Modifying an Injection Mold with 3D Scanning

 

Modification Process

A local injection mold-making company was faced with the challenge of modifying an existing mold for a vacuum cover. Because it was manufactured by another company, they did not possess the CAD data for the mold. So, the injection mold company reached out to us, Applications 3D, to be the solution to their problem. They had asked us to take a 3D scan of the current mold and reverse engineer it. In addition, this reverse engineer model must be modified to meet new needs as well. So, applications 3D was tasked with scanning and creating the new mold based on the customer’s needs with the information provided. With our portable 3D scanning equipment, the injection mold was scanned at the customer site in just a few hours. Now that the 3D scan data was acquired from the old injection mold we could start to create the new one.

Post 3D Scanning Work

So with the 3D scanning of the injection mold now complete, the next steps in the process can be taken. The data acquired must be analyzed to take the proper steps before the modification process has begun. Using features on the injection mold such as guide pins and holes, the data could then be moved into a coordinate system. Undoubtedly this is a necessary component for all reverse engineering projects as it ensures the accuracy of the original part. During the reverse engineering process shared components between the current injection mold and the modified mold were created first. Once that portion has been created the new features can be added based on the customer’s needs.

With the modification of the 3D mold created, the finished IGES surface data, also called math data, was sent over to the customer for use on the mold. They then took this data to program their CNC machine and machined in the new features. From there they then polished and textured the mold to how it was needed and the modified injection mold was then ready to be used in production. Therefore, modification/reverse engineering of injection molds can be accomplished utilizing 3D scanning and can ensure an accurately modified injection mold to meet new needs.