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DIFFERENCE BETWEEN ORTHOGONAL AND OBLIQUE CUTTING EXPLAINED !!

Metal cutting is “the process of removing unwanted material in the form of chips, from a block of metal, using cutting tool”.

Methods of Metal Cutting:

There are two basic methods of metal cutting based on cutting edge and direction of relative motion between tool and work:

(i) Orthogonal cutting process

(ii) Oblique cutting process 

(i) Orthogonal Cutting Process:

In orthogonal cutting process, the cutting edge is perpendicular (90 degree) to the direction of feed. The chip flows in a direction normal to cutting edge of the tool. A perfectly sharp tool will cut the metal on rack surface.

(ii) Oblique Cutting Process:

In oblique cutting process, the cutting edge is inclined at an acute angle (less than 90 degree) to the direction of feed. The chip flows sideway in a long curl. The chip flows in a direction at an angle with normal to the cutting edge of the tool.

Difference between the two is discussed in detail in the table below:


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