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Types of CNC Milling

Depends on the request of different parts, there are several different Milling Types as following:

Vertical milling

With vertical milling, a 3-axis milling table is the work surface, which sits below the arm, to which a spindle is attached. 
The spindle can be stationary if a vertical turret mill is used. In this case, the table moved along both X and Y axes. Meanwhile, if a bed vertical mill is used, the table only

 moves along the X-axis. The spindle travels along the length of the arm, in the Y-Axis direction. 

 

Horizontal milling

With horizontal milling, the spindle operates horizontally as opposed to vertically and all other components are similar to vertical milling. Generally speaking, horizontal mills

 are best suited to heavier projects or longer projects. They are also suited to parts that require a large amount of material to be removed as the swarf falls away from the part and cutter.

 

Face milling

The cutting tool’s axis of rotation is perpendicular to the surface of the workpiece.
It employs face milling cutters, with teeth both on the periphery and the tool face, the latter of which is used for finishing applications. Face milling is also used to create flat

surfaces and control on a finished piece. Face milling can produce higher quality finishes than other milling processes and is compatible with both vertical and horizontal milling machines.

 

Plain milling

The cutting tool’s axis of rotation is parallel to the surface of the workpiece. Plain milling cutters have teeth on the periphery that perform the cutting operation. Both narrow and

 wide cutters are used. This allows for deeper cuts, and for larger surface areas to be worked on.  A course and fine-toothed cutter are both used.  Slow cutting speeds and fast

 feed rates are used for the course cutter, and vice versa for the fine-toothed cutter. This enables a more detailed final part.

 

Angular milling

This is a milling operation where the cutting tools’ axis of rotation is at an angle relative to the surface of the workpiece. Single angled milling cutters can, therefore, produce

 more angular features, such as grooves, serrations or chamfers. 

 

Form milling

Form milling is best used for milling operations where there are more irregular surfaces involved. Contours, outlines, edges, for example, or parts with curved, flat surfaces.

It employed milling cutters or fly cutters specialised for particular applications – for example, concave cutters or corner rounding cutters. Hemispherical or semi-circular designs or other similarly intricate designs with complex parts would benefit from the form milling technique.