Laser helper roll bending formation device and method thereof
A laser-assisted, roll-bending technology, used in laser welding equipment, other manufacturing equipment/tools, welding equipment, etc., can solve problems such as reducing production costs, reducing molding passes, work hardening, etc. The effect of reduced times and high machining accuracy
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[0031] Example 1:
[0032] Using carbon dioxide laser, the shaped cross section is like Figure 2A Shown. The DP800 high-strength steel plate with a thickness of 1.5mm and a width of 72.32mm is formed at room temperature, the forming speed is 80mm / s, the laser power is set to 300W, the scanning speed is 6.5mm / s, and the surface of the steel plate rises to 700℃ in a short time. Larger its forming limit, after roll forming Figure 2B Shown is a roll-bent steel with a complex sharp-angled shape.
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[0033] Example 2:
[0034] Using helium-neon laser, forming cross-section like Figure 3A Shown. Forming a Q235 plain carbon steel sheet with a thickness of 1mm and a width of 140mm at room temperature. The forming speed is 100mm / s, the laser power is 1000W, the scanning speed is 6.5mm / s, and the spot diameter is 3mm. After roll forming, perform laser-assisted forming to obtain Figure 3C Shown is the roll-bending steel with rib structure.
Example Embodiment
[0035] Example 3:
[0036] Using carbon dioxide laser, the shaped cross section is like Figure 4A Shown. SUS304 stainless steel plate with a thickness of 1.2mm and a width of 140mm is formed at room temperature, the forming speed is 60mm / s, the laser power is 2000W, and the laser cutting speed is 3m / min. After roll forming, laser-assisted cutting is performed. When the laser beam sweeps across the surface of the sheet, the local temperature of the steel sheet instantly rises to above 2000°C. After cutting sequentially, the following results are obtained: Figure 4C U-shaped steel with six holes shown.
[0037] In summary, the laser-assisted roll forming device and method of the present invention apply laser-assisted heating to roll forming, which solves the problem of difficult forming due to work hardening in conventional roll forming. low cost. In addition, the present invention integrates roll bending forming, laser cutting and bending forming of the plate, with good adjusta...
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