Introduction: Why Enclosure Design Matters Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve helped clients design and fabricate thousands of sheet metal enclosures — for electronics, medical devices, industrial…
Introduction: Why Bend Radius Matters More Than You Think Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every week, I review sheet metal designs where the inside bend radius is too small —…
Introduction: Why Most Sheet Metal Parts Cost More Than They Should Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past 12 years, I’ve reviewed thousands of Sheet Metal Part designs —…
Introduction: Choosing the Right Material for Your Sheet Metal Project Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every week, clients ask me: “Which material should I use for my sheet metal part…
Introduction: Three Cutting Technologies, One Factory’s Perspective Hi, I’m Barry Zeng from Shanghai Yunyan Prototype & Mould Manufacture Factory — a real sheet metal fabrication factory based in China. Every day, our workshop runs fiber lasers, plasma tables, and waterjet…
Introduction: Why Surface Treatment Matters Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve seen beautifully fabricated sheet metal parts rust within weeks because the wrong surface treatment was chosen — or none…
Introduction: Why Tolerances Make or Break Your Sheet Metal Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve seen countless Sheet Metal Custom Fabrication projects delayed or over budget…
Introduction: Why Most Quote Requests Get Delayed — And How to Avoid That Hi, I’m Barry Zeng from Shanghai Yunyan Prototype & Mould Manufacture Factory, a manufacturing factory specializing in CNC machining, 3D printing (SLA/SLS/FDM), and sheet metal fabrication. Every…
Introduction: The Backbone of Industrial Manufacturing Sheet Metal Fabrication is a core manufacturing discipline that transforms flat metal sheets into precise, functional components through cutting, bending, welding, and stamping. From automotive chassis and aircraft skins to medical device enclosures and…
Introduction: One Drawing, Three Quotes, a Three‑fold Difference Last month, Mr. Zhang, a purchasing manager at a smart device company, sent us a drawing of a sheet metal enclosure – dimensions 300×200×50mm, material SECC, thickness 1.2mm. He requested quotes from…