MECHANICAL ENGINEERING SHORT NOTES [ METAL CUTTING ] ~ MECHANICAL ENGINEERING SHORT NOTES

MECHANICAL ENGINEERING SHORT NOTES

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Mechnotes presents high quality handwritten short notes for various examinations of mechanical engineering which includes GATE, SSCJE, PSU, and ESE. Short notes are the ultimate weapons during the whole preparation. Many students usually do not come up with short notes and they suffer badly in the last few days or months before the examination. Short notes must be clean and error-free so that you can make the best use of that in limited time. It will help you in quick revision and boost your confidence. Here you will get mechanical engineering short notes with high-quality content.

Subject- Production

Topic- Metal Cutting & Tool Wear

Orthogonal and Oblique cutting
Tool geometry
Merchant Circle Diagram
Types of chips
Mechanism of Tool Wear
Crater and Flank Wear
Taylor's Tool Life
Economics of machining

And many more related terms of metal cutting.

Machining of materials is done to get a high surface finish, requires tolerance and complex geometry shape which is difficult to obtain without machining. In a machining operation, metal is removed in the form of chips to get the required final shape. A cutting tool is required to cut the material. The cutting tool has some features like rake angle, clearance angle and lip angle.

A general cutting operation such as milling or turning is 3D operations and called Oblique cutting and it is very difficult to analyze because of three-dimensional operation. To simplify the analysis, the cutting operation is considered as Orthogonal cutting in which the cutting edge is perpendicular to cutting velocity.

In metal cutting, operation chips are formed due to the plastic deformation of the material in the shear zone. The actual separation of material starts from the tool-tip interface as yielding or fracture depends upon material condition. The chip starts flowing over the rake surface and lifted away from the tool, hence resultant curvature of the chip becomes curl.

Chips can be of three types-

Continuous Chips
Discontinuous Chips
Chips with BUE (Build up edge)

Tool Designation-

ASA System- The American Standard Association designation of the tool nomenclature based on geometrical nature and not relatable to the machining process.
ORS System- In the Orthogonal Rake System, the actual cutting plane is utilized.

Metal Cutting is one of the important topics in production in terms of marks and frequently asked in different examinations. By putting some extra effort it is easily possible to solve all the problems related to it.

In short notes, all important concepts and formulas are present there. It will help you in steady quick revision and save your precious time so that you can practice more problems related to Metal Cutting.

Always refer to standard textbooks for doubt.

Here are some sample snaps for the Metal Cutting.

The pdf contains a total 12 no. of pages that cover every aspect of the Metal Cutting.

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