1results about How to "Exclude smoothly" patented technology

This invention relates to the field of 3D printing technology, and provides a venting insert, a mold, a mold system, and a method for 3D printing the venting insert. The venting insert includes: an insert body, which is at least made of permeable steel and is suitable for placement within the cavity of the mold. The insert body has a composite layer structure, comprising at least a first layer of permeable steel and a second layer of permeable steel. The first layer of permeable steel is laid on top of the second layer of permeable steel, and venting passages are formed at least in the first layer of permeable steel. The venting passages in the first layer of permeable steel provide unidirectional ventilation, facilitating the smooth removal of gas from the venting insert through the unidirectional holes and preventing defects on the product surface caused by the venting holes. Simultaneously, the venting passages in the first layer of permeable steel achieve multidirectional venting, allowing gas discharged through the unidirectional holes in the first layer of permeable steel to also be smoothly vented through the multidirectional holes in the second layer of permeable steel.