14 years one-stop China custom CNC machining parts factory
Blogs
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 
2025 07 08 Composite materials are engineered by combining two or more distinct materials — typically a matrix and a reinforcement — to create a material with superior mechanical, thermal, or chemical properties. Composites are used across industries for lightweight, high-strength, and corrosion-resistant parts.
66
Read more
VMT 2025 07 07 MIG/MAG welding are two arc welding methods widely used in CNC machining parts manufacturing. MIG uses inert gas for non-reactive shielding, ideal for non-ferrous metals, while MAG uses active gas suitable for ferrous metals. The key difference is the shielding gas type. Both offer high productivity and adaptability in welding CNC machining parts.
66
Read more
VMT 2025 07 04 Fit H7 is a standard tolerance grade for holes commonly used in CNC machining parts and assemblies. It specifies the permissible size variation with a zero lower deviation and a positive upper deviation depending on the nominal size. Understanding H7 tolerance ensures precise component fits, improving product quality and performance in CNC machining factories.
66
Read more
VMT 2025 07 03 18/8 stainless steel is an austenitic alloy composed of approximately 18% chromium and 8% nickel. It offers excellent corrosion resistance, strength, and workability, making it ideal for food-grade, medical, and industrial applications. Often equivalent to 304 stainless steel, it is widely used in CNC machining services to produce hygienic, durable, and visually appealing stainless steel CNC machining parts.
66
Read more
VMT 2025 07 02 To choose between 3Cr13 stainless steel and 316 stainless steel, it’s critical to compare corrosion resistance, hardness, machinability, and cost. For cost-effective CNC machining parts, 3Cr13 offers balanced performance; for harsh environments and food-grade demands, 316 stainless steel CNC machining parts deliver superior durability.
66
Read more
VMT 2025 07 01 Composite CNC machining is the process of using computer numerical control to shape and fabricate parts made from composite materials, such as carbon fiber, fiberglass, and aramid-reinforced polymers. It requires specialized tools and techniques to prevent delamination, maintain precision, and achieve high-performance results across industries like aerospace, automotive, and medical.
66
Read more
VMT 2025 06 30 Lead has a standard density of approximately 11.34 g/cm³, equivalent to 11,340 kg/m³ or 0.410 lb/in³. This makes it one of the densest commonly used metals in CNC machining parts, especially where weight, shielding, and vibration control are required.
66
Read more
VMT 2025 06 28 Fiberglass is a composite material made from fine glass fibers and resin, offering excellent strength-to-weight ratio, corrosion resistance, and thermal insulation. It is widely used in aerospace, automotive, marine, construction, and industrial applications, and can be precisely manufactured using fiberglass CNC machining services for high-performance parts.
66
Read more
+86 15099911516
