High-speed machining (HSM) has had a large impact on the design and fabrication of aerospace parts and HSM techniques have been used to improve the quality of conventionally machined parts as well. Initially, the trend toward HSM of monolithic parts was focused on small parts, where existing machine tools have sufficient precision to machine the required features. But, as the technology continues to progress, the scale of monolithic parts has continued to grow. However, the growth of such parts has become limited by the inability of existing machines to achieve the tolerances required for assembly due to the long-range accuracy and the thermal environment of most machine tools. Increasing part size without decreasing the tolerances using existing technology requires very large and very accurate machines in a tightly controlled thermal environment. As a result, new techniques are needed to precisely and accurately manufacture large scale monolithic components. Previous work has established the fiducial calibration system (FCS), a technique, which, for the first time provides a method that allows for the accuracy of a coordinate measuring machine (CMM) to be transferred to the shop floor. This paper addresses the range of applicability of the FCS, and provides a method to answer two fundamental questions. First, given a set of machines and fiducials, how much improvement in precision of the finished part can be expected? And second, given a desired precision of the finished part, what machines and fiducials are required? The achievable improvement in precision using the FCS depends on a number of factors including, but not limited to: the type of fiducial, the probing system on the machine and CMM, the time required to make a measurement, and the frequency of measurement. In this paper, the sensitivity of the method to such items is evaluated through an uncertainty analysis, and examples are given indicating how this analysis can be used in a variety of cases.
Skip Nav Destination
e-mail: bawoody@uncc.edu
e-mail: kssmith@uncc.edu
e-mail: hocken@uncc.edu
e-mail: jamiller@uncc.edu
Article navigation
June 2007
Technical Papers
A Technique for Enhancing Machine Tool Accuracy by Transferring the Metrology Reference From the Machine Tool to the Workpiece
Bethany A. Woody,
Bethany A. Woody
Mechanical Engineering and Engineering Science Department,
e-mail: bawoody@uncc.edu
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223
Search for other works by this author on:
K. Scott Smith,
K. Scott Smith
Mechanical Engineering and Engineering Science Department,
e-mail: kssmith@uncc.edu
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223
Search for other works by this author on:
Robert J. Hocken,
Robert J. Hocken
Mechanical Engineering and Engineering Science Department,
e-mail: hocken@uncc.edu
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223
Search for other works by this author on:
Jimmie A. Miller
Jimmie A. Miller
Mechanical Engineering and Engineering Science Department,
e-mail: jamiller@uncc.edu
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223
Search for other works by this author on:
Bethany A. Woody
Mechanical Engineering and Engineering Science Department,
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223e-mail: bawoody@uncc.edu
K. Scott Smith
Mechanical Engineering and Engineering Science Department,
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223e-mail: kssmith@uncc.edu
Robert J. Hocken
Mechanical Engineering and Engineering Science Department,
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223e-mail: hocken@uncc.edu
Jimmie A. Miller
Mechanical Engineering and Engineering Science Department,
University of North Carolina at Charlotte
, 9201 University City Boulevard, Charlotte, NC 28223e-mail: jamiller@uncc.edu
J. Manuf. Sci. Eng. Jun 2007, 129(3): 636-643 (8 pages)
Published Online: October 9, 2006
Article history
Received:
June 16, 2006
Revised:
October 9, 2006
Citation
Woody, B. A., Scott Smith, K., Hocken, R. J., and Miller, J. A. (October 9, 2006). "A Technique for Enhancing Machine Tool Accuracy by Transferring the Metrology Reference From the Machine Tool to the Workpiece." ASME. J. Manuf. Sci. Eng. June 2007; 129(3): 636–643. https://doi.org/10.1115/1.2716718
Download citation file:
Get Email Alerts
A Review on Metallic Drilling Burrs: Geometry, Formation, and Effect on the Mechanical Strength of Metallic Assemblies
J. Manuf. Sci. Eng (April 2025)
A Generalized Machining Process Damping Model for Orthogonal Cutting
J. Manuf. Sci. Eng
Related Articles
Quality and Inspection of Machining Operations: CMM Integration to the Machine Tool
J. Manuf. Sci. Eng (October,2009)
Autonomous Calibration of Hexapod Machine Tools
J. Manuf. Sci. Eng (February,2000)
Design and Evaluation of a New General-Purpose Device for Calibrating Instrumented Spatial Linkages
J Biomech Eng (March,2009)
Development of a Novel Artifact as a Reference for Gear Pitch Measuring Instruments
J. Manuf. Sci. Eng (October,2009)
Related Proceedings Papers
Related Chapters
Accuracy-associated Models
Mechanics of Accuracy in Engineering Design of Machines and Robots Volume I: Nominal Functioning and Geometric Accuracy
Accuracy of an Axis
Mechanics of Accuracy in Engineering Design of Machines and Robots Volume I: Nominal Functioning and Geometric Accuracy
Assessment of Geometrical Accuracy
Mechanics of Accuracy in Engineering Design of Machines and Robots Volume II: Stiffness and Metrology