What is additive manufacturing PPT?

What is additive manufacturing PPT?

What is Additive Manufacturing?  The process of joining materials to make objects from three- dimensional (3D) model data, usually layer by layer  Commonly known as “3D printing”  Manufacturing components with virtually no geometric limitations or tools.

How does metal deposition work?

Laser metal deposition (LMD) is an additive manufacturing process in which a laser beam forms a melt pool on a metallic substrate, into which powder is fed. The powder melts to form a deposit that is fusion-bonded to the substrate. The required geometry is built up in this way, layer by layer.

What kinds of materials can be used in the DLD process?

DLD is based on layer-by-layer deposition and melting of powder by laser beam from using a sliced 3D computer-aided design (CAD) file. The materials used are powders based on Fe, Ni, and Ti.

What is direct metal deposition?

Direct metal deposition (DMD) is a powder jet additive-manufacturing (AM) technique that can be used for low-cost build, repair, hardfacing and reconfiguration of forging dies. The technique has also been used to add features such as flanges and bosses to forged parts to improve their functionality.

What are STL files used for?

STL is a file format commonly used for 3D printing and computer-aided design (CAD). The name STL is an acronym that stands for stereolithography — a popular 3D printing technology. You might also hear it referred to as Standard Triangle Language or Standard Tessellation Language.

What are the 8 steps in additive manufacturing?

Additive manufacturing, often referred to as 3D printing, is a computer-controlled process for creating 3D objects.
…
The Additive Manufacturing Process

1. Step 1: Using CAD Software to Design a Model.
2. Step 2: Pre-Processing.
3. Step 3: Printing.
4. Step 4: Post-processing.

What is the benefit of DED?

Candidates who successfully complete the DEd course come out as skilled and qualified elementary school teachers. Such teachers can find employment opportunities at any institute imparting elementary education such as government schools, private schools, private tuition centres, daycare centres, and so on.

What is direct energy deposition used for?

Direct Energy Deposition (DED) is a series of several similar metal 3D printing technologies that creates parts by melting and fusing material as it is deposited. While it can be used to manufacture new parts, DED is typically used for repairing and rebuilding damaged components.

How does pulsed laser deposition work?

Pulsed laser deposition (PLD)

is a physical vapor deposition technique where a high power pulsed laser beam is focused to strike a target of the desired composition. Material is then vaporized and deposited as a thin film on a substrate facing the target.

What is DMLS process?

DMLS is a 3D printing process, which uses a computer-controlled, high-power laser beam to melt and fuse layers of metallic powder together. Direct metal laser sintering (DMLS) is an industrial 3D printing process that builds fully functional – rapid metal prototypes and production parts in 7 days or less.

What is the full name of STL?

Also referred to as “Standard Triangle Language” and “Standard Tessellation Language.” The STL (STereoLithography) file format is an openly documented format for describing the surface of an object as a triangular mesh, that is, as a representation of a 3-dimensional surface in triangular facets.

What is STL format?

What are the 7 categories of additive manufacturing?

Understanding the Seven Types of Additive Manufacturing

• Binder jetting.
• Directed Energy Deposition.
• Powder Bed Fusion.
• Sheet Lamination.
• Material Extrusion.
• Material Jetting.
• Vat Photo Polymerization.

What are the benefits of additive manufacturing?

Top Ten Advantages of Additive Manufacturing

• The Cost Of Entry Continues to Fall.
• You’ll Save on Material Waste and Energy.
• Prototyping Costs Much Less.
• Small Production Runs Often Prove Faster and Less Expensive.
• You Don’t Need as Much On-Hand Inventory.
• It’s Easier to Recreate and Optimize Legacy Parts.

Where is direct energy deposition used?

Directed Energy Deposition can be used to fabricate parts, but is generally used for repair or to add material to existing components. Generally-speaking, the applications for DED fall into three categories; near-net-shape parts, feature additions, and repair.

When was direct energy deposition invented?

Directed energy deposition was developed by Sandia National Laboratories in 1995 under the name of LENS (Laser Engineering Net Shape) and then was commercialized by Optomec Design Company.

Why are DED processes particularly suitable for repair?

The key benefits of DED over other techniques are that it 1) creates a stronger bond and 2) inputs less heat to the part being repaired. The benefits of the stronger bond are obvious. The lower heat input means less distortion of the part during the repair process. These two benefits make the DED process unique.

What is CVD technique?

CVD is a technique where a solid material is deposited from a vapor by some chemical reaction occurring on or in the vicinity of a normally heated substrate surface (Fig. 4). CVD is an example of vapor-solid reaction. The process is often used in the semiconductor industry to produce thin films.

What are some examples of deposition?

The most typical example of deposition would be frost. Frost is the deposition of water vapour from humid air or air containing water vapour on to a solid surface. Solid frost is formed when a surface, for example a leaf, is at a temperature lower than the freezing point of water and the surrounding air is humid.

What are the advantages of DMLS?

DMLS Printing Advantages and Disadvantages
DMLS is great for producing unique shapes and designs with stable mechanical and material properties. There is relatively wide material availability and the machines are repeatable once a part is printed successfully.

Which are two types of DMLS?

The DMLS process can be performed by two different methods, powder deposition and powder bed, which differ in the way each layer of powder is applied. In the powder deposition method, the metal powder is contained in a hopper that melts the powder and deposits a thin layer onto the build platform.

What is STL process?

What is STL material?

STL is a file format native to the stereolithography CAD software created by 3D Systems. STL has several backronyms such as “Standard Triangle Language” and “Standard Tessellation Language”.

What are the limitations of additive manufacturing?

5 disadvantages of additive manufacturing

• Cost of entry. With additive manufacturing, the cost of entry is still prohibitive to many organisations and, in particular, smaller businesses.
• Production costs. Production costs are high.
• Additional materials.
• It’s slow.
• Post-processing.

What are the types of additive manufacturing?

About Additive Manufacturing

• VAT Photopolymerisation. Vat polymerisation uses a vat of liquid photopolymer resin, out of which the model is constructed layer by layer.
• Material Jetting.
• Binder Jetting.
• Material Extrusion.
• Powder Bed Fusion.
• Sheet Lamination.
• Directed Energy Deposition.