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The process reviewed here goes by two names –
scarfing and deburring – and has a commensurably
large and various kit of tools: mounting units;
towbars with impeders, notching carriers and cutting
rings; holders, cassettes, blades and inserts; chip
deflectors; and bead chopper units.
Together with others for special-dimension
applications, these tools are employed in one of three
processes – mechanical, hydraulic or mechanical-
hydraulic – to polish to perfection both the inside and
outside surfaces of tube and pipe.
It is a challenging remit; and, given the strong
association of scarfing/deburring with welding,
one that must be reliably discharged every time.
Imperfectly scarfed weld beads could cause a faultless
production run of high-frequency longitudinally welded
tube or pipe to fail inspection.
The companies reviewed here are in the business of
ensuring that such a thing is not only unthinkable but
also impossible.
Tube scarfing
systems & tools
Photo: Ernst Blissenbach GmbH (see page 74)