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Re: lost wax bonze casting problem
Posted by Philip Whitley on November 01, 1998 at 07:45:23:
In Reply to: lost wax bonze casting problem posted by Jerry Vaughan on October 30, 1998 at 14:19:23:
I had similar problems casting in the mid-1970's (Museum School of Art, Greenville, SC). Voids in our molds were caused by thicker sections shrinking. As the bronze cooled it siphoned metal from the thinner sections leaving gaps. We solved this by attaching resevoirs (wax bulbs) to thicker parts or within the gating system to feed metal back to the piece as it shrank.