20240033823. SYSTEM AND METHOD FOR HIGH THROUGHPUT ADDITIVE MANUFACTURING OF SINTERED PARTS WITH LOW ANISOTROPY simplified abstract (Palo Alto Reseach Center Incorporated)

SYSTEM AND METHOD FOR HIGH THROUGHPUT ADDITIVE MANUFACTURING OF SINTERED PARTS WITH LOW ANISOTROPY

Organization Name

Palo Alto Reseach Center Incorporated

Inventor(s)

Mahati Chintapalli of Mountain View CA (US)

Sean Garner of Redwood City CA (US)

Ashish Pattekar of Cupertino CA (US)

Anne Plochowietz of Mountain View CA (US)

SYSTEM AND METHOD FOR HIGH THROUGHPUT ADDITIVE MANUFACTURING OF SINTERED PARTS WITH LOW ANISOTROPY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240033823 titled 'SYSTEM AND METHOD FOR HIGH THROUGHPUT ADDITIVE MANUFACTURING OF SINTERED PARTS WITH LOW ANISOTROPY

Simplified Explanation

The patent application describes a 3D printing system and methods that use selective inhibition sintering (SIS) to pattern dense feedstock. The system involves selectively depositing a sintering selectivity agent (inhibitor or promoter) on a build layer based on the pattern boundary. When the layers are built-up and the part is sintered, the inhibited region remains unbound, defining the edge of the part. The material used contains powder embedded in a cohesive binder, which helps adhere the adjacent layers together. The build process includes forming sheets of dense feedstock embedded binder, followed by depositing ink to promote selective sintering onto the layer. After the build is complete, the process continues with binder removal, sintering, and finishing processes.

• A 3D printing system and methods are described.
• Selective inhibition sintering (SIS) is used to pattern dense feedstock.
• A sintering selectivity agent is selectively deposited on a build layer based on the pattern boundary.
• The inhibited region remains unbound, defining the edge of the part.
• The material used contains powder embedded in a cohesive binder.
• The build process involves forming sheets of dense feedstock embedded binder.
• Ink is deposited to promote selective sintering onto the layer.
• The process continues with binder removal, sintering, and finishing processes.

Potential Applications

• Manufacturing of complex-shaped parts with defined edges.
• Prototyping and rapid production of customized parts.
• Production of intricate structures with high precision.

Problems Solved

• Overcoming limitations of traditional 3D printing methods in achieving precise edge definition.
• Enabling the production of parts with complex geometries that require selective sintering.

Benefits

• Improved accuracy and precision in 3D printing.
• Increased design flexibility and complexity.
• Reduction in post-processing requirements.
• Cost-effective production of customized parts.

Original Abstract Submitted

a 3d printing system and methods to selectively pattern dense feedstock based on selective inhibition sintering (sis). a sintering selectivity agent (inhibitor or promoter) is selectively deposited on a build layer according to the pattern boundary. when the layers are built-up and the part is sintered, the inhibited region remains unbound, thus defining the edge of the part. the material contain powder embedded in cohesive binder that make the adjacent layer adhere together. the build process involves forming the sheets of dense feedstock embedded binder, followed by depositing ink to promote selective sintering onto the layer. once the build is complete, the process continues with the binder removal, sintering and finishing processes.