Abstract
Residual stress in an injection molded product is originated from thermal induced residual stress and flow induced residual stress. It was verified that the residual stress near surface region is compressive stress through chemical cracking test with annealed injection molded specimen. The compressive residual stress acted as an affirmative part that giving resistance to chemical crack formation at the surface of the specimen. The compressive residual stress formed in the surface region of an injection molded product can also increase the resistance of crack that formed by an impact.
| Original language | English |
|---|---|
| Pages (from-to) | 827-829 |
| Number of pages | 3 |
| Journal | Polymer (Korea) |
| Volume | 39 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2015 |
Keywords
- Annealing
- Chemical cracking
- Compressive residual stress
- Injection molding
- Residual stress