Abstract
Intrinsic difficulty of metal forming in magnesium alloys must be overcome by new processing. Superplatic injection forming is one of the most promising methodologies. Stroke velocity controlled forming system was developed to evaluate the formability of AZ91 at 573 K both in upsetting and backward-extrusion modes. Uniaxial constitutive equation was used together with consideration of grain growth to predict the stress-strain rate and the stress-stroke relations in upsetting experiments. Double flange, thin-walled cup can be superplastically formed from a cylindrical billet.
| Original language | English |
|---|---|
| Pages (from-to) | 35-40 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 357-359 |
| DOIs | |
| Publication status | Published - 2001 |
| Externally published | Yes |
| Event | Superplasticity in Advanced Materials (ICSAM-2000) - Orlando, FL, United States Duration: 2000 Aug 1 → 2000 Aug 4 |
Keywords
- AZ91
- Computer control
- Die-set selection
- Injection forming
- Magnesium
- Near-net shaping
- Stoke control
- Superplasticity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering