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Reproducible post-weld treatment through controlled treatment intensity – safe and easy to use.
Extend the service life of existing structures and operate them more economically.
Design new structures for improved fatigue performance and greater cost efficiency.
How PIT can effectively prevent damage, failures and resulting costs.
PIT (Pneumatic Impact Treatment) is a reproducible HFMI (High-Frequency Mechanical Impact) process for the post-weld treatment of welded joints. It introduces compressive residual stresses and improves the weld toe geometry, significantly increasing fatigue strength and fatigue life.
In addition to extensive scientific evidence confirming the HFMI (High-Frequency Mechanical Impact) effect, the University of Stuttgart has demonstrated the high reproducibility of PIT without the risk of overtreatment.
The application of HFMI is covered by the following standards and guidelines:
→ Additional listings are in progress.
Learn more about current projects, applications and successful uses of PIT across different industries.
PIT System and User Training for One of the World’s Most Exciting Research Environments
Since 2008, PITEC has rapidly emerged as the global leader in the field of HFMI (High-Frequency Mechanical Impact). Through many years of experience and continuous development, PITEC has established itself as the international leader. In 2018, PITEC was acquired by Hermann Fliess & Co. GmbH. Hermann Fliess & Co. GmbH .
Fliess is a manufacturer of welding consumables with particular expertise in high-strength steels. With PIT enabling the use of high-strength steels even under fatigue conditions, a unique synergy arises.
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