Lecture 01: Theory of Metal Cutting Tool Geometry Introduction

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In metal cutting, which method involves the cutting edge remaining at 90 degrees to the direction of feed?

Orthogonal machining

Orthogonal cutting (correct)

Oblique machining

Oblique cutting

What is the characteristic of the chip flow in oblique cutting?

Normal to the cutting edge

At an angle to the normal to the cutting edge (correct)

Parallel to the tool face

At an angle to the direction of feed

Why does orthogonal cutting result in a smaller shear force per unit area compared to oblique cutting?

The acute angle of the cutting edge

Because of the larger area on which shear force acts (correct)

Due to the smaller size of the workpiece

Because of two perpendicular components of cutting forces

What is the role of the inclination angle in oblique cutting?

It influences the chip flow angle Signup and view all the answers

How does the size of the cutting edge compare between orthogonal and oblique cutting?

Bigger in orthogonal cutting Signup and view all the answers

What is the primary goal of manufacturing?

To convert raw materials into finished products Signup and view all the answers

What is the purpose of metal cutting in manufacturing?

To produce jobs of desired shape and dimensions Signup and view all the answers

Why is a cutting tool required to have very high hardness compared to the workpiece?

To enable efficient removal of material from the workpiece Signup and view all the answers

How does machining differ from other manufacturing processes?

Machining involves removing material from preformed blanks Signup and view all the answers

What are the two primary aspects of a physical product's shape mentioned in the text?

Function and aesthetics Signup and view all the answers

Lecture 01: Theory of Metal Cutting Tool Geometry Introduction

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Questions and Answers

In metal cutting, which method involves the cutting edge remaining at 90 degrees to the direction of feed?

What is the characteristic of the chip flow in oblique cutting?

Why does orthogonal cutting result in a smaller shear force per unit area compared to oblique cutting?

What is the role of the inclination angle in oblique cutting?

How does the size of the cutting edge compare between orthogonal and oblique cutting?

What is the primary goal of manufacturing?

What is the purpose of metal cutting in manufacturing?

Why is a cutting tool required to have very high hardness compared to the workpiece?

How does machining differ from other manufacturing processes?

What are the two primary aspects of a physical product's shape mentioned in the text?

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