Considering the die-cavity roughing being a 2.5D cutting, a novel cutting force surface model is created based on orthogonal cutting tests.

• 鉴于模具型腔粗加工常采用2.；5维加工，提出一种通过正交切削试验建立切削力曲面模型用于模具型腔粗加工进给率优选的新策略。