As documented in the article “History of Investment casting” on Engineering Product Design, the roots of investment casting trace back to ancient Egypt between 4000 and 3000 B.C. While its early use dates far into history, it was only after World War II that investment casting gained significant industrial importance and popularity. This surge in interest was driven by the burgeoning demand for aircraft engine and airframe components.
The evolution of lost wax casting is remarkable. From its early days when clay was molded around bee’s wax patterns to the introduction of ceramic shells and specialized dewaxing ovens, investment casting has seen transformative changes.
Traditionally, the high manufacturing cost of master dies restricted investment casting to large production quantities. However, recent years have witnessed a game-changing development with the advent of 3D printing for wax patterns. This innovation has eliminated the cost barrier associated with dies, making investment casting viable for shorter production runs.
Advantages of Investment Casting:
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