Cost of cutting tools and total machining costs as a function of the cutting-tool reliability in automatic flow lines
- 1 May 1982
- journal article
- research article
- Published by Taylor & Francis in International Journal of Production Research
- Vol. 20 (2) , 187-200
- https://doi.org/10.1080/00207548208947760
Abstract
This paper explains an approach to establishing the total reliability of cutting tools on feeding automatic machine lines as a function of time, and based on this the establishment of cutting-tool costs and total machining costs as a function of cutting-tool reliability. Based on observations, made over a long period, cutting-tool reliability is established for certain operations (Weibull distribution), and the total reliability for the whole line established as the product of the individual operations. Cutting-tool costs are shown as the sum of tool replacement, sharpening and depreciation costs, and total machining costs as the sum of machining values, machine tools and cutting tools. By variation of the cutting-tool replacement time, the tabular change dependencies are obtained as a function of cutting-tool replacement time. By elimination of replacement time from the above dependencies, the cutting-tool cost changes and machining costs are obtained as a function of the cutting-tool reliability. These could prove valuable in the choice of optimal cutting-tool replacement times.Keywords
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