Improved method for manufacturing a shell mold for production by lost-wax casting of bladed elements of an aircraft turbine engine

The invention relates to a method for manufacturing a shell mold for the production by lost-wax casting of bladed elements (1) of an aircraft turbine engine, including the following steps: a) creating an assembly (200) including a wax pattern (100) as well as a device for forming a cup for pouring metal (32b) and having an end surface (40a); b) depositing a hot wax coating layer on at least one portion of the end surface (40a); c) forming the shell mold around the assembly (200). In addition, the method includes, between steps b) and c), the implementation of a step of structuring the coating layer intended for reinforcing the adhesion between said layer (46) and the shell mold, and including the production of recesses (62) and projections (60) on the still-malleable coating layer. 本发明涉及用于制造壳模的方法，壳模用于通过失蜡铸造来生产飞行器涡轮发动机的具有叶片的元件(1)，包括以下步骤：a)创建组件(200)，该组件包括蜡型模(100)以及形成用于浇注金属的杯(32b)并具有端部表面(40a)的装置；b)将热蜡涂覆层沉积在端部表面(40a)的至少部分上；c)围绕组件(200)形成壳模。此外，该方法在步骤b)和步骤c)之间包括实施构建涂覆层的步骤，该步骤用于加强所述层(46)与壳模之间的粘附，并且包括在仍可延展的涂覆层上产生凹部(62