The roof reinforcement beam is the "invisible skeleton" of the vehicle, and its strength directly affects the safety of the entire vehicle in rollover accidents.
In the application of the forming machine, the selection of materials and the matching process are the most easily overlooked aspects.
Why is the material the key?
High-strength steel: High strength, but difficult to form and prone to springback;
Aluminum alloy: Good lightweight effect, but more prone to cracks during bending;
Galvanized sheet: Strong corrosion resistance, but the surface protective layer is easily scratched during forming.
What does the forming machine need to solve?
For high-strength steel: Control the springback by using segmented passes and local pressure;
For aluminum alloy: The mold needs surface hardening and increased lubrication to reduce cracks;
For galvanized sheet: The rollers must have wear-resistant coatings to avoid the zinc layer from being scratched.