Introduction: The Triple Constraint of Custom Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Every day, I work with clients who need small quantities of custom parts — anywhere from 1 to…
Introduction: Why Dimensions Change — and How to Prevent It Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve seen CNC Machined Parts that measured perfectly on the machine…
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: The Semiconductor Industry’s Demand for High‑Purity Titanium Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve machined hundreds of low‑volume titanium components for semiconductor equipment — chamber…
Introduction: Defects Cost Time and Money — Here’s How to Fix Them Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve troubleshot thousands of defective Injection Molded Parts —…
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: 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: The Evolution of Rotational Mold Materials 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 Molds — from large water tanks to…
Introduction: The Robotics Weight Problem — Solved by Carbon Fiber Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve helped robotics companies reduce arm weight, increase payload, and improve…