Fused filament modeling, also known as fused deposition modeling, is a manufacturing method that is in the family of material extrusion. The objects are created by depositing the molten material selectively in a determined way, layer by layer. Thermoplastic polymers are used in the form of materials that appear in the form of filaments. The process of fused deposition modeling is a commonly used process for manufacturing materials. It depicts the largest base of 3D printing technology.
How does the process of fused deposition modeling work?
The printer is first loaded with a thermoplastic filament. The filament of the material is injected into the extrusion head once the nozzle reaches the dedicated temperature. The filament then melts in the nozzle.
The head of the extrusion is attached to a system of three-axis that can move in the X, Y, and Z paths. The melted material of the FDM printing service is extruded in small and thin strands. It is then placed layer after layer in the designed location where it gets solidified after cooling. Sometimes cooling fans are also used to accelerate the process of cooling. It is attached to the head of the extrusion.
Several passes of FDM 3d printing service are needed to fill an area. Once a single layer is completed, the platform build slides down, a new part deposits. This entire process continues until the whole material is produced.
Process of warping
The method of warping is a common problem in 3d printing fdm service. The dimension increases when the material extruded cools during the process of solidification. As different parts of the material cool at different speeds, the dimension also changes differently. Differential cooling causes pressure on the buildup material that causes warping.
Depending on the choice of the designer, the rate of warping is controlled.
- Avoiding large flat areas that cause warping.
- Preventing thin protruding features.
- Removing the sharp corners can prevent warping.
- Using materials strategically can reduce the warping rate.
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