tools
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Digital Twin for Machine Tools and Manufacturing Systems
… and Cyber- Physical System (CPS) framework for machine tools and manufacturing systems, addressing the challenges of model fidelity, knowledge extraction and cost- effective deployment in industrial environments. The study makes three key contributions. Firstly, it proposes a lightweight hybrid …
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Volumetric error compensation for 5-axis machine tools
… error compensation method for large 5-axis machine tools. The compensation method presented here uses tool tip measurements recorded throughout the axis space to construct a position-dependent geometric error model that can easily be used for error compensation. The measurements are taken …
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Design and Analysis of Parallel Link Machine Tools
Embargo set by: Seth Robbins for item 85248 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Models for the development of precision machine tools
Thesis (B.S. and M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Reconfiguration and tool path planning of hexapod machine tools
Hexapod machine tools have the potential to achieve increased accuracy, speed, acceleration and rigidity over conventional machines, and are regarded by many researchers as the machine tools of the next generation. However, their small and complex workspace often limits the range of tasks they can …
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Volumetric error compensation for industrial robots and machine tools
… popular volumetric error compensation method for machine tools is to compute compensation tables in axis space with tool tip volumetric measurements. However, machine tools have high-order geometric errors and some workspace is not reachable by measurement devices, the compensation method suffers …
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Accuracy and Calibration of Conventional and Parallel Link Machine Tools
… then implemented on a three-axis parallel link machine tool. The final results show that successful calibration of a parallel link machine tool is possible when the research presented in this thesis is implemented.
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Design and implementation issues for Stewart Platform configuration machine tools
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Auto -Calibration of Machine Tools Exploiting Redundancy, Transitivity, and Error Projection
The third part of this work explores the possibility of employing single dimensional measurements in estimating parameters of an error model that has been developed for multi-dimensional measurements. A mechanism of decomposing single dimensional measurement into multi-dimensional components is …
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A constraint-based system for the design and evaluation of precision machine tools
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Elements for the design of precision machine tools and their application to a prototype 450mm Si-wafer grinder
Next generation precision machines will require ever more rigid elements to achieve the required machining tolerances. The presented work focuses on the application of ultra stiff servo-controllable kinematic couplings and hydrostatic bearings to minimize the structural loop of multi-axis precision …
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Multi-variable optimal numerical control using adaptive model for identification of thermally induced deformation in high-speed machine tools
… below ±10 om in the whole working range of the machine tool has not yet been achieved. Since it is impossible to design machine tools that are thermally stable within this range, a feedback control system emerges as a logical and practical solution. The major problem in implementing real-time …
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Optimal choice of machine tool for a machining job in a CAE environment
Developments in cutting tools, coolants, drives, controls, tool changers, pallet changers and the philosophy of machine tool design have made ground breaking changes in machine tools and machining processes. Modern Machining Centres have been developed to perform several operations on several faces …
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Novel Magnet Structures for Mechanically Robust Linear Motors
… form the backbone to many nanometer-precision machine tools, providing precise and smooth force to drive heavy stages at high speeds. In the magnet arrays of linear motors, the permanent magnets must be attached to the backrion to transmit force to the rest of the system. This connection …
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Mancais hidrostáticos aplicados em tornos de fabricação nacional
… of plane hydrostatic bearing system, as used in machine tools, particularly lathes. Incompressible fluid flow conditions and parameters are first studied and defined for the bearing system. A digital computer program is then presented, which is capable of determining bearing dimensions and …
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