Previously, we conducted an air venting experiment using our SG-WIND.
This time, we conducted an experiment using a gas venting insert created with our 3D printer.
With SG-WIND, a nested structure needs to be processed before it can be used in a mold, but with a 3D printer, a nested structure can be formed and used as-is in a mold.
The 3D printer can be used as-is for molds after being formed as a nested structure.
The 3D printer uses a multi-porous structure called a porous structure for gas venting.
The gas venting passage is not straight, so the exhaust resistance is higher than that of SG-WIND, but it can be used for molding wide or curved surfaces.
The experimental outline is the same as the previous experiment, assuming that the mold is built into the mold and factory air (~0.5 MPa) is connected.
Gas venting nests are nested so that they can be used directly in the mold.
As before, the entire container was placed in a tank of water to visualize the air escaping from the venting container.
Air removal experiment (0.2MPa)
The video shows air pressure at 0.2 MPa, but we could confirm that air was passing smoothly.
In normal injection molding, the resin pressure is at least 10 MPa, so there is no problem with outgassing performance. Porous structure changes the way pores are created depending on the molding conditions.
We will propose the best molding conditions according to the shape and size of the nest.
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