Title:  A comparison between a methodological statistical approach and a commercial software for evaluating tolerance chains
Internal authors: 
Issue Date:  2008
Abstract:  This paper reports two different approaches to the analysis of tolerance chains. A simple part is considered and a functional dimensioning scheme is described. Then, an analysis of the tolerances is performed with a commercial software package and with a methodological statistical procedure. In particular, the procedure proposed can be summarised into two main steps. First, each single technological operation (for example, the drilling of a hole) is simulated by extracting, from a statistical distribution typical of the machine tool, the parameters characteristic of the manufacturing procedure. Then, a simulation is performed, to verify if the real features of the part can simultaneously fit the virtual gage. This method of acceptance/rejection of a part is according to the ISO/ASME standards and is representative of the real functional requirements of the part.
URI:  http://hdl.handle.net/11584/106634
ISBN:  978-84-8363-275-8
Type: 4.1 Contributo in Atti di convegno

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