A successive forging process was developed to produce a long plate having an inclined cross-section as shown
in Fig. 1. After the plate is fed into the compression region (Fig. 1(a)), the long plate is forged by a punch to form
an inclined cross-section (Fig. 1(b)). The plate is then fed again into the compression region with the same forging
interval for the next compression process (Fig. 1(c)). These steps are repeated.