Karina Leis
Sponsored
By: DaimlerChrysler
Abstract
Burr
formation in intersecting holes presents a particular challenge. This study is being
conducted in order to develop a model for this specific kind of burr formation. The model
will be based on materials properties and yield stress theory. The emphasis will be on
comparing two specific drill geometries. A set of experiments with several drill diameters
and these two drill geometries is carried out. The experiments will be evaluated by means
of metallographic analysis of the burr cross section and micro-hardness testing as well as
by measurements of the feed force and torque during the drilling
process.
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