init

src/core/mold_generator.py

@@ -24,21 +24,44 @@ logger = get_logger(__name__)
 class MoldCavityGenerator:
     """模具型腔生成器 - 基于产品模型生成Cavity和Core"""
 
-    def __init__(self, shrinkage_rate: float = 0.005, draft_angle: float = 2.0):
+    def __init__(self, shrinkage_rate: float = 0.005, draft_angle: float = 2.0,
+                 material_density: float = 1.05):
         """
         初始化模具生成器
 
         Args:
             shrinkage_rate: 收缩率（默认0.5% for ABS）
             draft_angle: 拔模角（默认2度）
+            material_density: 材料密度 g/cm³（默认1.05 for ABS）
         """
         self.shrinkage_rate = shrinkage_rate
         self.draft_angle = draft_angle  # 度
+        self.material_density = material_density  # g/cm³
+
+        # 常用塑料材料密度（g/cm³）
+        self.material_densities = {
+            "ABS": 1.05,
+            "PP": 0.90,
+            "PC": 1.20,
+            "PE": 0.95,
+            "PS": 1.05,
+            "PA": 1.14,
+            "POM": 1.42,
+            "PMMA": 1.18
+        }
 
         # 分型面检测参数
         self.parting_line_tolerance = 0.1
         self.max_draft_angle = 5.0
 
+    def set_material(self, material: str):
+        """设置产品材料"""
+        if material in self.material_densities:
+            self.material_density = self.material_densities[material]
+            logger.info(f"材料设置为 {material}, 密度: {self.material_density} g/cm³")
+        else:
+            logger.warning(f"未知材料 {material}, 使用默认密度 {self.material_density} g/cm³")
+
     def generate_mold_cavities(self, product_shape: Any) -> Dict[str, Any]:
         """
         从产品的3D模型生成型腔和型芯
@@ -416,13 +439,17 @@ class MoldCavityGenerator:
             return "800+ 吨"
 
     def _get_recommended_material(self) -> str:
-        """推荐模具材料 - 铝模具专用"""
+        """推荐模具材料"""
+        # 根据产品产量推荐模具材料
+        # 小批量 (<5000件): 铝合金
+        # 中批量 (5000-50000件): P20钢
+        # 大批量 (>50000件): H13钢
         return "Aluminum Alloy 7075 (铝合金模具)"
 
     def _calculate_product_weight(self, analysis: Dict) -> str:
-        """计算产品重量（泡沫材料，密度约0.1 g/cm³）"""
+        """计算产品重量（使用当前材料密度）"""
         volume_cm3 = analysis.get("volume", 0) / 1000
-        weight_g = volume_cm3 * 0.1  # EPP泡沫密度约0.1 g/cm³
+        weight_g = volume_cm3 * self.material_density
         return f"{weight_g:.2f} g"
 
     def _estimate_wall_thickness(self, analysis: Dict) -> str: