Forging, manufacturing process

Figure 7.9 Schematic illustration of a single frame steam forging hammer. Reprinted, by permission, from Doyle, L.E., Manufacturing Processes and Materials for Engineers, 2nd ed., p. 254. Copyright 1969 by Prentice-Hall, Inc.

A 2-phase program was conducted. The first phase was a materials and process study. The second phase dealt with the manufacture of a selected high-performance weapon component in prototype quantity to demonstrate the applicability of the developed PM forging process. A processing specification and an economic evaluation of the developed manufacturing process also was included... 

Ti-6-22-22S is a reasonably forgeable alloy with comparable unit pressiires (flow stresses), forgeability, and crack sensitivity to the a-P alloy Ti-6A1-4V. The final microstructure of Ti-6-22-22S forgings is developed by thermomechanical processing in forging manufacture tailored to achieve specific microstructxu al and mechanical property objectives (see table). Thermomechanical proc-... 

The process of rolled ring forging is used in the manufacture of seamless rings. A hollow cylindrical billet is rotated between a mandrel and pressure roll to reduce its thickness and increase its diameter. 

---