Static pressing units

Profiles can be manufactured with static pressing units (autoclave, upper ram press) as well as with semicontinuous or continuous units. Semicontinuous systems, like intermittent compression molding, enable the manufacture of continuous profiles. A distinction has to be made if the profile is open or closed. Open continuous profiles like U-, and triple V-profiles, can be manufactured with simple molds whereas the manufacture of closed profiles (e.g., double 1-profile or rectangular hollow profile) can only be realized with an increased mold complexity. Figure 1.218 illustrates a profile mold for the manufacture of open double-V profiles. This mold consists of... 

Figure 27 Static yield stress per unit cell and 5deld strain as a function of volume fraction for perfectly ordered 2-D system. (From Ref 85, with permission from Academic Press.)...

Press brake technology remained relatively static until the early eighties. At this time, servo technology was developed in Europe. Servo technology was quite unique and did not come into the United States until approximately... 

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