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Title: Study of Accuracy of CNC Machine Tools PDF
Url: http://search.asee.org/search/fetch?url=file%3A%2F%2Flocalhost%2FE%3A...
Creator: Chattopadhyay, Sonnath
Publisher: American Society for Engineering Education
Description: The dimensional accuracies as well as surface finishes of parts produced by a CNC machine tool are strongly dependent on the motion accuracy of each axis of the machine. The overall accuracy of the machine tool is decided by the mechanical characteristics of the machine as well as the characteristics if the control system driving the individual axes. A CNC Machine is programmed to travel along a predetermined or contour, and any deviation from the programmed path is referred as the contouring error. A typical test that is used is a circular test in which the machine is programmed to travel along a circle, and the difference between the programmed path and the measured actual path is compared. The purpose of this study is to identify the various contributors to this contouring error, and in particular estimate the error due to stick slip motion using analytical techniques. It is planned to measure the errors experimentally making use of capacitance probes. The study is intended to develop an appreciation for the sources of different errors produced in a machine tool and as such forms a module in a typical semester long class devoted to manufacturing processes.
LC Classification: Technology -- Manufactures -- Production management. Operations management -- Manufacturing engineering. Process engineering -- Manufacturing processes
Technology -- Mechanical engineering and machinery -- Control engineering systems. Automatic machinery -- Study and teaching
GEM Subject: Science -- Engineering
Vocational Education -- Trade and industrial
Key Concept: Mechanical engineering -- Automation
Manufacturing -- Computer Numeric Control (CNC) machining
Resource Type: Instructional Materials
Reading Materials
Science Materials
Teaching Guides
Format: pdf
Audience: College/University Instructors
Higher Education
Secondary Education
Technical School First Cycle
Technical School Second Cycle
University First Cycle
University Second Cycle
Vocational Training
Language: English
Rights: American Society for Engineering Education
Access Rights: Free access
Date Of Record Release: 2009-09-10 03:00:03 (W3C-DTF)
Date Last Modified: 2012-06-05 15:30:55 (W3C-DTF)
Source Type: ATE Center
Source: National Center for Manufacturing Education
Full Record Views: 68
Resource URL Clicks: 13
Cumulative Rating: NOT YET RATED
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