Machining process

Machining process:

Machining is the process of cold working the metals into different shapes by using different types of machine tools. This process is mainly used to bring the metal objects produced by means of different fabrication techniques to final dimensions.

Machining is accomplished with the use of machines known as machine tools. For production of variety of machined surfaces different types of machine tools have been developed. The kind of surface produced depends upon the shape of cutting, the path of the tool as it passes through the material or both. Depending on them metal cutting processes are called either turning of planning or boring or other operations performed by machine tools like lathe, shaper, planer, drill, miller, grinder etc.

Classification of machining processes:

Machining process are material removing operations in which the desired shape and surface finish on the finished product are obtained by removing surplus material.

1. Metal cutting:

(i) single point cutting:

·         Turning

·         Boring

·         Shaping

·         Planning

(ii) Multi-point cutting:

·         Milling

·         Drilling

·         Tapping

·         Hobbing

·         Broaching

2. Grinding and finishing:

(i) Grinding:

·         Surface grinding

·         Cylindrical grinding

2. Grinding and finishing

(i) Grinding:

·         Surface grinding

·         Cylindrical grinding

·         Centre less grinding

          (ii) Finishing:

·         Lapping

·         Honing

·         Superfinishin
   3. Unconventional machining:

·         Ultrasonic machining

·         Electro discharge machining

·         Electro-chemical machining

·         Laser beam machining

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