Custom CNC Milling Services

Custom CNC milling machines can be used to create square/flat faces, grooves, chamfers, channels, profiles, keyways, and other features that require precise cutting angles. Most CNC operations can be accomplished with milling and turning, making this a versatile option for most customers. Tianhui Machine‘s multi-axis CNC milling and turning machines are able to process a range of instructions to produce end products with a variety of industrial applications. Our engineers work closely with you to ensure that custom CNC machining is accurate to optimize your production.

CNC milling is a technology developed for the production manufacturing industry. Richard Kegg built the first CNC machine in 1952 under the name “Cincinnati Milacron Hydrotel” and the technology became commercialized five years later in 1958.

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What is CNC Milling?

Computer numerical control (CNC) milling is a typical machining process used to produce complex parts. This machining method produces high-precision custom workpieces and can cut a variety of materials such as glass, plastic, metal and wood.

Types of CNC Milling Machines

Depending on the type of material and the product being manufactured, machines using CNC technology can be divided into various types as follows:

Horizontal Milling

In horizontal milling, a CNC cutting tool with a spindle mounted is placed horizontally and pressed along the workpiece. This machine is ideal for handling heavier and deeper cuts.

Vertical Milling

In vertical milling, the spindle is placed vertically and moves a rotating cutting tool to remove material from a stationary workpiece. Vertical milling machines are easy to program and have a variety of features such as high tool cutting efficiency, stable performance and good rigidity.

Multi-axis Milling

In multi-axis milling, the machine tool usually moves in the X, Y and Z axes and rotates in the A and B axes. These machines enable complex machine tool operations with high precision.

We have high standards for CNC milling

We manufacture your custom parts according to strict manufacturing standards and ensure that all parts and processes meet Tian hui standards.

*A variety of surface treatments are available to improve the appearance quality of the machined parts.

*Our manufacturing partners inspect each custom part on site according to our guidelines.

*Inspection reports and other types of quality documents are available upon request to ensure the highest quality and compliance.

Milling Machine Parts

The main parts of a milling machine are:

Column and Base
The column and base are important castings that assist all other milling machine parts.

Knee
The knee is a casting that supports the table and saddle components, and all the transmission mechanisms are adapted to it.

Saddle
The saddle is located between the knee and the table and plays a transitional role between the knee and the table.

Table
During milling, the table holds the workpiece and is located above the knee.

Spindle
The spindle is a component used to hold and drive the cutting tool and provide rotational movement to the tool and spindle on the machine.

Overarm
This component is used to fasten the spindle and tool holder and consists of a cylindrical rod that slides with the help of a hole in the column.

Milling Head
The milling head consists of a drive motor, spindle and other control mechanisms and is located in the upper part of a vertical milling machine.

Memory
It is the upper arm in a vertical milling machine that supports the spindle and is adjustable to provide various positions during milling.

Types of Axes

The number of axes on a CNC milling machine affects the level of detail it can cut, the type of work it can perform, and the position of the workpiece it can shape. The various types of axes in milling machines that run on CNC automation include:

3-axis
In a 3-axis machine, the cutting tool moves along the XYZ axis and trims the material while the workpiece remains stationary. It is ideal for parts that do not require much detail and depth. 3-axis machining is used to produce mechanical components and is suitable for drilling, slotting, and interactive operations.

4-axis
In 4-axis machining, the workpiece remains in the same position as in 3-axis machining, but a rotary motion is added on the X or A axis. The rotary motion helps the workpiece to be cut on the B axis.

4-axis machining is advantageous when cutting or drilling holes on the side of the workpiece is required and is suitable for continuous cutting, intermittent cutting, and engraving surfaces.

5-axis
In a 5-axis machine, the workpiece is automatically manipulated from five sides at a time. In addition to mechanical movement on the X, Y, and Z axes, 5-axis machines can also operate on either side of the three rotational axes (A, B, C).

5-axis machining facilitates the manufacture of complex, sturdy objects and is primarily used in the automotive, aerospace, medical, and energy industries.

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CNC Milling Materials

Aluminum

Steel

Steel 1.0038 / S235JR
Steel 1.0503 / C45
Steel 1.0511 / C40
Steel 1.0570 / S355J2G3
Steel 1.1191 / XC48H1 / C45E
Steel 1.2379 / X153CrMo12 / SKD11, annealed
Steel 1.2842 / 90MnCrV8
Steel 1.7131 / 16MnCr5
Steel 1.7218 / 25CrMo4
Steel 1.7225 / 42CrMo4

Stainless steel

Stainless Steel 303 / 1.4305 / X10CrNiS18-9
Stainless Steel 304 / 1.4301 / X5CrNi18.10
Stainless Steel 304L / 1.4307 / X2CrNi18-9
Stainless Steel 316 / 1.4401 / X5CrNiMo17122
Stainless Steel 316L / 1.4404 / X2CrNiMo17-12-2
Stainless Steel 316Ti / 1.4571 / X6CrNiMoTi17-12-2

Copper

Copper E-Cu57 / 2.0060 / E-Cu58 / 2.0065

Brass

Brass Ms58 / 2.0401 / CuZn39Pb3

Titanium

Titan Grade 2 / 3.7035
Titan Grade 5 / 3.7164 / 3.7165 / Ti-6Al-4V

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Materials Used

Once you have decided to use CNC machinery to manufacture your product, you can then choose the perfect material that will suit your requirements. The various materials that are suitable for CNC machines include:

*Metals like aluminum, steel, titanium, copper, brass, zinc, bronze, magnesium.
*Plastics like PVC, nylon, and PEEK.
*Other materials like wood, fiberglass, foam.

CNC Milling Process

Milling machines using CNC technology use computer programming codes to operate the machine tools used to cut and shape the material. All CNC machining processes follow these stages:

*Design the part in a CAD model.
*Convert the CAD file into a CNC program for machining.
*Set up the machine.
*Perform the production of the part.

Tianhui Also Offers These Services

CNC Turning

In lathe machines, pieces are cut in a circular direction with indexable tools. With CNC technology, the cuts employed by lathes are carried out with precision and high velocity. CNC lathes are used to produce complex designs that wouldn’t be possible on manually run versions of the machine. Overall, the control functions of CNC-run mills and lathes are similar.

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CNC Drilling

CNC drilling services produce precise round holes or threaded defects, typically for machine screws and bolts. Drilling can produce CNC drilled parts in metal, hard plastics, wood, and most other rigid materials. There are several types of drilling machines available for CNC, including these: upright, table, and radial.