A young male obtained some polyethylene rope, drove to a secluded spot in the nearby woods and used it, a tree stump and his vehicle to decapitate himself.

Howmet Corporation licensed and modified the Osprey process to produce aerospace quality nickel based superalloys. The modified process, known as the Spraycast-X" process, combined vacuum induction melting with high purity argon gas atomization to produce billet and ring shape products.A variety of alloys have been processed, including: INIOO, IN713, IN718, Rene 80; Rene 125, Rene 41, Rene 95, Rene 88DT, MERL 76, Waspaloy, and AF2-1 DA-6. Electron beam melting of spray cast materials revealed excellent cleanliness.Process parameters were established to produce fine grain size (ASTM 6-8) billet up to 10" diameter and ring shape preforms up to 33" in diameter with porosity levels less than 1%. Macrosegregation and formation of gamma prime eutectic was not observed in the spray cast materials.Full density of the spray cast materials was attained via HIP processing and forging. Mechanical properties of spray cast and HIP'ed MERL 76 (no Hf) were comparable to extruded and gatorized IN1 00. Tensile and stress rupture properties of spray cast and HIP'ed Waspaloy, as well as spray cast and ring rolled Waspaloy, have exceeded the AMS 5707 specification requirements for wrought product.

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The need for advanced material processing to reduce manufacturing cost and cycle times has never been as great as at this time in our nation’s history. Howmet Corporation has licensed and modified the Osprey, or spray forming, process to produce high quality nickel base superalloys for gas turbine engine applications. The modified process, known as the “Spraycast-X™” process, combined vacuum induction melting with high purity argon gas atomization to produce billet and ring shape products. Process parameters were established to produce fine grain size (ASTM 6-8) billet up to 10” (254 mm) in diameter and ring shape preforms up to 33” (838 mm) in diameter. Mechanical properties of HIP’ed Spraycast-X plus isoforged U720 and Spraycast-X and HIP’ed MERL 76 (no Hf) were comparable to their wrought counterparts. Mechanical property data for ring rolled IN718, René 41, and Waspaloy were all above specification limits.