A Milling machine like those found when you visit http://www.cam-machine.com/cnc-milling/ will use a wide range of cutting tools, depending on the desired end result of the workpiece. One of the most important cutting tools for milling machines is the end mill. However, there are many different types of end mill, the end mill generally being used in industrial milling applications. The cutting tools for milling machines used by precision engineers and CNC experts will remove material from the workpiece with their movement, allowing for the creation of many different intricate designs that would be almost impossible to create by hand.
The end mill is distinguished from other cutting tools for milling machine and from a drill bit by its geometry, application, and manufacture. An end mill can cut in all directions, making it a far superior piece to a standard drill bit that can only cut in an axial direction. End mills are used in face milling, plunging, tracer milling, and profile milling, and there are many different types of end mill used in each type of application.
Cutting Tools for Milling Machines: Different Types of End Mills
A roughing end mill will, like its name explains, leave a rough finish on the workpiece. However, this rough finish is not suitable for many products, and although it is a fast process to use a roughing end mill, the process will almost always be followed by a smoothing with a finishing end mill. A finishing end mill will leave a perfect finish to your part, and it will then be ready to be used or sold on to your customer.
End mills can also be ball end or square, a square mill being used when you require a square corner at the bottom of your channel. A ball end will add detail to your stock, and can be used in combination will other milling tools. A round edged milling tool will produce round edges, and this will also make chipping less common. Round edge milling tools have a long life, and they are often used for making molds from cast iron and steel. They are also sometimes known as bull nose tools.
Your end mill can also be tapered, a taper degree end mill being capable of making angled slots within molds. A drilling end mill on the other hand is capable of turning through 90 degrees, therefore allowing it to drill slots, side mill, profile, and bevel. Another way to make angled and beveled cuts is to use a chamfer end mill. A Chamfer tool may have two or four flutes, two flutes providing better chip clearance and flour flutes producing a finer finish to the part you are creating.
End milling tools can also be corner rounding, concave radius, or convex. A rounding tool will round off sharp corners that have been created, a concave cutting tool making outward curves, and a convex tool making inward and hollow curves. A standard milling machine found in your local CNC milling shop will be able to accommodate all these type of cutting tools, and more, allowing one single machine to perfectly manufacture an almost infinite number of precision engineered parts.
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