The invention discloses a method for replicating a
metal relic with
high fidelity, and the method comprises the following steps: (1) an original
metal relic is scanned directly by utilizing a
laser scanner and a three-dimensional (3D) model of the original
metal relic is acquired by
reverse engineering; (2) the real process of real investment shell
casting is simulated by adopting a
finite element method, and the 3D model is modified according to the
simulation result (such as contraction); (3) according to the modified 3D model, an accurate
wax model is produced by adopting a quick prototyping method; and (4) a shell is produced by utilizing the
wax model and
liquid metal is poured according to the best
simulation technological parameters, thus obtaining the replication with
high fidelity. In the method, the accurate
wax model can be produced without touching the original relic, and therefore, the relic cannot be damaged; and the method also introduces
reverse engineering, quick prototyping and
casting process simulation technology into the replication of the metal relic, and compared with the traditional method, the produced metal relic replication has
high fidelity and can achieve the effect of representing the relic verve.