Why Inclined Ejection Was Used for a Large Internal Undercut in an Automotive Mold скачать в хорошем качестве

Why Inclined Ejection Was Used for a Large Internal Undercut in an Automotive Mold

Motion-based mold design is not about animation — it is about validating engineering decisions before steel cutting. This video explains why an inclined ejection system was selected to release a large internal undercut in an automotive injection mold. The part is a large automotive component with strict requirements for surface quality and dimensional accuracy. The mold is built as a 1×1 configuration using a Synventive valve-gate hot runner system with DME standard components. Inside the part, a large circular internal undercut is present. A conventional slide solution would require extremely complex side actions and difficult machining, increasing the risk of tolerance stack-up and assembly alignment problems. Instead, the part was designed to eject along the direction of the undercut using an inclined ejection mechanism. Although the ejection system becomes more complex, the overall mold structure becomes simpler and more stable. During mold opening: • Two front slides are first driven by hydraulic cylinders • A and B plates separate while angled surfaces drive multiple sliders • Additional slides complete the remaining core-pull actions • The ejector system finally releases the part for robotic removal Engineering note: Aligning the ejection direction with the undercut geometry can significantly simplify the forming structure and improve production stability. Production stability is engineered — not assumed. — Moldevo –––––––––––––––––––––– External Injection Mold Design · DFM · Moldflow Analysis for complex tooling projects (EU / US / International) Technical inquiries: moldevo.design@gmail.com #InjectionMolding #MoldDesign #ManufacturingEngineering