Innovation
MicroTack revolutionizes the tack welding of thin sheet metal
June 18, 2019
Tack welding is one of the most important work phases before welding. In tacking, the structural parts are combined with short tack welds in preparation for the actual welding. The tack welds keep the parts in the correct position in relation to each other until the welding has been done.
Petteri Jernström
Petteri Jernström
Petteri Jernström
Vice President, Technology at Kemppi Oy until February 2020. A technology innovator with extensive experience across a variety of sectors and roles in the welding industry. Curious about discovering, learning, and inventing new ways of doing things. Petteri holds a Doctor of Science degree in Welding Technology from the Lappeenranta University of Technology, Finland.
Related products
Product family
The new master of AC and DC TIG welding, MasterTig sets new standards for weld quality, usability, and power efficiency. Its modular design ensures that your machine exactly meets your needs.
More blog posts
Rolex fixed by welding
A Norwegian Rolex owner saved a fine sum of money when the wristband of his valuable timepiece was fixed by welding. The owner tried to take the watch to various watchmakers in Oslo to have it repaired. Several attempts were made to fix the wristband by, for instance gluing, but they all failed. One of these craftsmen suggested welding to fix the wristband but did not want to try it himself, in case the heat was to cause even more damage.
Manual welding
Up to 38 % savings with Reduced Gap Technology
The groove angle has a direct impact on the efficiency and productivity of welding heavy metal structures. Kemppi's new solution, Reduced Gap Technology (RGT) changes the understanding of narrow gap welding. The new technology challenges conventional joint design principles.
Innovation
The diversity of welding
Joonas Innanen, 27, is one of the newer generation of welders. Although he studied traditional methods of welding from MIG to TIG, he has also adopted new technologies during his career.
People
Safety that keeps up with welders' challenges and changing risks
Welding safety has become increasingly demanding. The hazards at the arc remain constant, but modern working conditions mean exposure can accumulate over longer shifts and in tighter indoor spaces. As a result, welding PPE needs to be treated as both protection for the welder and proof of compliance. At Kemppi, welding safety PPE is designed and validated in practice through clear requirements, welder-led feedback, and verified compliance with EU PPE Regulation 2016/425, CE marking processes, and relevant EN standards.
Safety, Welding ABC
Eurosatory 2026 And the Future of Defence Manufacturing
Eurosatory 2026 highlighted a clear shift in modern defence manufacturing. While defence systems are becoming more digital, networked, and autonomous, their foundation remains physical. From armoured vehicles and artillery to industrial resilience, welding quality, steel structures, and production discipline remain paramount to defence readiness.
Digitalization, Innovation
How AI Supports Quality, Traceability, and Flexibility in Robotic Welding
The AITOOLS1 webinar explored how AI-assisted process control, machine vision, synchronized data, and machine learning models are advancing robotic welding automation, improving quality management, traceability, and production flexibility for demanding industrial production.
Welding automation, Innovation, Digitalization
