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| Investment casting process |
the basics of the investment casting process 1. wax injection wax replicas of the desired castings are produced by injection molding. these replicas are called patterns. 2. assembly the patterns aree, to form a casting cluster or assembly. 3. shell building the shell is built by immersing the assembly in a liquid ceramic slurry and then into a bed of extremely fine sand. up to eight layers mayramic is dry, the wax is melted out, creating a negative impression of the assembly within the shell. 5. conventional casting in the conventional process, the shell is filled with molten metal by gates, sprue and pouring cup become one solid casting. (hitchiner prefers to use its superior countergravity casting technology.) 6. knockout when the metal has cooled and solidified, the ceramicg. 7. cut off the parts are cut away from the central sprue using a high speed friction saw. 8. finished castings after minor finishing operations, the metal castings--identical to the original wax. investment casting: | why? | basics | tolerances | history | return to the hitchiner home page. last modified and validated 1-april-1998. quick links select below headlines our services profileons certifications ferrous div. gas turbine div. international div. acf mct why i.c.? the process i.c. history tolerances countergravity vr samples media library fun stuff site credits contact us home
http://www.hitchiner.com/himco/basics.html - 3k
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http://www.hitchiner.com/himco/basics.html
2005-12-03 20:28:32
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