3D Powder Lamination Base Layer Density for Height Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional three-dimensional fabrication methods face issues with the base layer not being sufficiently distributed, leading to a lower powder filling rate and compression of the base layer, which results in decreased height and quality of the fabricated object.
Innovation Solution
The method involves forming a base layer with a higher powder filling rate than the powder layer, preventing compression and maintaining the quality of the fabricated object by ensuring adequate distribution of the base layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the base layer is formed with conventional powder filling methods, then the fabrication process can proceed, but the base layer is not sufficiently distributed and has low powder filling rate, leading to compression and quality degradation
Solution Approach 1:
The patent applies preliminary action by forming a base layer with high powder filling rate before subsequent fabrication layers are deposited. This pre-established dense base layer prevents compression issues during the fabrication process, ensuring the base layer maintains its structural integrity and distribution uniformity throughout the entire fabrication sequence.
2Manufacturing precision
If the base layer powder filling rate is low, then the fabrication process is simpler, but the base layer gets compressed resulting in decreased height and quality of the fabricated object
Solution Approach 1:
The patent applies parameter changes by specifically adjusting the powder filling rate parameter for the base layer to be higher than subsequent fabrication layers. This parameter differentiation ensures the base layer achieves sufficient density and compression resistance while maintaining fabrication object height accuracy, without requiring complex additional equipment or processes.
3Reliability
If the base layer is formed with high powder filling rate, then compression is prevented and quality is maintained, but the fabrication process requires differentiated handling of base layer versus powder layer
Solution Approach 1:
The patent applies local quality by implementing different powder filling rates for different regions of the fabrication process - specifically, a higher powder filling rate for the base layer and a lower powder filling rate for subsequent fabrication layers. This localized differentiation ensures the base layer achieves the necessary structural stability while keeping the overall device complexity manageable through straightforward process control.
Data Source
AI summary
A lamination fabricating method includes forming a powder layer including a powder for three-dimensional fabrication, applying a fabrication liquid to the powder layer, repeating the forming of the powder layer and the forming the powder layer to form a fabricated object, and forming a base layer prior to the forming of the powder layer. A powder filling rate of the base layer is higher than a powder filling rate of the powder layer.