All You Need To Know About Rapid Prototyping

March 23, 2020 RAWAT 0 Comments


Prototyping is the art of making samples and models to test a product before release. It usually involves schematics, design, coding if needed, and working. It is usually done to test a product and analyze it with a critic’s eye and then to make further changes as needed to provide people with the best product.

 Rapid Prototyping is a process of extremely quick fabrication i.e. putting up the physical structure of a model. It usually uses Computer-Aided Design i.e. CAD and further done by the addition of parts or 3D printing. The structure produced by it can either be too close to the real product or be too different from that of the product to be made.


Working

There are a lot many things involved in rapid prototypes. They are not just the creation of CAD or 3D printers. It involves several layers and processes, including casting, moulding, shaping, matching, etc. It involves 2 main techniques:

  • Subtracting: A big block of material is carved in by various tools to reach the desired shape or output.
  • Compression: Shapes are made using different moulds and then are compressed together to join and form a particular shape.
Types

Rapid prototyping is not an easy task but to ease its working, it has several types, and the best suitable can be used by the assembler or the person making the prototype. The processes include:
  • Vat Photo polymerization: This technique is considered to be a very fast and pocket-friendly method of 3D printing. The photosensitive liquid layer solidifies as the UV light passes through it.
  • Selective Layer sintering: Used for metals and plastic; it involves a sintering powder that builds a bed layer one at a time. It usually gives a rough end product than a smooth one.
  • Material Jetting: It involves a thermoplastic filament that is melted inside the printing space as per the design shown on the computer. It is highly inexpensive and easy to use.
  • Powder bed fusion: Done by melting fine metal powder into a bed layer by layer by using an electron beam or a laser. It is used to make highly complex parts of an automobile, military, etc.
  • Sheet Lamination: This is done by using a series of laminated sheets, usually one over another that is cut by using a laser as per the designs of CAD. The sheets are bonded until the cutting is over.
Application

Rapid Prototyping comes with a lot of aids to humans. It helps in easy understanding of the image in the 3D view. It aids imagination, development, fault detection, and correction in developing and manufacturing new products especially mass production. It is a way that has not just helped automobiles but is now moving towards other industries like medical for injection moulds, ultrasound sensors, etc. and aerospace for the various parts of the jets and airplanes. It has now become a popular method that is not only embraced by people but has shown significant popularity in the world of manufacturing.

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