Introduction: The Aluminum Dilemma Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. When it comes to Aluminum Alloy CNC Machining, two grades dominate the conversation: 6061-T6 and 7075-T6. Both are widely used in…
Introduction: The No‑Man’s Land of Low‑Volume Production Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most common questions I get is: “I need 20–100 custom parts. What’s the best manufacturing…
Introduction: The Spectrum from Rock‑Solid to Rubber‑Like Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the most common questions I get about Flexible Resins 3D Printing is: “How flexible is it?…
Introduction: The Fundamental Choice Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. One of the first decisions in any machining project is whether to use CNC turning or CNC milling. Both are subtractive…
Introduction: Every Dollar Saved Is Profit Earned Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve helped hundreds of clients reduce the cost of Cost-Saving Custom Parts — sometimes…
Introduction: The Hidden Cost of Weld Distortion Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve welded thousands of Custom Sheet Metal Assemblies — from small brackets to large enclosures.…
Introduction: The Hidden Force That Distorts Your Prints Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve printed thousands of 3D Printed Parts using FDM, SLA, and SLS — and I’ve seen warping…
Introduction: The Foundation of Rotomolded Products Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and built hundreds of Rotational Molding Molds — ranging from large water tanks…
Introduction: The Titanium Paradox Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Titanium is the dream material for aerospace — strong, lightweight, corrosion‑resistant, and heat‑tolerant. But it’s also a nightmare to machine. Titanium’s…