There are various kinds of products, on technologies to produce the mass majority of products for civilization. Around them, machining operations have a very important place. With machining operations, various kinds of shapes and sizes of products can be produced from different materials.
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In this article, you will see the general types and classifications of machining operations that are generally used.
Motions in Machining Operations
To understand the differences between the different machining operations, you need to understand the general motions to accomplish the machining operations.
These motions are also called primary motions which state the relative motions between the tool and the work part. The primary motion is cutting speed. The secondary motion is the feed. Cutting speed is determined by the speed of motion of the tool and the work part. Feed motion is the secondary motion that determines the general speed.
General Types of Machining Operations
The most common types of machining operations are; turning, drilling, and milling operations. In general, other types of machining operations are derived from these operations. With a good understanding of turning, drilling, and milling operations, you can understand other types of complex machining operations as well.
Turning
In the most basic aspects, turning operations are used for the production of cylindrical parts. The speed motion is produced by the rotating work part which is mounted on the turning machine. Feed motion is accomplished by the cutting tool. Material removal is like this in turning operations.
Drilling
Drilling is the most basic to the understanding machining operation. In drilling operations, the cutting tool is fed into the work part to create holes in it. The feeding motion is accomplished in the direction of the axis of the cutting tool. In general, cutting tools have 2 cutting edges.
Milling
In milling operations, the cutting tool has multiple cutting edges that rotate around its axis. The fed motion of the cutting tool is accomplished over the work surface which is perpendicular to the axis of rotation of the cutting tool. Both feed and cutting motions are done by the cutting tool. Milling operations are generally used to create slots and surfaces over the work parts.
Conclusion
These are the general types of conventional machining operations. Over these operations, there are other conventional machining operations applied to improve the surface finish of work parts. Shaping, sawing, planing, and broaching can be given as examples of these other conventional machining operations.
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