ADDITIVE MANUFACTURING

Additive manufacturing technologies are best defined as techniques that add material, rather than remove it.
Additive manufacturing itself is a principle, not a single technique. Equipment built on this principle is called additive manufacturing technology.
Terms like freeform fabrication, rapid prototyping, additive process, rapid manufacturing, and layered manufacturing are all synonymous. Additive manufacturing is the most widely used of these terms.

The additive manufacturing technique has existed for more than 25 years.
Both industries and consumers have shown strong interest in it. Because of this, development of additive manufacturing machines has expanded—and it’s expected to grow even faster in the near future.
Before additive manufacturing, it was mostly impossible to produce small, complex parts with internal channels and mechanisms.

How Does Additive Manufacturing Work?

In the case of metal powders, additive manufacturing begins with a scan of an object or a completely digital rendering of a desired part.
You can test the 3D-rendered part in a digitally adjusted CAD program.
Next, send the 3D-rendered part to an additive manufacturing machine.
The machine builds metal layers selectively, following the 3D design. As each new layer forms on the previous one, the machine lowers its bed.
Finally, you get a finished part. Most of the time, the part only needs minor finishing to be ready. Plus, mechanical mechanisms in the finished part work right away.
Unused powder from the process is often recyclable—you can put it back into the machine for the next part. This cuts down on overall material costs.

Advantages of Additive Manufacturing

Make parts with complicated shapes and complex internal workings
Create parts that can’t be replicated any other way
Produce small batches of parts (no need for large-scale production)
Design lighter parts without losing strength (thanks to complex geometries)
Add intricate cooling channels directly into the part
Make custom products at an affordable cost
Reduce material waste
Enjoy true freedom in design

Applications of Additive Manufacturing

1. Medical Field

You can custom-make medical devices and implants to fit a patient’s unique body shape.
Additive manufacturing also lets you build implants that work with living tissue (biomedically compatible). This comes from two factors: the materials used, and the ability to create microstructures and meshes with connected pores. These pores help tissue grow better and improve circulation around the implant.
You can also make micro-devices with multiple complex shapes—they offer high versatility, precision, and speed.
Additive manufacturing’s fast production helps meet daily surgical needs. You can create batches based on specific surgical needs on demand, with little to no machining required.

2. Aerospace Industry

Aerospace companies can make strong, wear-resistant, and heat-resistant parts for critical systems. These parts cost less and weigh less than traditional alternatives.
Weight is a major concern in aerospace—lighter parts boost efficiency and improve the vehicle’s performance. But weight reduction isn’t the only goal: parts must also keep or improve their strength.
Additive manufacturing solves this with precision. It creates lightweight parts that retain full strength using complex cross-sections (like honeycomb cells). This makes it ideal for aerospace structural parts.

3. Automotive Industry

The automotive industry also benefits from additive manufacturing’s unique ability: making high-strength, low-weight parts to improve fuel efficiency.
Car makers have been exploring efficient tooling and component designs using additive manufacturing processes. These efforts have led to additive manufacturing parts in engines and structural components.
Common additive manufacturing components in cars include engine exhausts, drive shafts, gearbox parts, and braking systems.