Custom Online CNC Machining Services

Aluminum 6061

Aluminum 5052

Aluminum 2024

Aluminum 6063

Aluminum 7050

Aluminum 7075

Aluminum MIC-6

Learn more about aluminum for CNC machining.

Copper 101

Copper C110

Learn more about copper for CNC machining.

Copper C932

Learn more about bronze for CNC machining.

Copper 260

Copper 360

Learn more about brass for CNC machining.

Nitronic 60 (218 SS)

Stainless Steel 15-5

Stainless Steel 17-4

Stainless Steel 18-8

Stainless Steel 303

Stainless Steel 316/316L

Stainless Steel 416

Stainless Steel 410

Stainless Steel 420

Stainless Steel 440C

Learn more about stainless steel for CNC machining.

Steel 1018

Steel 1215

Steel 4130

Steel 4140

Steel 4140PH

Steel 4340

A2 Tool Steel

O1 Tool Steel

Learn more about steel for CNC machining.

Titanium (Grade 2)

Titanium (Grade 5)

Learn more about titanium for CNC machining.

Zinc Alloy

Learn more about zinc for CNC machining.

We can source additional alloys and tempers from within our network of 10,000 custom machine shops. If you do not see the material stock you are looking for, please choose "Custom" under the material drop-down in the Xometry Instant Quoting Engine℠. You can then submit your quote for manual review and our expert manufacturing team will reach out.

The fastest lead time surface finish option. Machined part surfaces have visible tool marks, with possible sharp edges and burrs that can be removed upon request. Surface finish is comparable to Ra 125μin.

Gives parts a smooth, uniform matte surface texture, improving visual and tactile experience.

Batch processing method，Removes burrs and sharp edges through vibratory media tumbling，While eliminating external surface machining marks。Size exceeds8Inch parts require manual inspection.

IIType Anodizing（MIL-A-8625，IIType）Forms corrosion-resistant surface，Available in clear、Black、Red、Gold and other colors，Suitable forAluminumMaterial。IIIType Anodizing（MIL-A-8625/MIL-PRF-8625，IIIType，1/2Grade“Hard Coating”）Thicker coating，Combines corrosion and wear resistance。

MeetsAMS-2488 Type 2Standard-compliantTitaniumSurface finishing processes，Also known asTiodize，Improves part fatigue strength and wear resistance，Widely used inAerospaceAndMedicalMedical device field。Untreated surfaces without pigment have lower gloss.

PTFE is embedded in the hard anodizing process（PTFE），Forms self-lubricating dry contact surface，CombinesIIIType hard anodizing protective performance。Suitable forAluminumAlloy orTitaniumAlloy，Extends product service life。MeetsAMS-2482 1Type withPTFEHard anodizing standard.

Provides corrosion resistance and good conductivity，Can be used as paint primer，Surface appears yellow/Gold，Minimal thickness increase（approx.0.00001-0.00004inch）。MeetsMIL-DTL-5541 I/IIType standard.

Improves200Series、300SeriesStainless SteelAnd precipitation hardening corrosion-resistantSteelCorrosion resistance，Negligible thickness increase（approx.0.000001inch）。MeetsASTM A967、AMS-QQ-P-35、MIL-STD-171、ASTM A380OrAMS2700Standard

Powder coating sprayed then baked to cure，Forms a harder finish than traditional paint、Wear-resistant、Durable corrosion-resistant coating。Offers multiple color options，Meets different aesthetic needs

An electrochemical process cleans steel parts to reduce corrosion and improve appearance, by making the metal brighter. Removes about 0.0001”-0.0025” of the metal. Conforms to ASTM B912-02.

Provides uniform plating，Protects irregular surfaces from corrosion、Oxidation and wear，Finished surface is bright，Minimum plating thickness0.0001inch。MeetsMIL-C-26074Standard

Silver coating offers good solderability and conductivity，But prone to tarnishing，Thickness approx.0.00002-0.0003inch。MeetsAMS QQ-S-365DStandard.

Gold plating provides excellent corrosion resistance、Oxidation resistance and solderability，Thickness approx.0.00002-0.00005inch。MeetsMIL-G-45204AndASTM B488Standard（Grade00、0Or1)

Uniform zinc coating protects irregular surfaces from corrosion、Oxidation and wear，Thickness meetsASTM B633-15Standard。

CNC machining uses a subtractive manufacturing process, shaping raw material into final form by removing material. Common operations include drilling, boring, slotting, and machining metal blanks into parts of various tapers, diameters, and shapes.
Subtractive manufacturing throughremoving materialObtains shape，And additive manufacturing（Layer-by-layer additionMaterials）And injection molding（MoltenMaterialsInjected into mold）Forms a stark contrast。
CNCMachining suitable for variousMaterials，Including metal、Plastics、Wood、Glass、FoamMaterialsAnd compositeMaterials。This versatility Making it a popular choice across industries，Supports designers and engineers efficiently、Precisely manufactures products.

In traditional machining, skilled technicians manually operate machines based on engineering drawings to perform metal cutting, drilling, milling, and other operations. They use various cutting tools and measuring instruments to ensure dimensional accuracy.
CNCMachining achieves same functionality，But uses computer numerical control instead of manual operation。Code developed by programmers drives automated equipment operation，First cut and the500Cut precision is nearly identical。CNCMachining is widely used in digital manufacturing and smallBatch Production，And adjustable based on requirements，Adapt to differentMaterials。
This technology uses Cartesian coordinates and powerful computing，Achieves higher precision，Has gradually replaced traditional machining methods in manufacturing。Engineers specify coordinates in digital drawings，CNC system controls cutting accordingly、Drilling and other operations，Ensures precise and consistent machining.

This type of machining is much more precise and has superseded traditional machining (though not entirely) in manufacturing, fabrication, and industrial production. It uses mathematical coordinates and computing power to achieve the same end with the greatest accuracy. Specifically, computer numerical control uses Cartesian coordinates. These are spatial coordinates — in several dimensions — using coordinates and axes. The automation of cutting tool machines controls its cutting, boring, drilling, or other operation using the numerical control of a computer that reads the coordinates. These coordinates were designated by engineers in the product’s digital drawing and design.

CNC machining is widely used across industries. It is common in aerospace, automotive, consumer electronics, robotics, agriculture, and other fields that frequently use metal parts. It is also widely used in medical devices, household goods, energy, oil and gas, and other consumer applications. It is one of the most common manufacturing processes in the world.CNC machining technology has wide applications, commonly found in metal-part-intensive sectors like aerospace, automotive, consumer electronics, robotics, and agriculture. It is also widely used in medical devices, home goods, energy, oil & gas, and other consumer goods industries, making it one of the most common manufacturing processes worldwide.

During World War II, the United States rapidly produced ships, aircraft, and vehicles for military needs. After the war, production demand remained strong with housing construction, infrastructure expansion, and transportation development. Engineers and designers urgently needed efficient tools to meet industrial product demands.
John·T·Parsons while working on helicopter rotor blade production，First advocatedCNC MachiningConcept。He and Wright-Colleagues at Patterson Air Force Base used interpolation curve methods，Achieves complex tapers required for rotor blades。As part complexity increases，Parsons Corporation began adopting computer methods andCNC Machining。
Building on this，MIT Servomechanisms Laboratory developed practical numerical control machines，Uses servomechanisms and Cartesian coordinates to control machine motion，Achieves automated precision machining。This technology evolved throughout the 20th century，Continues to develop today.