Premixed powder 3D printing separation detection method

The invention discloses a premixed powder 3D printing separation detection method. The method is characterized by adopting an acrylic plate with a release film during powder collection, and cooperating with a double-sided glue and a colorless and transparent epoxy resin glue to solve a problem that a surface sample wrinkle interferes a detection result during sampling; and sampling a mixed powderlayer and carrying out elemental energy spectrum surface scanning, calculating an actual ratio of mixed powder according to an energy spectrum color map obtained through scanning, and determining whether the powder is separated based on that. A technical problem that premixed powder 3D printing separation with a same color, similar loose-fitted density and a similar particle size can not be detected can be effectively solved, a material composition ratio is ensured, operation is simple and the method is easy to implement. 本发明公开了一种预混合粉末3D打印分离检测方法，在粉末收集时采用自带离型膜的亚克力板，配合以双面胶与无色、透明环氧树脂胶，解决了取样时因表面样品褶皱干扰检测结果的难题，通过对混合粉末层进行采样并