Jinsoo
Kim
Sponsored
By: CODEF
Abstract
A
preliminary experiment to investigate drilling burr formation on titanium
Ti-6Al-4V was carried out. Two different types of carbide drill were
used to observe effects of variation of feed rate and cutting speed
on drilling burr formation. No coolant was used. Quantitative measurement
of height and thickness of burrs did not yield much useful information
because relatively uniform and small burrs were formed under all conditions.
However, we could categorize the burrs as several groups based on their
shape, which is more important in studying the burr formation mechanism
and deburring issue. Heat generation due to friction between the drill
and workpiece during drilling was believed to be the main influence
that decides the final burr shapes.
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