CNC Milling Services

If you are looking for affordable CNC milling parts, you should consult Huili Metal Manufacturing Company. This is the leading CNC Company in China offering the most affordable yet top-quality industry products.

The company offers milling services for a wide range of materials such as metal, wood, and plastic. It provides high-precision CNC milling services using advanced Milling Machining centers. Whether you want the general 3 axis or the sophisticated 5 axis machining, we can guarantee the excellence of the services we provide.

Even better, the company’s operators are highly proficient in Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM). As such, you can be assured of the accuracy and affordability of the services you will get from us.

Some of the services we offer include high-speed CNC manufacturing, precision CNC milling & turning, and rapid prototyping. We make products for different industries, including defense, medical, aerospace, and automotive.

Huili CNC Milling Service Capabilities

We have a wide range of CNC milling services covering almost all industries. Our company has technologically advanced equipment and highly skilled and experienced personnel to ensure that you get nothing but the best from us. Here are our capabilities:

CNC Machining Services. We provide OEM milling services, plastic milling, aluminum fabrications, and other milling services. The company has six advanced CNC machines and CNC milling machining centers with high output.
3-Axis and 5-Axis Machines. These machines ensure that you get high-quality products. They also have high accuracy, stiffness, reliability, and speed. With these machines, you can expect nothing but quality from us. The 3-axis milling machines can handle a product dimension of 500 x 500, while the 5-axis one handles up to Ø 300.

How We Guarantee Quality Results

High Precision. This is one of the most important things we focus on because it ensures you get products that meet your desires. Whether your product is for defense, medical, aerospace, or automotive industries, our company will ensure it has an excellent precision level. Huili custom CNC milling parts boast tolerances of +/-0.001″ – 0.005″.
Multiple Materials for Diversity. To ensure that we can cover all your needs, our company has materials for different tasks. We have aluminum, stainless steel, alloy steel, plastic, nylon PA12/PA6/ABS/PC6045+, wood, copper, and brass. We cover over 50 metals and plastics!
Rapid Prototyping Services. If you want to see the design of your product before it becomes a reality, we offer 3D printing services and rapid prototyping (RP) services. The 3D printing services that we offer ensure the quick delivery of the product, while RP ensures you get a perfect final product because it can make any required modification.
Profitable Custom Design. The company offers an affordable design service. It offers the most competitive price, as well as quick delivery. Regardless of your product needs, you can be sure to get quality products with good designs from us.

What is CNC Milling, and How Does It Work?

CNC stands for Computer Numerical Control. This means that it uses numerical control technology to allow computers (instead of human beings) to control machine operations like milling, drilling, sawing, and turning.

The CNC machines used for milling have a worktable that can move in several axes or rotary axes to perform operations. These machines also have a spindle that drives the tool. In addition, they have a tool slide that moves back and forth. The machine reads the CNC program from a storage medium, such as a hard disk or flash drive.

Henceforth, it reads coordinates from the CAD file based on the size of the material being used to produce the part. Then it calculates how far and in which direction to move the cutter or tool to complete its operations. Subsequently, it moves the spindle and starts cutting or machining.

For a full CNC Milling Service, we have a control system with a large screen display and automatic tool changer. This means that instead of producing one part at a time like conventional machines, these can produce multiple parts in a single setup.

In addition, the company has a CNC lathe that offers a computer numerical control (CNC) system to make sure you get highly accurate products. It also features a touch screen interface and automatic tool changer.

CNC Milling Process - What is it?

The CNC milling process is complex. This is because it uses many sub-processes. Henceforth, the milling machine must perform several steps to complete the process. These include:

Designing CAD Model. The first step is designing the CAD model in CAD software. This means that you need to have an accurate design of what you want to achieve before sending it off for machining.
Convert the CAD Model into a CNC Milling Program. After completing the CAD model, you have to create a program for your CNC milling machine. In other words, you need to write code based on the design of the product.
Setting Up the CNC Milling Machine. The next step is setting up the CNC milling machine to ensure that it begins performing operations. For example, you have to attach a workpiece in place and adjust the head of the mill so it is in line with the table.
Running a Test Milling Operation. The final step is a test run of your product on an experimental basis. This is to see if you have made any mistakes in the design.

After completing the test run, you should cut the workpiece into small pieces (approximation of the shape and dimensions). You will then execute the CNC milling operation with unmatched accuracy and precision.

CNC Milling Operations & Types

CNC milling is best for producing CNC milled parts with top-notch accuracy and tight tolerances. You will also get prototypes in large or small batches. Here are operations that lead to the production of these parts:

Plain Milling/ Slab Milling/Surface Milling. This process utilizes plain milling cutters with cutting teeth on the periphery. The cutting tool is always parallel to the surface of the workpiece.
Face Milling. This process uses cutters that have cutting teeth on the periphery and sides. The spindle moves from side to side, together with an oscillating or circular tool-holding device. In other words, it performs a contouring operation by removing material from all sides of the workpiece.
Form Milling. This process utilizes cutting tools/fly cutters for purposes such as concave and convex cutting. It is ideal for creating contours, irregular surfaces, and curved surfaces.
Angular Milling. This method is used when milling flat surfaces. In this case, the workpiece is neither perpendicular nor parallel to the cutter axis.
Gear Milling. This is a process designed especially for creating gears.
Thread Milling. This process is used to cut features such as threads on the workpiece. In other words, it creates a screw thread with an even pitch that can be functional or non-functional. It requires a machine with the capability of moving on the X, Y, and Z-axis at the same time.
Profile Milling. This is a cutting process that uses multiple tools to remove material from a workpiece. It is also called horizontal milling and can be best described as a rough or finish cutting operation.
Straddle Milling. This process is used for creating slots and grooves parallel to the milling table. It may be useful for different types of applications with small or large parts.

Other milling operations include End Milling, Helical Milling, Gang Milling, Milling Keyways, Side Milling, Cam Milling, Grooves, and Slot.

CNC Milling Machines - Definition and Types

CNC milling machines are high-end machining tools available in different types. They employ a computer control system and allow the user to program different operations on a workpiece.

In other words, they are multipurpose machines that can produce a variety of parts with utmost accuracy. They use a rotating cylindrical tool (cutter) held in place by a spindle. This cutter is moved across the workpiece under the control of a moving table (X and Y axes) that follows instructions from a computer controller.

The main purpose of such machines is to use CAD data to create prototypes/products with utmost precision. The spindle rotates around its axis at extremely high speeds with the aid of servo motors. When it completes the programmed movements, it may need to stop for further instructions or return to its starting position.

CNC milling machines are now available in different sizes and with different specifications. You can find them with uncluttered work surfaces that minimize vibration during operations. The following are some of the most common types you will find on the market:

2-Axis CNC Milling Machine. This is ideal for cutting holes and slottings on the X and Z axis.
3-Axis CNC Milling Machine. This is a multipurpose machine that can cut, drill, and mill at the same time.
4-Axis CNC Milling Machine. This machine can rotate the x-axis, just like in lather. It is ideal for slotting jobs in addition to drilling, reaming, counterboring, and tapping. It offers great flexibility to users who need precise workpieces with tight tolerances.
5-Axis CNC Milling Machines. This is the most advanced machine. It allows the rotation of both the X and Y axis, making it possible to create parts with complex and compound angles.

CNC Milling Materials Used

CNC milling machines use different types of materials. The most common material used for CNC cutting is Aluminium alloys. Other materials include:

Stainless steels, titanium, steel, zinc, industrial/heavy metals, and bronze
PP, Pthermosets, Thermoplastics, PVC, and PE
Rubber (Elastomers)
Wood/ Chipboard
Ceramic
Glass

Applications of CNC Milling

CNC milling machines are ideal for cutting, drilling, and grinding job types. Here are some its major applications:

It is used to cut materials in various shapes. It also allows the user to make grooves on different surfaces. It can be adapted to handle simple or complex parts within a small or large work area.
The process is used in different industries to create a variety of products. Some of these industries include aerospace, automotive, electronics, marine, food & beverage, medical, oil & gas, power generation, and general manufacturing.
The process is also used in research and development (R&D) applications to create different products. It is also used for testing prototypes or producing specially engineered components for unique requirements.
With the help of this technology, manufacturers can create unique designs that cannot be created using conventional skills.

If you need any of these services, Huili Industrial can help you. We offer a wide range of CNC milling services at competitive prices.

Huili CNC Milling Surface Finishes

Huilicnc.com offers different finishing services for guaranteed quality and accuracy. The CNC milling surface finishes we offer include:

This is the most common finishing option. We offer high-grade paints for our customers, including solvent-based and water-based paint. This provides a protective layer that preserves the quality of your workpiece. We use different types of painting methods, including screen-printing, electrolytic polishing, and vapor deposition.
This is a chemical treatment applied on steel and stainless steel to remove the oxidation layer that is harmful to the surface of the metal. The removal of ferrous materials ensures corrosion resistance and reduced chemical reactivity.
This process involves passing an electric current through a solution containing dissolved metal. This causes metal to deposit on the workpiece surface when the current reaches an electrode sensitive to that metal.
Powder Coating. This is both a decorative and functional finish. It is available in different colors and coating styles, including gloss, matte, satin, textured, metal-like, pearlescent, intricate patterns, and more. The powder is applied electrostatically and cured under high heat.
Sand Blasting. This process uses high pressure to propel abrasive media against the material that will be altered or removed. It can create different surface finishes like smooth or rough textures on a workpiece.
This is a process that is used to preserve aluminum components. The anodic coating prevents the metal from corroding. It forms a layer of aluminum oxide for guaranteed longevity.
Polishing/Buffing. This finishing uses abrasives to create a smooth surface finish. It is done manually or with machines, depending on the extent of polishing required.
Black Oxide/ Blackening/ Hot Blackening/ Gun Bluing. This is a process in which metals are oxidized or burned to blacken them. The method is applied to metal parts for a stylish and polished look. It is used in zinc, stainless steel, copper, ferrous, and silver materials.
Conversion Coating. This is a process that uses electrochemical processes to change the external appearance of metals. The coating or plating creates a thin layer on top of the surface of the metal, creating a hard and durable finish. We offer conversion coatings in different colors, such as gold, silver, black, bronze, and more.

Huili also provides CNC finishing services tailor-made to suit the desires and preferences of our clients.

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