A systematic approach for cost optimal tolerance design

Dimitrellou, SC; Diplaris, SC; Sfantsikopoulos, MM

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