SYMPOSIUM ON HEAVY PRESSES FOR LIGHT METAL FORGING AND EXTRUSIONS - REQUIREMEHTS FOR LARGE, LIGHT METAL FORGINGS EXTRUSIONS IN THE AIRCRAFT INDUSTRY

This paper discusses the Aircraft Industry requirements for large forgings and extrusions and supports these requirements by analyzing the effect of the trend in performance on aircraft structure, function and production. The paper confirms that large integral structural components satisfy these trends better than a continuation of conventional “bits & pieces” structure. It further concludes that large forgings and extrusions are the most economical methods to produce integral type structure.

In addition, detail requirements of large forgings and extrusions relative to physical properties, tolerances and refinements are presented.

Statistical studies are presented to indicate the high potential use of large forgings and extrusions.