diff --git a/apps/mtm/serializers.py b/apps/mtm/serializers.py
index b84114c8..04ee0381 100644
--- a/apps/mtm/serializers.py
+++ b/apps/mtm/serializers.py
@@ -172,26 +172,38 @@ class RouteSerializer(CustomModelSerializer):
             raise ParseError('未提供操作工序')
         return super().validate(attrs)
 
-    def gen_material_out(self, instance):
+    def gen_material_out(self, instance: Route):
         """
         自动形成物料
         """
-        name = f'{instance.material.name}'
-        material_out, _ = Material.objects.get_queryset(all=True).get_or_create(type=Material.MA_TYPE_HALFGOOD, parent=instance.material, process=instance.process,
-                                                                                defaults={'parent': instance.material, 'process': instance.process,
-                                                                                          'is_hidden': True, 'name': name,
-                                                                                          'number': instance.material.number,
-                                                                                          'specification': instance.material.specification,
-                                                                                          'model': instance.material.model,
+        material = instance.material
+        process = instance.process
+        material_out = Material.objects.get_queryset(all=True).filter(type=Material.MA_TYPE_HALFGOOD, parent=material, process=process).first()
+        if material_out:
+            material_out.is_deleted = False
+            material_out.save()
+            instance.material_out = material_out
+            instance.save()
+            return
+        material_out = Material.objects.get_queryset(all=True).filter(name=material.name, model=material.model, process=process).first()
+        if material_out:
+            material_out.is_deleted = False
+            material_out.save()
+            instance.material_out = material_out
+            instance.save()
+            return
+        material_out = Material.objects.create(**{'parent': instance.material, 'process': instance.process,
+                                                                                          'is_hidden': True, 'name': material.name,
+                                                                                          'number': material.number,
+                                                                                          'specification': material.specification,
+                                                                                          'model': material.model,
                                                                                           'type': Material.MA_TYPE_HALFGOOD,
                                                                                           'create_by': self.request.user,
                                                                                           'update_by': self.request.user,
                                                                                           })
-        if material_out.is_deleted:
-            material_out.is_deleted = False
-            material_out.save()
         instance.material_out = material_out
         instance.save()
+        return
 
     def create(self, validated_data):
         process = validated_data['process']