Single-point tool angles: definition of side rake angle Choose the correct description of the <em>side rake angle</em> of a single-point cutting tool. Select the accurate definition.
Mechanical Engineering
Production Engineering
Difficulty: Easy
Choose an option
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AThe angle by which the face of the tool is inclined towards the back (away from the cutting edge).
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BThe angle by which the face of the tool is inclined sideways (across the tool width).
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CThe angle between the surface of the flank below the point and a plane at right angles to the tool point centre line.
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DThe angle between the surface of the flank below the point and a line from the point perpendicular to the base.
Answer
Correct Answer: The angle by which the face of the tool is inclined sideways (across the tool width).
Explanation
DefinitionsSide rake angle: inclination of the tool face sideways to assist chip flow across the tool.Back rake angle: inclination of the tool face towards the shank/back of the tool.
Why others are incorrect(C) and (D) describe clearance/relief angles, not the side rake.
Final AnswerThe angle by which the face is inclined sideways.