Abstract
A direct metal rapid prototyping process based on the plasma arc welding was presented. The effects of 6 important processing parameters, such as pulse current, wire-feeding speed etc, on the ratio of width to height of the deposited track cross-section (λ) was investigated by Taguchi method and temperature contrast experiments. The results show that pulse current, duty circle, wire-feeding speed and scanning speed exert significant influences on λ. The plasma gas flow-rate has a great effect on λ, while pulse frequency has no obvious effects on λ. The tensile strength and density of Ti-6Al-4V parts fabricated with the optimized parameters was tested. The results show their test data is similar to that of the parts fabricated with laser deposited process.
| Original language | English |
|---|---|
| Pages (from-to) | 134-138 |
| Number of pages | 5 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 41 |
| Issue number | 1 |
| State | Published - Jan 2012 |
Keywords
- Plasma arc welding
- Processing parameters
- Rapid prototyping
- Taguchi method
- Ti-6Al-4V