Experimental Study on Hot Bending of 22MnB5 Steel
Special V-shaped heat bending test was designed for 22MnB5 hot forming steel of different thicknesses. Blanks after heating 5 min at around 950°C to austenize fully were bended at different temperature conditions, and simultaneously the spring-back behavior and microstructure features of heat bending specimens were investigated. The result shows that 600-650°C temperature zone is optimal for bending forming and martensite texture transforming. Real hot forming anti-collision beams were produced at 600-650°C and comparison bending test was conducted to reveal more qualified mechanics at this temperature zone.
R. Q. Guo et al., "Experimental Study on Hot Bending of 22MnB5 Steel", Advanced Materials Research, Vols. 314-316, pp. 66-69, 2011