Hot press forming

  • 16-Mar-2010 05:24 EDT
Hwashin.jpg

Hwashin uses hot press forming (HPF) technology in the manufacture of tubular beams. During HPF, boron steel is heated to 950°C (1742°F) to transform the microstructure into an austenite state, while satiating the die transforms it into a martensite state. The resultant tensile strength of the material is increased to over 1500 MPa (217,557 psi). The process increases fatigue performance of the torsion beam and reduces the mass compared to a V-beam by decreasing the seven separate pieces into one tubular beam part. The weight reduction reduces emissions to meet environmental regulations, while the HPF technology improves durability for the chassis life cycle and reduces maintenance and repair.

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