Efficiency measures of process plans for machined parts

被引:7
|
作者
Britton, GA [1 ]
Thimm, G [1 ]
Fok, SC [1 ]
Jiang, F [1 ]
机构
[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore
关键词
ideal tree; machining; process planning; rooted tree;
D O I
10.1007/s001700170109
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents an overview of the authors' rooted tree technique for process planning. The overview provides the foundation for the main part of the paper, which explains how the rooted tree can be used to develop efficiency measures of process plans. The efficiency measures are determined by comparing an actual tree and its subgraphs with an "ideal" tree. The "ideal tree" is one that minimises the number of manufacturing operations. The paper proves that the "ideal tree" is a directed design dimension graph plus one operation. Three measures of efficiency are presented: finishing efficiency, pre-forming efficiency, and overall efficiency. The practical value of the efficiency measures is demonstrated by presenting measures of plans for four industrial parts. It is also argued that the efficiency measures provide a quantitative assessment of process plans that can be used to improve them and manufacturing technology.
引用
收藏
页码:819 / 824
页数:6
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