Metal cnc machining services

CNC Metal Machining Services for Custom Metal Parts

SzCrealink provides reliable CNC metal machining services for customers who need precision, consistency, and predictable delivery. From early-stage prototypes to stable production parts, we machine metal components exactly to your drawings – with clear communication at every step.

Precision CNC Metal Machining Services

Our CNC metal machining services are designed for parts that require tight tolerances, clean finishes, and repeatable quality. We handle both simple and complex geometries using a controlled, engineering-driven process.

Our capabilities include:

3-axis, 4-axis, and 5-axis CNC metal machining

CNC milling for complex metal parts

CNC turning for shafts, bushings, and round components

EDM wire cutting for hardened materials and internal features

Precision surface grinding for critical flat surfaces

We support the full production lifecycle – from CNC metal prototype machining to low-volume and high-volume CNC metal machining production.

CNC Machining Capabilities Built Around Your Project

Every CNC metal machining project at SzCrealink follows a structured workflow. We focus on execution, not overpromising. What you can expect:

Custom CNC metal machining based strictly on your drawings and requirements

Stable tolerances across prototypes and batch production

Modern CNC equipment for accuracy and efficiency

Experienced machinists supported by in-process and final inspections

By keeping machining, surface treatment, and heat treatment under coordinated control, we reduce unnecessary costs and shorten lead times – without sacrificing quality.

Advanced CNC Equipment Matrix

The Core Engine of SzCrealink Precision Manufacturing. At SzCrealink, we leverage advanced CNC equipment as our foundation, integrating process expertise and control to deliver high-precision, high-efficiency metal component manufacturing services. Our core machining capabilities include:

CNC Metal Machining Processes

CNC Milling Services

CNC milling is used for prismatic metal parts, housings, plates, and complex surfaces. Our milling capabilities support aluminum, steel, stainless steel, titanium, and other alloys.

CNC Turning Services

CNC turning is ideal for rotational parts such as shafts, pins, bushings, and threaded components. We ensure excellent roundness, concentricity, and surface quality.

Multi‑Axis CNC Machining

For complex geometries, 5-axis CNC metal machining allows multiple features to be completed in a single setup – improving accuracy and reducing cumulative errors.

Advantages, Limitations & Cost

Process	Advantages	Limitations	Cost Level
3/4-Axis CNC Milling	Stable and mature process,Cost-effective for batch production,Consistent accuracy up to ±0.01 mm	Complex geometries require multiple setups,Positioning errors may accumulate	$ Low to Medium
5-Axis Simultaneous CNC Milling	Completes complex parts in a single setup,Excellent surface finish and dimensional accuracy,Eliminates errors from repeated repositioning	Higher machine and programming cost,Not economical for simple or high-volume parts	$$$ High
CNC Turning (Precision Lathe)	Superior control of roundness and concentricity,High efficiency and low per-part cost,Ideal for shafts, bushings, and round components	Limited to rotational geometries,Secondary operations needed for non-round features	$ Low
Turning-Milling Composite Machining	Multiple operations completed in one setup,Shorter lead time and improved accuracy,More cost-effective than full 5-axis machining	Not suitable for extremely complex freeform surfaces,Machine availability may be limited	$$ Medium to Medium-High
Electrical Discharge Machining (EDM)	Machines hardened materials without cutting force,Ideal for narrow slots, internal features, and micro details,Stress-free, high-precision results	Slow processing speed,High cost per part, not suitable for mass production	$$$High
Precision Surface Grinding	Achieves ultra-flat surfaces and tight tolerances,Essential for critical mating and reference surfaces,Improves assembly accuracy and stability	Limited to flat or simple geometries,Adds cost as a secondary finishing process	$$ Medium

Quick Selection Guide:

Simple parts, cost control → 3/4-Axis CNC Milling
Complex geometry, highest precision → 5-Axis CNC Milling
Rotational components → CNC Turning
Multi-feature parts, shorter lead time → Turning-Milling Composite
Hardened materials or internal features → EDM
Critical flat surfaces → Precision Grinding

Metal Materials We Machine

We machine a wide range of metals commonly used in industrial and high-performance applications:

◉Common Metals

Aluminum CNC machining (6061, 7075, 6082, and more)

Stainless steel CNC machining (304, 303, 316, 17-4PH)

Carbon steel and alloy steel machining

◉High-Value Metals

Titanium CNC machining

◉ Brass Metals CNC machining

◉ Copper Metals CNC machining

Our engineers help you select materials based on strength, corrosion resistance, weight, machinability, and cost – so your parts perform as intended.

When choosing a metal for CNC machining, you need to consider a few important factors. Start by thinking about whether the metal needs to handle high temperatures or resist bending and breaking under pressure. Also, check how resistant it is to corrosion. Consider how easy it is to work with, how much it costs, its weight, and the look you want for the final product. Each of these factors will help you pick the best metal for your needs.

◉Aluminum

Great machinability + Strong strength-to-weight ratio

◉Stainless Steel

Good machinability + High tensile strength + Corrosion-resistant

◉Steel

Good machinability + High tensile strength + Good ductility and weldability

◉Brass

Good machinability + Excellent electrical conductivity + Low friction + Attractive golden appearance

◉Copper

Good machinability + Excellent thermal and electrical conductivity

◉Titanium

Excellent strength-to-weight ratio + Corrosion-resistant

◉Magnesium

Lightweight + High strength-to-weight ratio + Good thermal conductivity + Biocompatible

◉ Molybdenum

High strength and durability + Excellent heat and corrosion resistance

Aluminum is one of the most affordable metals for CNC machining. Not only is it inexpensive, but it also has a great strength-to-weight ratio and high performance, making it perfect for lightweight parts.

Aluminum is also easy to machine, which helps keep production costs low and speeds up the process. There are different grades of aluminum used in CNC machining, each suited for different needs：

Aluminum AL6061-T6

AL6061-T6 is one of the most popular types of aluminum used in CNC machining. It’s a cost-effective choice that’s easy to work with and resistant to the elements, making it great for outdoor use. However, it doesn’t hold up well against saltwater or chemicals.

This aluminum grade is perfect for making parts for construction, aerospace, and transportation equipment, where strength and durability are important.

Aluminum AL7075-T6

AL7075-T6 is a strong, high-quality metal that’s great for CNC machining. It’s especially useful in industries like automotive and aerospace, where strength is crucial. AL7075-T6 is tough, flexible, and resists wear over time, making it perfect for creating parts that need to handle a lot of stress.

Aluminum 6082

The 6082 aluminum grade is often used for machining because it has the highest strength of all the 6000 series, even stronger than 6061. Its strength comes from a high amount of manganese, which helps shape its structure. The 6082 also has excellent resistance to corrosion, making it a great choice for industries like aerospace and defense.

More Aluminum and Aluminum Alloy Grades

Internationally, aluminum and aluminum alloy grades are often expressed using a four-digit number system, with each series representing a different type of alloying element combination:

1XXX: Pure aluminum series, containing more than 99% aluminum. Representatives such as 1060, 1100.

2XXX: Aluminum-copper alloy series. Represented by 2024, 2A02.

3XXX: Aluminum-manganese alloy series. Representatives such as 3003, 3A21.

4XXX: Aluminum-silicon alloy series. Representatives such as 4A01.

5XXX: Aluminum-magnesium alloy series. Representatives such as 5052, 5083.

6XXX: Aluminum-magnesium-silicon alloy series. Representatives such as 6061, 6063.

7XXX: Aluminum-zinc alloy series. Representatives such as 7075.

8XXX: Other alloy systems. Alloy system other than the above, representative of 8011

9XXX series

6061-T6 is called the “workhorse” of aluminum alloys because it’s versatile and gets the job done well in many industries. While it may not be the highest grade, it’s still very strong and affordable. With a hardness of 95HB in T6 form, it strikes a good balance of medium to high strength.
It’s known for its solid mechanical properties, easy welding, great corrosion resistance, and smooth anodizing finish. Because of these qualities, it’s a favorite in industries like hardware, mold making, aerospace, automotive, electronics, semiconductors, and home appliances. It’s a popular choice because it’s cost-effective and can handle a wide range of applications.

Stainless steel isn’t as easy to machine as aluminum, but it still has good machinability. It’s also affordable for CNC machining, making it a solid choice for producing components or parts.
There are several grades of stainless steel used in CNC machining, with some of the most common ones being:

SS304

SS304 is one of the most commonly used stainless steel grades for machining. It’s easy to shape and weld, making it versatile.
This steel is often used to make kitchen utensils and appliances. It’s also used to manufacture pipes and equipment for handling food.

SS303

SS303 stainless steel is known for its great corrosion resistance and durability. These qualities make it perfect for making parts like gears, shafts, bushings, nuts, bolts, and fittings for aircraft.
It contains 17% chromium, 8% nickel, and 0.15% sulfur. However, the sulfur content means SS303 can’t be hardened using heat treatment.

SS316

SS316 stainless steel is known for its outstanding corrosion resistance and strength. This is mainly due to its 2% to 3% molybdenum content, along with chromium and nickel.

The strong properties of SS316 make it ideal for specialized uses, such as in aerospace and medical implants.

200 and 300 series austenitic stainless steels

200 Series: Chromium-Nickel-Manganese Austenitic Stainless Steels
Characteristics:
– Main alloying elements: chromium, nickel, manganese.
– Lower cost: lower cost due to partial replacement of nickel with manganese.
– Slightly poorer corrosion resistance: Compared with the 300 series, the 200 series is slightly less corrosion resistant, especially in chloride environments.
– Mechanical Properties: Typically has good strength and ductility for some specific applications.
Typical grades:
– 201: Higher manganese content, better corrosion resistance, suitable for general industrial use.
– 202: Higher manganese content, lower cost, but slightly lower corrosion resistance.
– 205: Higher nitrogen content, better corrosion resistance and high temperature performance.

300 series: chromium-nickel austenitic stainless steel
Characteristics:
– Main alloying elements: chromium, nickel.
– Excellent corrosion resistance: especially very good corrosion resistance to atmosphere, water and a variety of chemical media.
– Good mechanical properties: high strength, toughness and ductility, suitable for a variety of machining processes.
– Non-magnetic or weakly magnetic: almost non-magnetic in the annealed state, may be slightly magnetic after cold working.
Common grades and their properties
– 301:
Characteristics: good ductility, easy to mold, strength can be significantly improved by cold working.
Application: Widely used in the manufacture of springs, bellows, cable sheaths and other products requiring high elasticity.
– 302:
Characteristics: corrosion resistance is comparable to 304, but due to the slightly higher carbon content, the strength is better.
Applications: suitable for applications requiring higher strength, such as fasteners, springs, etc.
– 302B:
Characteristics: Higher silicon content, excellent resistance to high-temperature oxidation.
Application: Commonly used for parts working in high temperature environments, such as stoves and exhaust systems.
– 303:
Characteristics: By adding a small amount of sulfur and phosphorus, it improves cutting and machining performance and reduces tool wear.
Applications: Widely used in the manufacture of screws, nuts, shafts and other parts requiring precision machining.
– 303Se:
Characteristics: Contains selenium (Se), which further improves cutting performance and is particularly suitable for automatic lathe machining.
Application: suitable for mass production of precision parts, such as screws, gears, etc. .
– 304 (i.e. 18/8 stainless steel):
Characteristics: one of the most commonly used stainless steel grades, with excellent corrosion resistance and good mechanical properties.
Applications: Widely used in food processing equipment, kitchen utensils, medical equipment, building decoration and other fields.
– 309:
Characteristics: Compared with 304, it has better high-temperature oxidation resistance and corrosion resistance, especially suitable for high-temperature environment.
Applications: commonly used in the manufacture of high-temperature stoves, burners, exhaust systems, etc.
Supplementary notes
– 304L and 316L: These grades are lower carbon versions of 304 and 316 with better weldability and intergranular corrosion resistance for applications requiring higher corrosion resistance and weld quality.
– 316 (Mo): Containing molybdenum (Mo), these grades offer better resistance to pitting and crevice corrosion, and are particularly suitable for marine environments and the chemical industry.
– 321 and 347: These grades are stabilized by the addition of titanium (Ti) or niobium (Nb) to stabilize the carbides and prevent intergranular corrosion during welding, and are suitable for high temperature and welded structures.

The 200 series and 300 series of austenitic stainless steel each have their own features and uses. The 200 series is cheaper and works well in situations where high corrosion resistance isn’t needed. On the other hand, the 300 series offers great corrosion resistance and strong mechanical properties, making it suitable for industries that require high durability and resistance to corrosion. When choosing the right stainless steel grade, it’s important to consider the specific needs of the application, processing requirements, and budget.

Copper is great for making electrical products because it conducts heat and electricity very well. While it can be expensive, copper is easy to machine, making it a popular choice for many applications.

Brass is an alloy made from copper and zinc, giving it great machinability and strength. It also has excellent thermal and electrical conductivity.

Brass resists saltwater corrosion and keeps its properties even in cold temperatures. It’s easy to work with and can be polished to a smooth, attractive finish.

However, brass has medium hardness and can be expensive, which can make machining costs higher. It’s often used for making electrical components, plumbing systems, automotive parts, musical instruments, and medical products.

Titanium is known for its great strength-to-weight ratio, as well as its resistance to heat and chemicals. Its high strength and biocompatibility make it perfect for medical devices. It’s also widely used in the aerospace and high-end automotive industries.

However, titanium is expensive to buy, which makes it costly to machine.

Magnesium is a lightweight metal with excellent thermal conductivity and good mechanical properties, making it easy to machine with CNC equipment. It’s about 35% lighter than aluminum, which makes it a great choice for the automotive and aerospace industries.

However, machining magnesium comes with some risks. It can be a fire hazard, as it can burn even underwater, in nitrogen, or in CO2.

High-Precision & Tight-Tolerance CNC Machining

Precision is at the core of our CNC metal machining services. Typical tolerances reach ±0.01 mm, with tighter tolerances available for critical features.

Quality is maintained through:

Controlled machining parameters

In-process inspection

Final verification using CMM and precision measuring tools

This ensures repeatable results from the first part to the last.

Custom CNC Metal Parts Manufacturing

We specialize in custom CNC metal machining, producing parts strictly according to your drawings. Whether you need a single prototype or thousands of production parts, we adapt the process to your requirements.

Our team also provides design-for-manufacturability (DFM) feedback to help reduce cost, improve machinability, and avoid unnecessary risks.

CNC Metal Prototyping & Production

Prototype machining: Fast turnaround for design validation

Low-volume production: Ideal for pilot runs and early market testing

High-volume CNC machining: Stable processes for long-term production

Many customers start with CNC metal prototypes and scale seamlessly into production using the same machining process and quality standards.

Industries We Serve

Our CNC metal machining services support industries that demand reliability and precision:

Automotive metal parts machining

Aerospace metal machining

Medical metal component machining

Industrial equipment and electronics

Each industry has different requirements – we adjust materials, tolerances, and inspection methods accordingly.

Clear Process, Reliable Results

CNC metal machining made simple, predictable, and reliable.

Send us your drawings and requirements. Our engineering team will review your project and provide a clear quotation with realistic lead times.

Full Process of Aluminum Alloy Prototype Manufacturing

Authentic Craftsmanship, Fully Traceable.At our factory, every aluminum alloy prototype isn’t simply “machined out”—it’s meticulously crafted through a standardized, traceable, and strictly quality-controlled process. Below are the authentic production steps you can see and verify:

1. Strict Raw Material Selection — Ensuring Quality from the Source

We exclusively use aluminum alloys sourced through legitimate channels, meeting national standards or aerospace specifications (e.g., 6061-T6, 7075-T6). Each batch comes with a Material Test Report (MTR) guaranteeing composition and mechanical properties meet requirements. We never use recycled materials or aluminum from unverified sources.

2. Engineers Deeply Involved in Programming — More Than Just “Running Programs”

Our CNC engineers manually optimize machining paths based on part geometry, clamping methods, and tool characteristics to prevent overcutting, vibration, or deformation. Programs undergo simulation verification before execution, ensuring precision on the first pass.

3. Rough Machining: Steady Progress, Deformation Control

Excess material is rapidly removed while strictly maintaining uniform allowances. A layered cutting strategy minimizes deformation caused by internal stress release—a prerequisite for high precision.

4. Finishing: Micron-Level Precision, Where Details Reveal Excellence

Final cuts are performed in a temperature-controlled workshop using high-rigidity equipment and precision tools. Critical dimensions are controlled within ±0.01mm, with surface roughness reaching Ra0.8μm, meeting assembly and functional requirements.

5. Multi-Face Machining: Precise flipping, consistent overall

For complex parts, we employ specialized fixtures or reference plane reconstruction techniques to ensure accurate feature positioning after flipping, avoiding a “patchwork” appearance.

6. Process Inspection: Eliminating “Blind Machining”

In-machine measurement or offline sampling inspection follows critical processes. We validate using digital calipers, micrometers, height gauges, and even coordinate measuring machines (CMM)—data is traceable, results are verifiable.

7. Final Inspection: Zero Defect Tolerance

Every finished part undergoes dual verification by inspectors: visual inspection + gauge verification:
✅ Dimensions match drawings
✅ Structure free of defects or burrs
✅ Surface free of scratches, vibration marks, or dark spots
Only fully compliant parts proceed to next stages.

8. Surface Treatment: Customized for Enhanced Durability

Choose based on your application environment:
– Natural Anodizing (corrosion resistance + aesthetics)
– Hard Anodizing (high wear resistance)
– Sandblasting + Passivation (matte finish + rust prevention)
All treatments performed at certified partner facilities with accompanying reports.

9. Secure Packaging, On-Time Delivery

Components individually packed in anti-static bags + bubble wrap + reinforced cardboard boxes, with extra protection for vulnerable parts. Pre-shipment photo verification and tracking information provided—guaranteeing worry-free receipt.

Why Do Clients Choose Us Repeatedly?

Because we insist on:
◉ No cutting corners — materials, labor, and craftsmanship done right the first time
◉ No hiding issues — Proactively communicate and advise on design risks
◉ No ambiguous delivery — Every step is feedbackable, verifiable, and traceable
Your prototype isn’t just a product; it’s a vessel of trust. We safeguard that trust with authentic craftsmanship, reliable processes, and transparent communication.

CNC Metal Machining Parts

Custom-machined metal components with tight tolerances, stable quality, and consistent batch production – suitable for industrial, electronic, and structural applications.

Aluminum Shell & Aluminum Panel

Precision-machined aluminum housings and panels with clean edges, accurate dimensions, and reliable surface finishes, ideal for equipment enclosures and functional assemblies.

What Factors Should Be Considered in CNC Metal Machining?

Planning to machine metal parts using CNC (Computer Numerical Control) machines? Don’t rush to place your order! Carefully considering these key points beforehand can save you time, control costs, and minimize rework.

1.Choose the Right Material

Stronger isn't always better—the most suitable material is key. Aluminum Alloy (e.g., 6061): Easy to machine, lightweight, and affordable—ideal for most prototypes and structural parts. Stainless Steel: Corrosion-resistant and high-strength, but difficult to machine and more expensive. Titanium Alloy: Lightweight and strong, but costly and slow to machine—primarily used in aerospace or medical applications.
✅ Tip: Whenever performance requirements allow, prioritize machinable materials to significantly reduce time and costs.

2.Design for Machinability:

Machines have their limits Avoid deep narrow slots, internal sharp corners, and ultra-thin walls (<0.5mm) where tools cannot reach or are prone to breakage. Don't over-specify tolerances: Use ±0.1mm for non-critical dimensions; ±0.01mm will significantly increase costs. Minimize variations in hole diameters and chamfer types—fewer tool changes mean higher efficiency.
✅ Tip: Conduct a “manufacturability check” before sending drawings—we offer free optimization assistance.

Bottom line: Great parts = Sound design + Right materials + Clear requirements + Early communication

Quality Assurance in CNC Metal Machining

We use professional inspection tools to ensure every machined part meets your specifications.

◉ Height Gauge – Checks height, steps, and hole depth for machining accuracy.
◉ Optical Measuring System – Verifies dimensions, shape, and position of precision parts.
◉ Hardness Tester – Confirms material strength and wear resistance.

Reliable Packaging for Safe Delivery

Each part is packed carefully to prevent damage during transport, so your products arrive ready to use.
From small precision parts to large machined components, we choose the right packaging method based on size, weight, and protection needs. Packaging materials include PP bags, cartons, PVC trays, and wooden crates.
Product Protection – Prevents scratches and impact damage
Outer Box Protection – Ensures strength during transport
Tray Protection – Keeps parts stable and organized
Wooden Crate Protection – For heavy or high-value items

FAQs & Solutions of CNC Metal Machining

What Is Metal Machining?

Metal machining is the process of shaping metal parts using CNC machines. It is a precise manufacturing method where raw metal is cut, shaped, or drilled to create the final product. This process uses tools like milling machines, lathes, and drill presses to achieve the desired design.

How Much Does Cnc Metal Machining Cost?

The cost of CNC metal machining can vary depending on several factors, such as the complexity of the design, the material used, and the level of precision required. While there is no fixed price, you can reduce costs by optimizing your design and working with experienced fabricators.

How Does CNC Machining Work for Metal Parts?

The working principle of cnc metal machining can be outlined through the following steps:
◉1.Designing the Part
Engineers use CAD software to create a 3D model of the part.
◉2.Making the CNC Code
The CAD model is converted into CNC machine code (like G-code) using CAM software. This code tells the machine how to cut the part.
◉3.Sending the Program to the Machine
The CNC code is transferred to the machine through a connection (e.g., USB or Ethernet).
◉4.Reading the Code
The machine’s control system reads the code and moves the parts of the machine, like the spindle and table.
◉5.Machining the Part
The machine follows the code to cut, drill, and shape the part.
◉6.Monitoring and Adjusting
The CNC system checks the position and cutting force during machining and adjusts if needed to ensure accuracy.

What Formats Are Typically Used For Drawings? What Are Their Respective Functions?

2D drawing formats: Commonly used formats include PDF or DWG, which are primarily used to clearly present critical information such as product technical specifications, material requirements, quantities, tolerance ranges, and post-processing procedures, providing detailed guidance for manufacturing.
3D drawing formats: Commonly used formats include STEP or IGS, which can visually display the product’s three-dimensional structure, dimensions, and assembly relationships, enabling programmers to quickly understand the design intent and generate machining paths.

What Are the Key Processes for High-Precision CNC Metal Machining?

CNC (Computer Numerical Control) metal processing technology is one of the key technologies in modern manufacturing industry, which realizes high-precision and high-efficiency metal processing through automated processing by computer-controlled machine tools.
The main process of CNC metal machining offers key benefits including:◉High precision ◉High efficiency ◉Flexibility ◉Stable quality
1.Cutting
◉Cutting: It is the most common process in CNC machining and includes turning, milling, drilling and boring.
Through the CNC system of CNC machine tool, the tool cuts the metal material in a predetermined path, removing the excess part to make the workpiece reach the desired shape and size.
◉Turning: Mainly used for machining rotary parts.
CNC lathes realize the machining of cylindrical, conical, threaded and other shapes by rotating the workpiece and moving the tool.
◉Milling: Using multi-tooth tools to rotate and cut the workpiece, it is suitable for machining complex shapes such as flat surfaces, grooves, teeth, etc.
CNC milling machines can carry out three-axis, four-axis or even five-axis linkage machining, which greatly enhances the flexibility and efficiency of machining.
◉Drilling: for machining holes.
CNC drilling machines can perform precise positioning and multi-hole machining, improving productivity and hole accuracy.
◉Boring: Used for enlarging and finishing existing holes, the CNC drilling machine realizes high-precision internal hole machining by precisely controlling the tool path.
2.Grinding
◉ Grinding: a high-precision surface machining process that uses abrasives (such as grinding wheels) to make micro cuts on the surface of the workpiece.
CNC grinding machines can precisely control the grinding parameters to achieve high surface quality and high dimensional accuracy, and are widely used for the surface treatment of precision parts and the machining of hard materials.
3.Wire EDM
◉Wire EDM: Erosion of metal materials by electric spark discharge to realize the machining of complex contours and fine details.
CNC wire cutters utilize fine metal wires (usually molybdenum or brass wires) as electrodes to follow a predetermined path of electrical discharge cutting.
Wire cutting technology is suitable for machining hard-to-machine materials such as cemented carbide and mold steel, and can achieve extremely high machining accuracy and surface quality.

What Surface Treatment Options Are Available for CNC Machining?

Surface treatment is important in CNC machining to improve the look, function, and durability of parts. Here are the common methods:
1. Mechanical Treatment
◉ Surface Polishing
Use: Smooths out burrs and rough spots.
Effect: Makes the part safer and looks better.
◉ Sandblasting
Use: Blasts fine particles onto the part to clean it and smooth rough spots.
Effect: Increases strength, corrosion resistance, and helps coatings stick.
◉ Tumbling
Use: A process that smooths out imperfections on parts.
Effect: Improves surface quality.
◉ Drawing
Use: Creates textures on the metal surface.
Effect: Makes the part more visually appealing.
2. Chemical Treatment
◉Oxidation Treatment
Use: Adds a protective oxide layer, mainly on aluminum.
Effect: Increases hardness, corrosion, and wear resistance.
Types:
Transparent Oxidation: Preserves the metal’s color and improves its resistance.
Hard Anodizing: Gives extra hardness and wear resistance.
Chemical Film: Improves corrosion resistance and conductivity.
◉Passivation
Use: Forms a protective layer to prevent corrosion.
Effect: Protects the metal from reacting with the environment.
3. Physical Treatment
◉Electroplating
Use: Adds a metal coating to the part.
Effect: Prevents rust, improves appearance, and increases durability.
Common Uses: Car parts, screws, and trinkets.
◉Shot Blasting
Use: Blasts hard particles onto the surface.
Effect: Improves resistance to corrosion and fatigue, and gives a matte finish.
◉Paint Spraying
Use: Sprays a protective layer of paint.
Effect: Stops rust and improves appearance and durability.
4. Other Treatments
Other methods, like plastic spraying and hot dip galvanizing, are also used for specific needs in CNC machining.
Summary:
There are many surface treatment options in CNC machining. Each method helps improve the appearance and performance of parts, depending on the material, how the part will be used, and the cost.

How Can I Obtain A Cnc Parts Sample?

We offer samples for evaluation. The sample cost will be refunded when you proceed with mass production. In specific cases, free samples may also be available.

What Are Some Typical Examples Of Product Classification?

Robot Parts

Part Name: Humanoid/Quadruped Robot Parts Processing

Manufacturing Process: Multi-axis CNC Interlinked Processing

Surface Treatment: Black Hard Anodizing + Natural Anodizing

Material Used: Aluminum Alloy 7075

Processing Equipment: Five-axis Interlinked CNC Machining Center

Precision Requirements: According to drawing specifications

Product Features: High precision requirements, complex structural features

Deep-Sea Product Components

Part Name: Deep-Sea Release Device Component Parts

Manufacturing Process: Precision Turning and Milling

Product Features: Hard material, high sealing requirements

Material Used: TC2 Titanium Alloy

Surface Treatment: Natural Finish

Machining Equipment: CNC Machining Center

Precision Requirements: Finishing, critical positions with tolerances of ±0.03mm

Medical Product Parts

Part Name: Medical Rehabilitation Robot End-of-Arm Tooling Parts

Material Used: Stainless Steel 630

Manufacturing Process: High-Precision CNC Turning and Milling + Precision Mold Process

Surface Treatment: Polishing

Machining Equipment: Five-Axis Machine

Product Features: Small Size, High Precision

Customization: Yes

Communication Product Parts

Part Name: Smart 5G Communication Non-Standard Equipment Lightweight Alloy Parts

Manufacturing Process: CNC Milling and Turning

Product Features: Thin walls prone to deformation

Material Used: Imported lightweight alloy

Surface Treatment: Natural hard anodizing to prevent oxidation and corrosion of the part surface and increase surface hardness.

Machining Equipment: CNC machining center, drilling and tapping machine

Precision and Dimensions: Finished machining, with critical position tolerances of ±0.03mm

What Is Your Standard Lead Time?

Lead time varies depending on the order quantity but typically ranges between 7 and 20 days after the order is confirmed.

Can You Accommodate Urgent Orders?

Yes, we can prioritize urgent orders. With our flexible in-house production, we can rearrange schedules to meet your deadlines.

Is My Design Safe With You?

Absolutely. We protect your intellectual property and can sign a non-disclosure agreement (NDA) to ensure your designs remain confidential.

How Can I Monitor Production Without Visiting Your Factory?

We provide regular updates, including production schedules, photos, and videos, so you can track progress remotely.

Do You Offer Shipping Services?

Yes, we handle shipping by sea or air and support trading terms such as FOB, CIF, and EXW, making the process hassle-free for you.

Start Your CNC Metal Machining Project

Send us your drawings and requirements. Our engineering team will review your project and provide a clear, reliable quotation with realistic lead times.