Additive Manufacturing and CLIP Process Quiz

The act of building objects layer by layer, like stacking slices of bread.

Making parts at the point of need, instead of relying on centralized factories.

The specific instructions and data used to guide an additive manufacturing machine.

The process of breaking down a 3D design into a series of thin cross-sections.

Thin layers of material, typically ranging from 0.03 to 0.5 millimeters, are used to build a 3D object during additive manufacturing.

Software designed to take a CAD file and generate instructions for an additive manufacturing machine to create a part.

The path the manufacturing machine follows to create each slice of the 3D object.

The physical process of depositing material layer by layer to create a three-dimensional object. Different methods are used, depending on the material and desired features.

A 3D printing method where an entire layer is cured at once using digital light projection, unlike layer-by-layer methods like SLS or SLA.

A digital light processing (DLP) device used in CLIP, consisting of an array of micromirrors that can be activated to direct light onto the resin, selectively curing it.

A three-dimensional pixel, the smallest unit of material that can be created in a 3D printing process.

The process of cleaning and curing the parts produced using CLIP, essential for achieving desired strength and stability.

A material with a structure designed at the microscopic level to achieve specific properties, like stiffness or strength.

A type of metamaterial with similar mechanical properties to foam, but easier to clean, developed by Carbon3D for use in CLIP.

The ability to customize the stiffness of a material, like a shoe insole, at different locations to provide optimal support and comfort.

A digitized footwear component creation process eliminating the need for traditional prototyping and molding, developed by Adidas and Carbon3D using CLIP.

A 3D printing method where droplets of material are ejected through tiny nozzles like an inkjet printer, creating layers on a build platform.

A support material used in Direct Ink Writing (DIW) that dissolves in water or a similar solvent, allowing for easy removal after the print is complete.

A type of 3D printing where very small particles are suspended in a liquid and then deposited layer by layer.

The process of spreading a powder layer evenly on a build platform in powder bed 3D printing.

The ability of a powder to spread into thin layers without clumping or sticking together.

The strength of a powder layer before it's fully sintered or fused together.

The process of heating up a powder bed to fuse the particles together, creating a solid object.

The use of powder as the building material in 3D printing, where the powder is spread layer by layer in a bed or chamber.

A manufacturing method that uses a 3D model to create a mold for casting.

A specialized type of cooling channel designed to be integrated directly into the mold's geometry, offering more uniform temperature distribution.

The process of melting and removing wax patterns from a ceramic mold before pouring molten metal.

Assembling individual patterns or models into a single structure for investment casting.

A container used to hold the investment material during the casting process.

The process of transferring molten metal into a mold to create a final product.

The material used to create a mold for investment casting, typically ceramic-based.

The step where the final metal piece is cooled after pouring and solidifying.

Powder particles in additive manufacturing tend to get slightly larger with each reuse due to the separation of smaller particles during the powder handling process.

The high temperatures of the melt pool can cause particles to fuse together, which can be problematic for additive manufacturing. Sieving is used to remove these fused particles.

Preheating the build chamber is a common practice in additive manufacturing to improve process robustness and reduce laser power requirements. However, preheating can also affect the powder's microstructure and chemistry.

The first reuse of powder in additive manufacturing typically doesn't significantly impact the mechanical properties of the final product. However, repeated reuse can lead to a decline in strength, especially in materials like nylon.

Blending virgin powder with reclaimed powder is a common practice in additive manufacturing to mitigate the effects of powder reuse and maintain consistent material properties.

Some materials, particularly those sensitive to oxygen and moisture, like magnesium alloys, may experience a degradation in mechanical properties due to exposure during reclamation and sieving.

Additive manufacturing processes often generate thermal stresses and shrinkage during production, resulting in warpage of the part.

For additive manufacturing, symmetric tolerances (equal allowances for variation above and below the desired size) are preferred because they are easier to apply during the layer-by-layer building process.

Dimensional tolerances within the plane of the build (the flat surface the part is built on) can be larger than those perpendicular to it (in the thickness direction).

The achievable tolerances and surface finish in additive manufacturing depend on factors like the specific machine, the material used, the size of the part, and its orientation during the build process.

Stereolithography is an additive manufacturing process that uses a laser to solidify liquid resin, creating a high-resolution and detailed object.

Selective laser sintering (SLS) uses a laser to fuse powdered materials layer by layer, creating a strong and durable object.

Typical tolerances for stereolithography (SLA) are ±0.05 to 0.1 mm or ±0.001 mm/mm for well-designed parts.

Typical tolerances for selective laser sintering (SLS) of polymers are ±0.4 mm or 0.1 mm/mm, whichever is greater.