15 years one-stop China custom CNC machining parts factory
The VMT blog is dedicated to sharing our hard-earned knowledge in prototype manufacturing. We hope these articles will help you optimize your product designs and gain deeper insight into the world of rapid prototyping. Enjoy the read!
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2026 04 13 This blog will take you through brass annealing process, equipment, advantages, and most importantly, the annealed brass CNC machining—how gummy nature of annealed brass affects CNC machining, and how we solve this challenges for our clients when ask for perfect mirror-like precision brass parts in the end.
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VMT 2026 04 11 In this article, you will learn about the properties, popular grades, and applications of maraging steel. At the end, we will also share how we help our clients by accurately calculating shrinkage compensation for age hardening and employing efficient machining techniques to ensure that the delivered parts achieve both ultra-high strength and precision.
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VMT 2026 04 10 Whether you are sourcing well-performed steel parts that balances the strength and toughness and has high/low temperature resistance (-50 to 450 ℃）or looking for how this steel applicated for the ultimate CNC machining, this guide explores why maraging 300 alloy steel remains your option.
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VMT 2026 04 09 In this guide, we’ll compare 440C vs. 420J2 across four critical dimensions to help you determine which grade fits your project’s technical and budgetary requirements. Additionally, we will provide expert machining experience shares at the end.
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VMT 2026 04 08 In this guide, we will delve into the chemical composition, key properties, and industrial applications of 420J2. Furthermore, we will reveal our proprietary machining protocols at the end—specifically how we manage dimensional distortion during heat treatment and prevent surface micro-cracks to achieve a Ra 0.4 surface finish—bringing your most demanding designs to life.
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VMT 2026 04 07 Compare 431 stainless steel with 416, 420, 304, and 316 in terms of strength, corrosion resistance, and machinability. Learn how to choose the right stainless steel for CNC machining and high-performance engineering applications.
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VMT 2026 04 06 Quickly understand 416 stainless steel for CNC machined parts. Learn about its key properties, excellent machinability, and typical applications in automotive, electronics, drones, bicycles, motorcycles, robotics & automation, and marine industries.
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VMT 2026 04 05 When it comes to high-speed manufacturing and precision engineering, 416 stainless steel stands out as a "free-cutting steel" among martensitic stainless steels. Often referred to as a "free-machining" grade, AISI 416 is specifically e
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