Rotating Binder Jet Print Head for Helical Additive Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing additive manufacturing systems are limited in size and efficiency due to the sequential operation of recoaters and binder jet print heads, which increases fabrication time and restricts the size of components that can be produced.
Innovation Solution
An additive manufacturing system with a rotating binder jet print head that allows simultaneous operation with a recoater assembly and particulate dispenser, supported by a modular actuator assembly, enabling continuous fabrication and the production of components of any size through a helical build process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a recoater and binder jet print head operate sequentially, then the equipment configuration is simplified, but the fabrication time increases and component size is limited
Solution Approach 1:
The system divides the binder jet print head into multiple independent jet modules that can operate simultaneously at different positions. Each jet module functions as an independent unit, allowing parallel deposition of binder material across multiple locations, thereby reducing overall fabrication time without requiring complex coordinated movement of a single print head.
Solution Approach 2:
The patent introduces a vertical stacking dimension by positioning multiple print heads at different heights (Z-axis layers) above the build platform. This multi-layer configuration allows simultaneous operation of recoater and multiple print heads without spatial interference, enabling parallel processing while maintaining equipment configuration simplicity.
2Device complexity
If a recoater and binder jet print head operate sequentially, then the system structure is simpler, but the component size that can be fabricated is restricted
Solution Approach 1:
Multiple jet modules are distributed across different radial positions and heights, creating a segmented printing system that can cover larger build volumes. Each segment operates independently, allowing the system to fabricate large components by coordinating multiple printing zones rather than requiring a single large-movement print head.
Solution Approach 2:
The system employs more print heads than strictly necessary for minimal functionality, creating an excessive configuration that expands the effective build volume. This redundancy of printing elements allows simultaneous fabrication across multiple regions, effectively increasing the maximum component size without proportionally increasing system complexity.
3Productivity
If multiple print heads are used to enable simultaneous operation with recoater, then fabrication speed increases, but the system complexity increases
Solution Approach 1:
Multiple jet modules are merged into a single integrated print head assembly that rotates as one unit. This combined structure shares common support mechanisms, rotation actuators, and control systems, reducing overall system complexity compared to having separate print heads. The merged design achieves high fabrication speed through parallel jet operation while minimizing the number of independent mechanical subsystems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the rapid fabrication of complex components of any size by allowing the binder jet print head and recoater to operate simultaneously, reducing fabrication time and enhancing manufacturing efficiency.
Implementation Method 1
The at least one print head is configured to dispense a binder through the at least one jet onto the particulate to consolidate at least a portion of the particulate
Implementation Method 2
The at least one actuator assembly is configured to rotate the at least one print head relative to the build platform about a rotation axis extending through a center of the build platform
Implementation Method 3
The at least one actuator assembly is configured to move the at least one print head in a build direction perpendicular to the build platform as the at least one print head is rotated
Data Source
AI summary
Methods and systems for fabricating a component by consolidating a particulate include a build platform configured to receive a particulate, a particulate dispenser configured to deposit the particulate on the build platform, and at least one print head including at least one jet. The at least one print head is configured to dispense a binder through the at least one jet onto the particulate to consolidate at least a portion of the particulate and form a component. The methods and systems also include at least one actuator assembly configured to rotate at least one of the at least one print head and the build platform about a rotation axis extending through the build platform and move at least one of the at least one print head and the build platform in a build direction perpendicular to the build platform as part of a helical build process for the component.