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Computers & Semiconductor IC Products
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.
(2) Features of Sintered Objects
With a relative density of 97%, the structure of the sintered object is sufficiently advanced.
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
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