Introduction: The Steel Behind the Spark Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. If you’ve ever had to order replacement parts for a product — or if you’re planning to produce a…
Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. If you’ve ever looked at a plastic part — a gear, a housing, a connector, or even a toy — and thought, “How do they…
Introduction: The Little Plastic Heroes Keeping Your World Running Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. You know that weird plastic gear inside your coffee maker? Or the little clip that holds…
Introduction: The Day I Learned That CNC Doesn’t Forgive Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve been building injection molds for 12 years — long enough to know that a CNC…
Introduction: The Right Material Makes All the Difference Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. For over 17 years, I have helped clients select the optimal materials for their Injection Molding Spare…
Introduction: The Overlooked “Invisible Champion” In injection molding, cooling time accounts for 70-80% of the entire cycle time. A well‑designed cooling system can reduce the cycle time of an injection mold by 20-40%, significantly improve part dimensional accuracy, reduce warpage,…
Introduction: The Lesson of “Three Mold Trials” Last year, an automotive parts company commissioned us to develop a set of injection mold manufacturing for instrument panel trim strips. Eager to start trial production, the customer skipped mold flow analysis and…
Introduction: A Real Case of Cost Overrun Last year, an automotive parts client approached us to develop injection molds for a new vehicle model. Project budget: 2 million RMB, lead time: 12 weeks. Everything went according to plan — until…
Explore best practices for machining multi-curved, complex parts using CNC — from precise 3D modeling and CAM tool-path planning to multiaxis machining, cutting-tool selection, and quality control. Learn how to ensure accurate surface contours and high finish quality for complex…