Highly polymerized compound pattern-materials in SLS pattern is un-favorable for dewaxing and easily generating entrapped-slag in the investment castings due to high melting point and high viscosity.

• 选择性激光烧结(SLS)在熔模铸造中已得到广泛的运用,但其模料为高分子化合物,熔化温度高,熔体粘度大,不利于脱蜡,易使铸件产生夹渣。