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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A study of methods for numerical control of machine tools

Griveaux, Bernard Georges Jean 08 1900 (has links)
No description available.
2

An octree and face oriented approach for NC machining

黃永耀, Wong, Wing-yiu. January 1989 (has links)
published_or_final_version / Mechanical Engineering / Master / Master of Philosophy
3

The networking of NC and CNC machines to facilitate the electronic transfer of CAD/CAM data

Hill, Mark Jeffrey 27 January 2015 (has links)
No description available.
4

Tool path trajectory analysis and machining strategy for corneringcut

Choy, Hang-shan., 蔡恆生. January 2003 (has links)
published_or_final_version / Mechanical Engineering / Doctoral / Doctor of Philosophy
5

Part surface roughness modeling and process optimal control of cylindrical grinding

Hecker, Rogelio Lorenzo 12 1900 (has links)
No description available.
6

Approximation of quadratic functions by circular arcs: application to numerically controlled machining

Cotten, H. P. (Henry Pritchett) 05 1900 (has links)
No description available.
7

Design and analysis of a CNC system for machining and monitoring

Peng, Jie January 1989 (has links)
The development of unmanned machining systems has been a recent focus of manufacturing research. Computer Numerical Control (CNC) units, which monitor and control many tightly coupled machining tasks, are inseparable parts of the unmanned manufacturing system. This thesis addresses the detailed design and analysis of a modular CNC system for a milling machine. The feed drive control system of the machine tool is thoroughly studied. The mathematical model for the feed drive control system, which consists of a motion controller, power amplifiers and DC-servo motors, is developed and experimentally verified. A method of estimating cutting forces from current drawn by feed drive motors is developed. The viability of the current sensor as a feeding-force sensing component is illustrated and experimentally tested on the milling machine. Successful application of the current sensor to tool breakage detection in milling operation is presented. The performance of the multi-axis contouring system in precision machining is discussed. The contouring errors induced by feed drive positioning systems in CNC machine tools is investigated using the state space model of the CNC system. The influence of the cutting force on the accuracy of machining is shown to be negligible for feed drives driven by ball leadscrews. Various control strategies for the improvement of machining accuracy are tested in the simulation studies. / Applied Science, Faculty of / Mechanical Engineering, Department of / Graduate
8

Analysis and design of a simulated numerically controlled machine tool

Lingaraj, Bangalore P. January 1964 (has links)
Call number: LD2668 .T4 1964 L735 / Master of Science
9

Design and specification of a PC-based, open architecture environment controller

Wiggins, John Sterling 05 1900 (has links)
No description available.
10

Influence of load perturbations on the time-response of an incremental digital feedback numerical control machine tool

Suzan, Jean-Louis 12 1900 (has links)
No description available.

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