Principle of Manufacturing Engineering sheet 7

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1) Answer all the following questions:

1. Show the nomenclature of a single point cutting tool using orthographic projections.








2. Show nomenclature of the following cutting tools:

(i) Single point cutting tool

(i) Back rake angle

(ii) Side rake angle

(iii) End relief angle

(iv) Side relief angle

(v) End cutting edge angle

(vi) Side cutting edge angle

3. Explain orthogonal cutting and oblique cutting






4. Explain mechanism of chip formation with neat sketches.


5. Explain various types of chips with neat sketches.


6. Describe the various types of chips in metal cutting.

1. What is a chip breaker

Chips are separated from the workpiece to impart the required size and shape to the workpiece.

2. Orthogonal cutting

cutting edge at 90 to the direction of job tool motion

3. Oblique cutting

cutting edge inclined in plane view

4. Friction of chip and tool.

continuous chip with built-up edge. During cutting operation, the temperature rises and as the hot chip

passes over s the face of the tool, alloying and welding action may take place due to high pressure,

which results in the formation of weak bonds in microstructure and weakened particles might pullout

Owing to high heat and pressure generated, these particles get welded to the cutting tip of the tool and

form a false cutting edge

2- Put a line under the correct answer: (MCQ)

1/ ………………. the angle between the portion of the end flank below the cutting edge and a line

perpendicular to the base of the tool

a) End relief angle b) Side relief angle c) Side cutting edge angle d) Back rake angle

2/ ……………… is the angle between the face of the tool and a line parallel with base of the tool

measured in a perpendicular plane through the side cutting edge

a) End relief angle b) Side relief angle c) Side cutting edge angle d) Back rake angle

3/ ………………is the angle which responsible for turning the chip away from the finished surface

a) End relief angle b) Side relief angle c) Side cutting edge angle d) Back rake angle

4/ ……………… is the angle by which the face of tool is inclined side ways

a) End relief angle b) Side rake angle c) Side cutting edge angle d) Back rake angle

5/…………….. Angle between side cutting edge and end cutting edge in the top surface plane of tool.

a) Side rake angle b) Side relief angle c) Side cutting edge angle d) Nose angle 

المكان: 3CC9+F27، طريق المنصورة - دمياط، القديم الشرقي، المنصورة، الدقهلية 35511، مصر

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Principle of Manufacturing Engineering sheet1

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Principle of Manufacturing Engineering sheet 4

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Principle of Manufacturing Engineering sheet 8

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