Evolution of arc welding Design in welding MicroTack - Kemppi

Using FastROOT
welding technology
in pipe welding was
presented at Kemppi’s
welding school. The
fi gure shows post-weld
fi nishing.
24
Kemppi ProNews 1 • 2008
FastROOT – a fast route to
productivity
On 14th November last year, a group of representatives
from the metal industry gathered at
Kemppi’s plant in Okeroinen, Lahti, to discuss
the possibilities off ered by modifi ed welding
processes. The theme of the seminar, ‘A Faster
Route’, referred to the greater speed and improved
productivity brought to root pass welding
by the FastROOT process.
The theory and practice of modifi ed short-arc welding
processes met at the Okeroinen plant of Kemppi in Lahti,
with the presentations at the FastROOT seminar morning
given by one expert after another.
To begin with, a group of Kemppi’s welding research
experts shed light on the background for the development of
application-specifi c arcs, and the possibilities provided by
using the FastROOT process in root pass welding instead
of slower methods.
Jyri Uusitalo, a welding engineer at Kemppi, and industrial
services manager Mikko Veikkolainen described the
technical basis for the FastROOT process and presented
an overview of the special features in its use. Ari Ahto
approached the subject from a practical standpoint by
describing the experiences at Hollming Works Oy in using
the FastROOT process to weld a body pipe for a winch.
High-speed camera is an important tool in
welding research
In his presentation, Petteri Jernström, welding technology
manager at Kemppi, discussed the interdependence between
theory and practice. He explained how basic research on
the arc creates a basis for clear development of welding
characteristics, and even for the emergence of new welding
innovations.