Chapter 9, Problem 9.78P

Interpretation Introduction

(a)

Interpretation:

Percent shrinkage during solidification of iron casting needs to be determined.

Concept Introduction:

Solidification is the process of forming a crystal structure form the molten metal.

Shrinkage is the defect in cast product occurred during solidification

Change in volume takes place due to Shrinkage

The material shrinks up to 7% during solidification volume of shrinkage material can be calculated as

  $V_{\text{Shrinkage}}=\frac{4}{3}\pi r^3$

Where,

r =radius of material

Interpretation Introduction

(b)

Interpretation:

Number of shrinkage pores in casting can be calculated as follows:

Concept Introduction:

Solidification is the process of forming a crystal structure form the molten metal.

Shrinkage is the defect in cast product occurred during solidification

Change in volume takes place due to Shrinkage

The material shrinks up to 7% during solidification volume of shrinkage material can be calculated as

  $V_{\text{Shrinkage}}=\frac{4}{3}\pi r^3$

Where,

r =radius of material