One-Time Roll-Forming Technology for High-Strength Steel Profiles with “日” Section

Table 1

Orthogonal experimental table of 3 factors and 3 levels.

Levels	Flange height h (mm)	Sheet thickness t (mm)	Forming speed (mm·s^−1)
Level 1	60	2.0	50
Level 2	70	2.5	100
Level 3	80	3.0	150