NSF Young Investigator: Machine Tool Accuracy Enhancement

本研究项目将考虑准确性评估和准确性增强的双重问题。原则上，如果预先知道机器工作空间中每个位置的定位误差，则可以通过软件进行校正。要做到这一点，必须分离和研究产生错误的原因。这些误差来源包括机器滑动的制造公差，由热引起的变形和由于重力引起的挠度。基于软件的纠错提供了巨大的潜在经济回报。商品级机床可能能够以非常适中的成本实现更高的精度水平，从而使它们与专门为高精度工作设计的更昂贵的机器竞争。该研究项目的成功完成将有助于美国机床企业重新获得竞争优势。

9358138 Ziegert This research project will consider the dual problems of accuracy assessment and accuracy enhancement. In principle, if the positioning errors at each location in the workspace of the machine are known in advance, they can be corrected in software. To accomplish this, the causes of the errors must be isolated and studied. These error sources include manufacturing tolerances of the machine slides, deformations caused by heat, and deflections due to gravity. Software based error correction offers a large potential economic payback. Commodity grade machine tools may be able to achieve substantially higher accuracy levels at a very modest cost, thus making them competitive with more expensive machines specifically designed for high precision work. Successful completion of this research project may help the US machine tool companies to regain a competitive advantage.