The formula to calculate the Percent Cold Work (%CW) is:
\[ \%CW = 100 \cdot \frac{A_0 - A_d}{A_0} \]
Where:
Percent Cold Work expresses the degree of plastic deformation.
Cross-sectional Area is the area before any load is applied.
Area after Deformation is the area after the material has been deformed.
Let's assume the following values:
Using the formula:
\[ \%CW = 100 \cdot \frac{0.005419 - 0.0005}{0.005419} \]
Evaluating:
\[ \%CW \approx 90.7732\% \]
The Percent Cold Work is approximately 90.7732%.
| Cross-sectional Area (A0) (square meters) | Area after Deformation (Ad) (square meters) | Percent Cold Work (%CW) |
|---|---|---|
| 0.004 | 0.0004 | 90.0000 |
| 0.004 | 0.0005 | 87.5000 |
| 0.004 | 0.0006 | 85.0000 |
| 0.005419 | 0.0004 | 92.6186 |
| 0.005419 | 0.0005 | 90.7732 |
| 0.005419 | 0.0006 | 88.9278 |
| 0.006 | 0.0004 | 93.3333 |
| 0.006 | 0.0005 | 91.6667 |
| 0.006 | 0.0006 | 90.0000 |