MIM (Metal-injection Molding)
TITANIUM SINTERED
PRODUCTS
Overview
Titanium (Ti) is a high-density strength, highly pliant, highly corrosive-resistant material, which in recent years is seeing ever-growing demand. On the downside, titanium is a difficult material to process and also an expensive one. We have applied the fruits of our 10-year track record in metal injection molding (MIM) technology in the development of MIM Ti sintering products.
1. MIM Process
Figure 1: MIM Process Flowchart
2. Features of MIM Titanium Sintered Parts
(1) Configurations
In forging, it becomes possible to manufacture intricate, near-net shaped sintered products.
Figure 2: Example of MIM Ti Sintered Parts
(2) Features of Sintered Objects
With a relative density of 97%, the structure of the sintered object is sufficiently advanced.
Figure 3: Microstructure
The mechanical features rival JIS 3-type welding materials (Chart 1). Furthermore, ruptures seen in stretch tests show ductile fatigue fractures that exhibit sufficient tractility.
| Chart1: P Properties of MIM Ti Sintered Parts | ||
|---|---|---|
| MIM Ti Sintered Parts | JIS3-type Standard | |
| Relative density (%) | 97 | 100 |
| Elasticity (NPa) | 600±20 | 480～620 |
| Growth (%) | 21±2 | ≧18 |
| 0.2% durability (NPa) | 310±39 | ≧345 |
| Hardness (Hmv) | 240±29 | － |
Figure 4: Fracture Surface
Now, with the Titanium alloy MIM, it has become possible to respond to the demand for high-strength products that have a degree of hardness.
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