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Car body designs are getting more and more sophisticated to lower CO2 emissions and increase crash performance. This leads to more complex manufacturing processes. Multiple materials with different strength properties need to be joined, like high-strength steels, aluminum, castings, magnesium, carbon or plastics. At the same time, limited accessibility and short cycle times within the manufacturing process are a challenge.
Flow drill fastening is an answer to these challenges. This technology offers multi-material joining with single-sided access, using a fastener as both drill and joining element. The fastener is rotated at high speed and pressure to warm up the material. This allows the fastener to push through the material stack, forming the thread in the process – an efficient and flexible joining method. The high-quality system solutions of our K-Flow product line are designed for precise operation in tough manufacturing environments.
Flow drill fastening can join multiple layers of different materials
A strong and reliable joint entered from one side
Best alignment of joining technology, fastener and materials lead to a fast and reliable process
Removable joints enable disassembly for maintenance and repair work
By combining flow drill fastening with adhesive bonding, the dynamic joint strength and corrosion resistance are increased
With the extensive know-how of our joint analysts and process experts, we develop the ideal process parameters for your individual requirements and material combinations.
The four main stages in the flow drill fastening process
The fastener is positioned on the workpiece and rotated at high-speed. This heats up the material.
With high rotation speed (up to 9000 rpm) and high process force (up to 3000 N), the fastener is pushed through the materials.
With reduced speed and process force, the fastener drives through the material and forms a thread without cutting.
The fastener is tightened with the required final torque.
Learn more about our system components
We develop customized applications and processes that solve your joining challenge. Learn how we can support you!
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Henrob product line
SCA product line
Atlas Copco Tools Central Europe
Merwedeweg 7
NL-3336 Zwijndrecht
Telefoon: + 31 (0) 800 -022 1767
E-mail: tools.nl@nl.atlascopco.com
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