Additively manufactured composite part with voids for weight reduction

• Main Authors: CZIERTAS, ALPER, MIELEWSKI DEBORAH FRANCES, ARGENTO ANGELO, CISZEWSKI NORBERT, KIM WON-SEOK
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present disclosure provides "an additive manufactured composite part with voids for weight reduction". A composite part is manufactured by an additive process, the additive process comprising: positioning a fibrous layer; selectively depositing a matrix material onto portions of the fibrous layer in a predetermined pattern to form a matrix material layer; repeating these steps to produce a preform of the composite part; and applying heat and pressure to the preform to consolidate the fibrous layer and the matrix material layer. During the deposition of the matrix material, voids are created within at least one layer of the matrix material by intentionally not depositing the matrix material over a predetermined region of the fibrous layer configured to be within an outer boundary of the predetermined pattern of the matrix material. 本公开提供了"具有用于减重的空隙的增材制造的复合材料零件"。通过增材工艺制造复合材料零件，所述增材工艺包括：定位纤维层；将基质材料以预定图案选择性地沉积到所述纤维层的各部分上以形成基质材料层；重复这些步骤以生成所述复合材料零件的预成型件；以及向所述预成型件施加热和压力以固结所述纤维层和所述基质材料层。在所述基质材料的所述沉积期间，通过有意不在所述纤维层