AMT

AMT Medical - Medical Applications

In AMT, we utilize our core technology of Metal Injection Molding (MIM) to serve the medical industry. MIM is a manufacturing solution for producing intricate parts. It excels at applications which require shape complexity and superior properties such as high strength, excellent magnetic permeability, good creep resistance, corrosion resistance and thermal conductivity.

Although the MIM technology is ideally used in high-volume production, AMT has adapted to serve in high mix, low volume production. With our focus on the medical industry, our solutions are ideal for application in the following medical categories:

Robotic Surgical Systems
Surgical Power Tools
MIS Endoscopy Devices
Life Science Analytical Systems
Hearing Aids

Find out more about MIM here.

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Step 1 – Mixing

Very fine metal or ceramic powder is mixed with a thermoplastic polymer (known as the binder) to form a homogeneous mixture of ingredients. The mixture or feedstock is made into granulated pellets and directly fed into the injection machine.

Step 2 – Injection

During injection, the feedstock is heated and injected into the cavity of the mold. This allows the desired shapes and geometries to be formed. The molded part is known as the green part.

Step 3 – Debinding

The polymeric binder is removed thermally via the debinding process. The green part is subjected to the debinding process at a high temperature while maintaining its relative size and shape. The brown part consists of a powder skeleton that is brittle and porous.

Step 4 – Sintering

The final stage of the PIM process is sintering. During sintering, the brown part is heated to below its melting temperature. As sintering progresses, density increases, pores are eliminated and the part shrinks to achieve a dense and near-net shape component.