Hey, I’m Barry Zeng. I’ve been in manufacturing for 12 years at Shanghai Yunyan Prototype & Mould Manufacture Factory, and if there’s one industry that has taught me the most about precision, it’s aerospace. I still remember the first aerospace…
Hey, I’m Barry Zeng. I’ve been in manufacturing for 12 years at Shanghai Yunyan Prototype & Mould Manufacture Factory, and if there’s one question I’ve never stopped thinking about, it’s this: what is precision actually worth? I’ve seen clients pay…
Hey, I’m Barry Zeng. I’ve been in manufacturing for 12 years at Shanghai Yunyan Prototype & Mould Manufacture Factory. If there’s one category of components that quietly holds modern industry together, it’s CNC precision turned parts. You don’t see them…
Hey, I’m Barry Zeng. I’ve been in manufacturing for 12 years at Shanghai Yunyan Prototype & Mould Manufacture Factory, and I still remember the first time someone asked me this question: “Barry, which is better — manual machining or CNC…
Introduction: CNC Turned vs Milled Parts — The Cylindrical Advantage Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every week, I see designers specify CNC milling for components that could be machined faster,…
Introduction: The Critical Role of Threading Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Internal threads are everywhere — from fastener holes in engine blocks to fluid ports in hydraulic manifolds. Choosing the…
Introduction: The Precision Demands of Medical Micro Components Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve programmed and run Swiss‑type lathes for thousands of micro medical components —…
Introduction: The Language of Precision In the world of precision manufacturing, tolerances are the language that bridges design intent and physical reality. When you outsource a part to a CNC milling service, the tolerance you specify tells the machinist exactly…
Introduction: Two Pillars of Precision Manufacturing When it comes to precision machining, two processes dominate the workshop floor: CNC milling and CNC turning. Both are subtractive manufacturing methods that use computer‑controlled tools to remove material from a workpiece. However, they…
Introduction: The Cost of “Choosing the Wrong Partner” Last year, a purchasing manager from a medical device company contacted us, his voice full of frustration: “The CNC machined parts manufacturer we used before had low prices and fast delivery, but…