Show simple item record

Material characterization for finite element simulation of orthogonal cutting and drilling.

dc.contributor.authorZhang, Lin
dc.contributor.advisorNi, Jun
dc.date.accessioned2016-08-30T15:19:16Z
dc.date.available2016-08-30T15:19:16Z
dc.date.issued2003
dc.identifier.urihttp://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqm&rft_dat=xri:pqdiss:3079557
dc.identifier.urihttps://hdl.handle.net/2027.42/123506
dc.description.abstractMachining is used extensively in many industries and is one of the most common manufacturing processes. Research in the field of machining and drilling modeling has spanned the past few decades. Open research issues include material and frictional properties for use in finite element models, machining temperature measurement, and drill temperature model. A coupled mechanical-thermal finite element model of orthogonal cutting process is developed to predict machining forces and temperature. Two critical inputs to the finite element model are the material flow stress property and the tool-chip interface frictional property. Iterative schemes based on simple analytical equations were first developed to determine the flow stress and frictional parameters for use in finite element simulation. A two-stage finite element simulation of the machining process is carried out next using those material and frictional parameters. The model predicts machining forces, temperature distribution of the tool, as well as stress, strain, and temperature distributions of the chip for various cutting conditions. Temperature distribution of the tool is measured by an infrared thermal imaging system. The predicted and experimental machining forces and temperatures are shown to be in good agreement. A drill temperature model, which includes both the chisel edge and main cutting edges of the drill, is presented. The model uses a new method of calculating the heat flux load, which significantly reduces errors in the chisel edge region. Contrary to most previous drill temperature models, which predict that the maximum temperature always occurs at the outer cutting corner of the drill, the current model predicts that the maximum temperature can sometimes occur on the chisel edge of the drill. The predicted temperature profile by the current drill temperature model agrees with the measured temperature profile.
dc.format.extent151 p.
dc.languageEnglish
dc.language.isoEN
dc.subjectCharacterization
dc.subjectDrilling
dc.subjectElement
dc.subjectFinite
dc.subjectMaterial
dc.subjectMetal Cutting
dc.subjectOrthogonal Cutting
dc.subjectSimulation
dc.titleMaterial characterization for finite element simulation of orthogonal cutting and drilling.
dc.typeThesis
dc.description.thesisdegreenamePhDen_US
dc.description.thesisdegreedisciplineApplied Sciences
dc.description.thesisdegreedisciplineMechanical engineering
dc.description.thesisdegreegrantorUniversity of Michigan, Horace H. Rackham School of Graduate Studies
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/123506/2/3079557.pdf
dc.owningcollnameDissertations and Theses (Ph.D. and Master's)


Files in this item

Show simple item record

Remediation of Harmful Language

The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.

Accessibility

If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.