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GEOMETRIC ERROR ASSESSMENT OF A NANOMECHANICAL DRILL

机译:纳米机械钻的几何误差评估

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摘要

Manufacturability of micro and nano systems has gained importance with the advent of microelectromechanical systems (MEMS). Whereas the manufacturability of macro systems has been a widely researched subject, the behavior of MEMS devices in large scale manufacturing operations is virtually an unexplored field. Therefore, in order to predict resulting product characteristics, theories developed for macro-scale manufacturing are currently being extended to micro-systems. This research employs computer aided engineering (CAE) tools in the determination of the final dimensional quality of a drilled hole created by a nano-drill. In order to obtain a valid prediction of the drilled-hole dimensions, an adequate knowledge of the processes occurring during nano drilling and the factors affecting these processes are necessary. A complete analysis requires consideration of the kinematic, static and dynamic factors that contribute to the error in the drill tip. In this paper, only the kinematic errors that affect the hole geometric quality are considered. The causes of these kinematic errors and their effect on the variation of the drilled hole are also investigated. The resulting hole size will be considered to be the result of the "stack-up" of the errors in the tool.
机译:随着微机电系统(MEMS)的出现,微米和纳米系统的可制造性变得越来越重要。尽管宏系统的可制造性已被广泛研究,但MEMS器件在大规模制造操作中的行为实际上是一个尚未探索的领域。因此,为了预测最终的产品特性,为大规模制造而开发的理论目前正在扩展到微型系统。这项研究采用计算机辅助工程(CAE)工具来确定由纳米钻头产生的钻孔的最终尺寸质量。为了获得对钻孔尺寸的有效预测,必须充分了解纳米钻孔过程中发生的过程以及影响这些过程的因素。完整的分析需要考虑造成钻头误差的运动,静态和动态因素。在本文中,仅考虑影响孔几何质量的运动学误差。还研究了这些运动学误差的原因及其对钻孔变化的影响。所得到的孔尺寸将被认为是工具中错误“堆积”的结果。

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