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Drilling Profile
Construction
Beams
Structural beams with different cross-sectional the dimensional and form accuracy of a hole
profiles (H-, I-, channel-beams, etc.) are and its lack of effect on material properties. In
commonly used elements in areas such as civil addition, drilling, in contrast to punching, places
engineering and railway, naval and other heavy no limitation on the thickness of an
industries. The profile cross section significantly area to be holed.
increases stiffness in the required directions
and therefore ensures the safe functioning Drilling holes in profile structural beams and in their
of structured frames under heavy loads. In assemblies is a common operation and is improving
construction, structural beams are bolted, riveted in this high-demand task.
or welded. Hence, there is a need for making
holes in the beams to allow assembling. When producing metal structures, the more
popular machine tools for drilling beams, channel
In addition, there is a need to produce holes in steel and girders are CNC machines and
beam foundations and built-up frames such as lines, especially designed for such operations.
column bases, box girders, etc. Punching holes Usually this manufacturing plant houses large-
is a very productive method for making holes size machines that feature several working
in structural elements; however, it is not free spindles performing drilling operations in various
from disadvantages. Punching produces burr directions, and mechanisms for the movement of
formations that should be cut while bolting or a machined workpiece and the spindles. As these
riveting. Typically, a punched hole is tapered and machines are intended for workpieces of different
not cylindrical. Punching leads to work-hardening widths and heights, often drilling operations are
in close-to-hole areas which may affect materials’ performed at high tool overhang. In many cases,
properties and as a result, reduce elements’ the workholding of profile-section structures
performance. Also, punching holes in already leaves much to be desired. Therefore when drilling
assembled structures has serious limitations. beams, girders and similar elements, the reliable
functioning of a cutting tool used in unstable
Drilling, despite its reduced productivity, has a conditions is an important factor.
number of undeniable benefits with respect to
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