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Search Publications by: M Alkan Donmez (Fed)

Displaying 76 - 100 of 122

Ultra-Precision Linear Motion Metrology of a Commerically Available Linear Translation Stage

November 18, 2011

Author(s)

Ronnie R. Fesperman Jr., M A. Donmez, Shawn P. Moylan

Many new compact ultra-precision linear translation stages with exceptionally long ranges of motion on the order of tens of millimeters and positioning resolutions on the order of a nanometer are finding their way into emerging nanotechnologies. This class

Methods, Practices, and Standards for Evaluating On-Machine Touch Trigger Probing of Workpieces

October 31, 2010

Author(s)

Ronnie R. Fesperman Jr., Shawn P. Moylan, M A. Donmez

This paper presents work being performed by NIST to evaluate test methods prescribed by the new draft standard for determination of on-machine measuring performance of numerically controlled machine tools [1]. The measuring performance of a machining

Ultra-Precision Linear Motion Metrology

June 23, 2010

Author(s)

Ronnie R. Fesperman Jr., M A. Donmez, Shawn P. Moylan

Many new emerging applications of nanotechnologies require the use of compact precision linear translation stages that have positioning resolution on the order of a nanometer and an exceptionally long range of motion on the order of tens of millimeters

Development of a metrology frame to improve the positioning accuracy of micro/meso-scale machine tools

August 3, 2009

Author(s)

Shawn P. Moylan, Daehie Hong, Bradley N. Damazo, Johannes A. Soons, M A. Donmez

The small size of the work volume of micro/meso-scale machine tools often presents problems for calibration and error compensation, but at the same time provides opportunity for solutions not practical on the traditional scale. Measuring tool position with

Impact of automation on precision

August 3, 2009

Author(s)

M A. Donmez, Johannes A. Soons

Automation has significant impacts on the economy and the development and use of technology. In this section, the impacts of automation on precision, which directly influences science, technology, and the economy, are discussed. As automation enables

Implementation of a metrology frame to improve positioning of micro/meso-scale machine tools

July 15, 2009

Author(s)

Shawn P. Moylan, Bradley N. Damazo, M A. Donmez

Metrology frames have proven to be an excellent tool for improving the accuracy of machine tools, and because of the small sizes and travels involved, they may be an excellent fit for micro/meso-scale machine tools. We have developed a metrology frame and

Repeatability Analysis on the Tool Point Dynamics for Investigations on Uncertainty in Milling Stability

November 11, 2007

Author(s)

Kang-Jae Lee, M A. Donmez

Stability analysis is needed to maximize milling performance while avoiding chatter. However, such an analysis is time-consuming, requiring the use of sophisticated instrumentation, and has significant level of uncertainty, which impedes the widespread use

A Novel Cooling System to Reduce Thermally-Induced Errors of Machine Tools

June 14, 2007

Author(s)

M A. Donmez, Mahn-Hee Hahn, Johannes A. Soons

This study explores a method to reduce thermally-induced errors of machine tools through temperature stabilization with compressed air. The method uses inexpensive, specialy-shaped, silicon tubing wth small silts. Compressed air forced through such tubing

Evaluation of an Inexpensive Method of stabilize the Temperature of Machine Tool Components

February 1, 2006

Author(s)

Mahn-Hee Hahn, M A. Donmez, Johannes A. Soons

One of the best approaches for maintaining uniform temperature across a machine tool structure thus minimizing thermal deformations is removing the heat at the heat sources. This study evaluates the effectiveness of using inexpensive Personal Air

Robust Optimization for Smart Machining System: An Enabler for Agile Manufacturing

November 1, 2005

Author(s)

Laurent Deshayes, Lawrence A. Welsch, Robert W. Ivester, M A. Donmez

This paper reports our efforts towards developing a mathematical and information framework for optimization of machining processes within a Smart Machining System (SMS). An SMS uses diverse integrated technologies that enable an enterprise to: (1) produce

Comparison of Measurement Procedures for Evaluating Thermal Errors of Machine Tools due to Moving Linear Axes

June 1, 2005

Author(s)

Michael L. McGlauflin, Johannes A. Soons, M A. Donmez

This paper investigates an alternative method to assess thermal errors due to the heat generated by moving linear axes using a spindle-mounted probe and simple artifacts. The angular errors introduced by the warm-up of individual axes (X, Y and Z) are

Performance Evaluation of a Prototype Machine Tool for Machining Meso-scaled Parts

January 1, 2003

Author(s)

Bradley N. Damazo, M A. Donmez, Michael L. McGlauflin, J B. Werkmeister, Johannes A. Soons, S C. Bryant, Alex Slocum

With the increased prevalence of meso-scaled products and feature sizes, new tools are needed to bridge the gap between fabrication processes tailored for micrometer and millimeter sized features [1-4]. Compared to its traditional counterpart, a small

A Methodology for Compensating Errors Detected by Process-Intermittent Inspection

October 1, 2001

Author(s)

Herbert T. Bandy, M A. Donmez, David E. Gilsinn, Michael Kennedy, Kenneth W. Yee, Alice V. Ling, Neil D. Wilkin

This report describes principles and methodology for compensating geometric errors of machined parts due to machining processes. The error tendencies are identified by on-machine inspection of the part before the finish cut. Tool path adjustments

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