A New Method for Assembling Hemispheres Joint Design and Production Tooling.

摘要

A simplified method for assembling ammunition items --which normally would require a threading,welding,crimping,or similar method for joining component parts --was developed by the Ammunition Engineering Directorate's Application Engineering Laboratory. By machining or forming the proper configuration at interface of mating parts,items can be assembled by applying pressure axially in a standard press operation. The unique feature of this method is utilizing the components themselves as a tool to produce a curl interlock that has excellent holding characteristics. (Author)