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!
Get an Instant Quote
All uploads files are safe and confidential
VMT 
2026 02 05 As an alloy-low carbon steel, 4130 steel distinguishes itself from other common low-carbon steels because of the alloying elements’ addition of chromium and molybdenum. These alloying elements enhance its strength, corrosion resistance, wear resistance, and scratch resistance; Chromium element simultaneously improves the hardenability of 4130 steel, making it far more responsive to heat treatment processes than other carbon steel families. This article explores this versatile steel—good for its excellent machinability, superior weldability, and high strength-to-weight ratio—which has become a well-suited choice in aerospace, automotive, and precision component manufacturing. Read on to learn more about AISI 4130 alloy steel.
66
Read more
VMT 2026 02 04 Known for its signature "hard case and tough core," 8620 alloy steel inherently possesses exceptional toughness, impact resistance, and structural strength. Due to its low carbon content (approximately 0.20%), 8620 steel exhibits relatively low hardness in its raw, untreated state. However, once subjected to the heat treatment of carburizing (Case Hardening), it develops a high-hardness, wear-resistant carbide surface layer. This process compensates for its initial softness, providing good resistance to wear and galling, making it an ideal candidate for high-stress components like gears, cams, and pins. This article explores AISI 8620 steel—a low-carbon alloy steel favored for CNC machined parts due to its excellent balance of machinability, weldability, and impact resistance. Read on to learn AISI 8620 alloy steel more.
66
Read more
VMT 2026 02 03 As the name suggests, 1045 carbon steel is a specific grade of carbon steel. With a carbon content of approximately 0.45%, 1045 carbon steel is classified as a medium-carbon steel. AISI 1045 steel achieves the perfect balance between strength, affordability, and machinability, thus standing out as one of the most versatile medium-carbon steels used across various industries—from automotive components to heavy-duty machinery. Understanding 1045 steel material properties, uses, composition, pros, and cons is worthwhile for your designing and manufacturing reference. Read on to find more about the material 1045 steel.
66
Read more
VMT 2026 02 02 Bronze—metallic brown color—you can often see it from celebrity statues in many museum； Silicon—the most abundant elements in nature composed of the earth under our feet. But what about silicon bronze? This material is what we will discuss—it isn’t bronze with silicon, but at least 94% copper with 1-4% silicon and other trace elements (bronze is 89-92% copper with 5.5-7.0% Tin). Thus, the color of silicon bronze is mainly similar to copper— a reddish-brown color. This article will introduce this widely used high strength, corrosion-resistant material —silicon bronze—from its types and common grades, properties and manufacturability and pros and cons, giving you a worthwhile engineering insight of this material.
66
Read more
VMT 2026 02 01 If you are looking for a surface finish for "blacked-out" components —not just about aesthetics, but also about performance, you'd have to understand the black electroless nickel (EN) plating. For industries like aerospace, medical devices, and defense, this black finish plays an important role on dimensional precision, corrosion resistance, and electrical conductivity of CNC machined parts. In this guide, you can gain a clear understanding of the black electroless nickel plating process, its key benefits and cost, black electroless nickel vs. traditional black nickel plating, and other alternative “black” surface finishes.
66
Read more
VMT 2026 01 31 Have you been looking for an alloy with a good balance of strength, hardness, and durability, combined with excellent casting performance and high thermal stability? A380 aluminum alloy is exactly such an aluminum die-casting alloy widely used in automotive parts (brackets, engine housings), electronic housings, and tools. Its excellent fluidity and pressure tightness provide it with superior casting properties; and its universal in die-casting parts makes the aluminum a380 material cost affordable. This article will focus on a380 aluminum material properties, applications, as well as its manufacturability and comparison with non-castable wrought aluminum alloys 6061 and 7075 (wrought vs. casting ).
66
Read more
VMT 2026 01 30 For aluminum parts manufacturing through CNC machining and industrial extrusion, 6060 aluminum alloy stands out as the good choice when aesthetics, complex geometry, and superior surface finish are non-negotiable. As a heat-treatable 6xxx series (Al-Mg-Si
66
Read more
VMT 2026 01 29 You may have heard of the most versatile aluminum alloy 6061-T6, manufactured structural parts from automotive parts, industrial equipment to different kinds of hardware. It surely has high strength, and an affordable price due to its universal supply. However, there must be some other uses that it cannot meet really high strength. This is what this article will discuss— 7075-T6 aluminum —also known as "aircraft grade aluminum," stands as one of the highest strong alloy. It offers a strength-to-weight ratio that rivals many steels, making it a considered option for aerospace, defense, and high-stress industrial applications. But what’s about its characteristics and limitation? Is there any better alternative material for 7075-T6? What about its machining? This guide explores everything you need to know about material 7075 T6 aluminum.
66
Read more
+86 15099911516
