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Updated: May 8, 2026
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Knowledge Based Cloud FE Simulation of Sheet Metal Forming Processes
Published on: December 13, 2016
Velocity-dependent shear band formation in blanking processes
Lisa Winter1, Sven Winter2, Katja Martinitz3
1Institute of Materials Science and Engineering, Materials and Surface Engineering Group, Chemnitz University of Technology, 09107, Chemnitz, Germany. lisa.winter@mb.tu-chemnitz.de.
Scientific Reports
|May 6, 2026
Summary
High-speed blanking of steel creates adiabatic shear bands (ASB), improving surface quality. Higher speeds promote ASB formation, reducing surface roughness for advanced manufacturing.
Area of Science:
- Materials Science
- Manufacturing Engineering
- Tribology
Background:
- High-speed blanking is crucial for manufacturing high-strength sheet components.
- Adiabatic shear bands (ASB) form during blanking, influencing surface properties.
- The evolution of ASBs with process conditions requires further investigation.
Purpose of the Study:
- To investigate the influence of blanking speed on ASB formation and surface geometry.
- To analyze the microstructure and hardness of blanked surfaces at varying speeds.
- To understand ASB evolution under identical macroscopic stress states.
Main Methods:
- Blanking of press-hardened 22MnB5 steel at punch velocities from 0.12 to 17 m/s.
- Utilizing mechanical, hydraulic, and electromagnetic drive concepts.
- Analyzing surface geometry, ASB characteristics, microstructure, and hardness.
Main Results:
- Blanking velocity significantly impacts ASB length, width, microstructure, and hardness.
- A fully developed ASB across the sheet thickness was achieved at 17 m/s.
- High-speed blanking resulted in significantly lower surface roughness compared to conventional methods.
Conclusions:
- Blanking speed is a critical parameter for controlling ASB formation and surface characteristics.
- High-speed blanking enables the creation of functional surfaces with reduced roughness.
- This research provides a basis for optimizing high-speed blanking processes for tailored surface properties.
Keywords:
Adiabatic shear band (ASB)Blanking speedDrive conceptHigh-speed blankingLow-alloyed steelShear strain rateMore Related Videos
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