Performance Evaluation of a Parallel and a Hybrid Machine Tool

Published

October 16, 2008

Author(s)

Johannes A. Soons, S M. Athavale, R Furness

Abstract

vances in both the technology and cost of controllers have enabled the commercial introduction of machine tools with a parallel configuration of the positioning axes. In theory, this radical change in design enables improvements in key machine characteristics but also poses significant challenges.  This report is part of a project led by the Ford Motor Company to evaluate the current generic technology of parallel-kinematic machine tools as applied to automotive manufacturing.  Its goal is to evaluate which promises of this new technology have been realized and which challenges remain.  A key component of the study is the actual performance evaluation of typical parallel mahcines as selected by the Ford Motor Company.The NIST activities described in this report focused on (1) an initial qualitative assessment of generic parallel machine tool technology and (2) the definition, execution, and analysis of tests on a parallel and a hybrid machine tool for the following performance characteristics:-Geometric accuracy and repeatability (not including subsystems)-Compliance and hysteresis (static)-Thermal stability (including environmental response)-Contouring accuracy and CNC performance (instrumented)-Machining of test workpieces

Citation

Journal of Research (NIST JRES) - 6567

Report Number

6567

NIST Pub Series

Journal of Research (NIST JRES)

Pub Type

NIST Pubs

Keywords

hybrid machine tool, machine tool, parallel kinematics, parallel machine tool, performance evaluation

Citation

Soons, J. , Athavale, S. and Furness, R. (2008), Performance Evaluation of a Parallel and a Hybrid Machine Tool, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 26, 2024)