Overflow grooves

Overflow groove n. A small groove used in molds to allow material to escape freely to prevent flash and low part density, and to dispose of excess material. 

The characteristics of the CM process are the exact determination of the blank weight, the impression surface design, the overflow groove and the determination of the required clamping pressure. 

Fig. 19. Vertical cross-section of the wiper-blade reactor. A, Sealing arrangement B, gas phase C, rotor D, sealing E, bearing F, excess gas flow G, gas collected from the liquid exit H, overflow vessel I, liquid exit J, rotor blades K, gas feed L, adjustable shaft M, baffles N, reactor shell O, cooling jacket P, cooling water feed and exit Q, sampling port R, grooves S, liquid phase T, gas-liquid interface U, top and bottom plates and V, liquid feed. (After Manor and Schmitz, 1984 also from Chaudhari et al., 1986, by courtesy of Marcel Dekker, Inc.).

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