A systematic approach for cost optimal tolerance design

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dc.contributor.author Dimitrellou, SC en
dc.contributor.author Diplaris, SC en
dc.contributor.author Sfantsikopoulos, MM en
dc.date.accessioned 2014-03-01T02:51:01Z
dc.date.available 2014-03-01T02:51:01Z
dc.date.issued 2007 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/35305
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-84862613521&partnerID=40&md5=3e05f2aaf4d503d9f9d5b724696e6a2c en
dc.subject Cost-tolerance function en
dc.subject Optimum tolerancing en
dc.subject Tolerance allocation en
dc.subject Tolerances chains en
dc.subject Tolerancing en
dc.subject.other Application examples en
dc.subject.other Chain dimensions en
dc.subject.other Component tolerances en
dc.subject.other Cost-tolerance functions en
dc.subject.other Geometric entities en
dc.subject.other Machining capabilities en
dc.subject.other Machining Process en
dc.subject.other Manufacturing cost en
dc.subject.other Mechanical assembly en
dc.subject.other Prototype system en
dc.subject.other System database en
dc.subject.other Tolerance allocation en
dc.subject.other Tolerance design en
dc.subject.other Tolerance optimization en
dc.subject.other Tolerancing en
dc.subject.other Costs en
dc.subject.other Machine shops en
dc.subject.other Machinery en
dc.subject.other Optimization en
dc.subject.other Fits and tolerances en
dc.title A systematic approach for cost optimal tolerance design en
heal.type conferenceItem en
heal.publicationDate 2007 en
heal.abstract This paper presents a new method and a prototype system for cost optimal tolerance design in mechanical assemblies. The system overcomes inefficiencies and/or handicaps met in current methods and tools that require expert cost-tolerance input referenced to the participating in the assembly chain dimensions or the availability of case-driven experimental cost-tolerance data. This is accomplished by introducing the concept of the Tolerance Element (TE), a machining process related geometric entity with attributes associated with the accuracy cost and identifiable in conformance with the standard industrial understanding. It becomes thus possible to assign cost optimum and rational component tolerances through an algorithmic mode that can be directly integrated in a CAD environment. Within this-based on the TE approach-frame, machining capability and cost per TE-class of a particular machine shop are appropriately recorded and processed and cost-tolerance functions automatically established and stored in the system database to be used for tolerance optimization. The latter once created, needs then updating only when changes take place in the machine shop resources and/or expertise. Tolerance allocation can be thus achieved with minimum manufacturing cost within the machine shop accuracy getting capability in an effort and time efficient way through realistic and machine shop focused cost-tolerance data. An application example demonstrates the method and its positive evaluation in comparison with alternative problem solutions. en
heal.journalName Proceedings of ICED 2007, the 16th International Conference on Engineering Design en
dc.identifier.volume DS 42 en

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