| 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 |
| By assigning high thermal conductivity to high-strength,
highly pliant Si3N4 ceramics,
we have drastically improved the reliability of the semiconductor
module. In doing so, we have realized a new type of model structure
not possible with conventional aluminum materials and aluminum
nitride. |
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.
|
|
| Inquiries |
Hitachi Metals Precision, Ltd.
Tel.: +81-3-5765-3078
Inquiry Form |
|
