What are the challenges in achieving deep undercuts in investment-cast stainless steel animal sculptures?

Creating intricate animal sculptures with deep undercuts in investment-cast stainless steel presents several technical challenges. First, the mold-making process becomes highly complex due to the need for precise wax patterns that capture fine details. Deep undercuts can lead to mold fragility, increasing the risk of cracks or distortions during burnout.

Second, molten stainless steel's high viscosity makes it difficult to fully fill narrow or recessed areas, potentially resulting in incomplete casting. The cooling process also poses challenges, as uneven shrinkage may cause warping or stress fractures in delicate undercut sections.

Additionally, post-casting finishing work becomes more labor-intensive, as polishing and detailing hard-to-reach areas require specialized tools and skilled craftsmanship. Overcoming these challenges demands meticulous design planning, advanced casting techniques, and experienced artisans to ensure both structural integrity and artistic fidelity.