MoldMaking Technology

SEP 2017

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Software 14 MoldMaking Technology —— SEPTEMBER 2017 Using toolpath smoothing, hybrid finishing techniques and the latest tools can help mold builders achieve the best possible finishes. gram comes after the CAD file is imported from a dedicated CAD system into the CAM environment. In this case, it is important to ensure that the CAM software can cleanly import CAD files, regardless of the source. Oftentimes, addi- tional CAD work is required to prepare the CAD file for effi- cient CNC programming. Rather than continuously reverting to the model to make iterative changes required for best CAM practices, it can be far less time-consuming to use resi- dent CAD for CAM capabilities within the CAM software itself. This ensures that the production process moves continuously forward. For example, sophisticated repair algorithms make it possible to fix sketchy surfaces, particularly where the initial data came from a scanned physical model. Features like push/pull or direct mod- eling enable changes such as changing fillet sizes, moving or editing features or temporarily filling in holes so they can be machined properly, even if the model does not have an associated his- tory tree. Another attractive alternative for getting mold components on the CNC machine faster is to move the mold design process forward into an inte- grated CAD/CAM environment with moldmaking-specific functionalities. Examples include parting line separa- tion, cavity splitting, templates for mold plates and electrode creation. Mold builders can be more competi- tive when they implement a combination of digital tools that make the process of moving from design to CNC manufac- turing as seamless as possible so that the model does not become a roadblock on the path to customer satisfaction. The better alternative is to employ toolpaths that rely on material- aware algorithms to maintain a constant, ideal chip load as defined by the cutting tool manufacturer throughout the entire roughing operation.

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