What are the steps in post-processing of 3D printers?
Publish Time: 2024-07-19
Post-processing of 3D printers is an important part of ensuring the quality of printed products. It covers multiple steps from removing the printed parts to the final product. Here is a detailed overview of these steps:
Removal and support structure removal: First, the printed parts need to be removed from the printer. For many 3D printing technologies, such as SLA (photocuring resin modeling) and SLS (selective laser sintering), support structures may be used during the printing process to ensure the stability of complex shapes. Therefore, the first step after removing the parts is to carefully remove these support structures, usually using tools such as scissors, tweezers or sandpaper.
Cleaning and drying: Since printing technologies such as SLA involve liquid resin or other materials, uncured materials or impurities may remain on the surface of the printed parts. Therefore, cleaning is a necessary step, usually using alcohol or other suitable solvents for thorough cleaning. After cleaning, the printed parts need to be fully dried to avoid problems in subsequent processing.
Curing treatment: For some printing materials, such as photosensitive resins, additional curing treatment may be required after printing to enhance their physical properties and stability. This is usually achieved by irradiation with ultraviolet light or heating.
Sanding and polishing: Sanding and polishing are important steps to improve the surface finish of printed parts. This not only removes layer lines or defects left during the printing process, but also makes the printed parts more beautiful. When sanding, it is usually carried out step by step from coarse to fine sandpaper until the desired surface quality is achieved.
Coloring and painting: If necessary, the printed parts can be colored or painted. This can be achieved by spraying, brushing or dipping. Before painting, the printed parts may need to be degreased to improve the adhesion of the paint. After painting, dry or air dry as needed.
Assembly and testing: If the printed part consists of multiple parts, it needs to be assembled. When assembling, it is necessary to pay attention to the matching accuracy and fastening force between the parts. After assembly, functional testing is performed to ensure that the printed parts meet the design requirements.
In summary, the post-processing of 3D printers is a complex and meticulous process involving multiple steps and the use of tools. Through careful post-processing, the quality and aesthetics of the printed parts can be significantly improved to better meet the application requirements.
