CNC Milling: A Versatile Process

Computer Numerical Control (CNC) Milling is an automated machining process used for drilling, facing, and turning functions. The machines used for this process are classified based on the number of axes they have. CNC milling is a cutting process that removes metal or plastic from a block of stock material through the rotating action of the tool. The tool moves in three or more directions to achieve the desired cut.

CNC Milling

The Working Principle of CNC Milling

CNC Milling machines use a set of commands called G-codes to operate. These codes are alphanumeric functions used for programming the machines.

  1. Introduction to CNC Milling
  2. The Working Principle of CNC Milling
  3. Programming CNC Milling Machines with G-codes
  4. Types of Cutter Shapes for CNC Milling
  5. Advantages of CNC Milling
  6. Specifications for CNC Milling
  7. Precision and Surface Finish in CNC Milling
  8. sinc-cnc: A Provider of Custom CNC Machined Parts

CNC Milling

Programming CNC Milling Machines with G-codes

The cutting tool rotates along an axis perpendicular to the table where the material to be cut is placed. Different cutter shapes or milling bits, such as round (ball end), square, and angled, can be used.

CNC Milling

Types of Cutter Shapes for CNC Milling

Advantages of CNC Milling include the ability to create a large variety of 2D and 3D shapes from rod, block, or sheet material, and cost-effectiveness for short runs.

Advantages of CNC Milling

Specifications for CNC Milling include the use of rigid materials such as metals and hard plastics, the use of alternative machines for 2D sheet shapes (such as Laser Cut, Turret Punch, and fixed punch), and the need for software program tooling or work holding jigs. To contain costs, avoid large variations in workpiece height and thin walls.

Specifications for CNC Milling

CNC Machining centers are computer-controlled vertical mills that can move the spindle along the Z-axis. When used with conical tools or a ball nose cutter, it improves milling precision without affecting the speed and provides an economical substitute for flat surface jobs that require hand engraving.

CNC Milling

Precision and Surface Finish in CNC Milling

During the milling process, pressure is applied to the material, so it is better to avoid weak shapes, long thin shapes, or ones with thin walls. CNC milling offers a cut surface with a visible pattern due to the rotation and movement of the cutter.

sinco-cnc: A Provider of Custom CNC Machined Parts

sinco-cnc is a unique online CNC provider that offers information about a vast number of products and machines, including CNC Milling machines. The company allows you to design and order custom CNC machined parts.


SINCO-CNC offers a wide range of precision machining services for various materials such as aluminum, steel, copper, plastic, and PEEK. Our services include:

At SINCO-CNC, we have skilled professionals who are proficient in CAD and CAM software, as well as advanced equipment and tools. With our precision machining services, we can produce parts that meet

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