What do you mean by powder metallurgy?

What do you mean by powder metallurgy?

Powder metallurgy is a metal-forming process performed by heating compacted metal powders to just below their melting points.

What is EOS in manufacturing?

EOS is the global technology and quality leader for high-end solutions in the field of additive manufacturing (AM). Founded in 1989, they are a pioneer and world leader in the field of Direct Metal Laser sintering (DMLS) and provider of highly productive Additive Manufacturing Systems for plastic materials.

What is the process of powder metallurgy?

Powder metallurgy is the process of blending fine powdered materials, pressing them into a desired shape or form (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering).

What products are made from powder metallurgy?

Powder Metallurgy parts also find application in a range of other automotive systems:

  • Oil pumps – particularly gears.
  • Shock absorbers – piston rod guides, piston valves, end valves.
  • Anti-lock Braking Systems (ABS) – sensor rings.
  • Exhaust systems – flanges, oxygen sensor bosses.
  • Chassis components.

Why is powder metallurgy important?

The powder metallurgy process provides a host of advantages over competing metalworking technologies. These all add up to part-to-part uniformity for improved product quality, shape and material flexibility, application versatility, and cost effectiveness.

What EOS stand for?

EOS stands for “end of sale.” As its name suggests, it is a date after which you will no longer be able to purchase the product in question directly from a manufacturer like NetApp or EMC.

Why is powder metallurgy used?

Powder metallurgy is used to make unique materials with tailored properties, impossible to achieve from melting or forming with other methods. It enables combinations of materials that would otherwise be impossible to mix and processing of materials with very high melting points.

What are the disadvantages of powder metallurgy?

Limitations of powder metallurgy

  • Tooling cost is generally and can only be justified in mass production.
  • Raw material cost is very high.
  • Mechanical properties of the parts are of low quality as compared to cast or machined parts.
  • In some cases, density of different parts of final product can very due to uneven compression.

What are some of the disadvantages of powder metallurgy methods?

Disadvantages of Powder Metallurgy:

  • There are often size limitations to PM parts that can make certain designs impossible to produce.
  • Complex-shaped parts can also be challenging to make.
  • Parts are generally not as strong or as ductile as cast irons or forged parts.

How is powder metallurgy different from casting?

In powder metallurgy process all the metals are in powder form. In casting the metal is heated above its melting point and poured into a die and allowed to cool. The part is then machined for a accurate part. Both powder metallurgy and die casting entail filling a die or mold that forms your desired shape.

What is direct metal laser sintering (DMLS)?

DMLS (Direct Metal Laser Sintering) is an additive manufacturing method. It creates parts additively by sintering fine metal powder particles, to fuse them together locally.

What is selective laser sintering?

Selective laser sintering. Selective laser sintering ( SLS) is an additive manufacturing (AM) technique that uses a laser as the power source to sinter powdered material (typically nylon / polyamide ), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.

How does laser sintering work?

In the laser sintering process, the selected plastic powder is very thinly applied to a movable building platform. The powder is then precisely fused by a laser beam and as required along the structures previously defined by the CAD programme. The platform is lowered, and a new layer of powder is applied.

When was the first laser sintering patent filed?

^ Deckard, C., “Method and apparatus for producing parts by selective sintering”, U.S. Patent 4,863,538, filed October 17, 1986, published September 5, 1989. ^ Lou, Alex and Grosvenor, Carol ” Selective Laser Sintering, Birth of an Industry “, The University of Texas, December 07, 2012.