Build Material Profiles for Consistent 3D Print Properties
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Solution Overview
Problem
Additive manufacturing systems face challenges in achieving desired properties in three-dimensional objects due to variations in build materials and external conditions, requiring careful calibration and potential recalibration to ensure consistent output.
Innovation Solution
The use of a coalescing agent and a coalescence modifier agent, selectively delivered to build material layers, allows for controlled solidification and modification of material properties, enabling the generation of three-dimensional objects with specific properties by adjusting energy application and agent distribution patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If build material properties and external conditions are varied, then manufacturing flexibility increases, but achieving consistent desired properties in three-dimensional objects becomes difficult
Solution Approach 1:
The patent applies parameter changes by systematically varying build material properties (composition, particle size, morphology) and processing parameters (energy density, layer thickness, build orientation) to achieve desired object properties. The methodology involves creating design space models that map parameter variations to outcome variations, enabling predictable control over object properties despite material and condition variations.
Solution Approach 2:
The patent implements feedback through iterative calibration processes where actual build results are measured and compared to desired properties. Build profiles are updated based on this feedback, incorporating lessons learned from previous builds to improve consistency. The system uses feedback loops to adjust parameters between builds, ensuring that variations in materials and external conditions do not compromise object property consistency.
2Manufacturing precision
If careful calibration is performed to achieve desired properties, then manufacturing precision improves, but process complexity and time increase
Solution Approach 1:
The patent applies preliminary action through the creation of build profiles that pre-define optimal parameter settings for specific build materials and object types. These profiles are established through preliminary calibration studies and stored for reuse, eliminating the need to perform full calibration for every new build. The methodology includes pre-characterizing materials and pre-determining parameter ranges that have been validated to produce desired properties.
Solution Approach 2:
The patent implements universality by developing a standardized calibration framework and build profile structure that can be applied across different additive manufacturing systems and material types. The methodology creates universal relationships between parameters and outcomes that transcend specific equipment or material variations, allowing a single calibration approach to serve multiple build scenarios and reducing overall process complexity.
3Reliability
If recalibration is performed to maintain consistent output, then reliability improves, but loss of time and productivity decrease
Solution Approach 1:
The patent applies preliminary action by establishing robust build profiles through upfront calibration that are designed to remain valid across multiple builds. The methodology includes determining parameter ranges rather than single-point values, creating profiles with built-in tolerance for normal variations. This preliminary work reduces the frequency and extent of recalibration needed, maintaining reliability while preserving productivity.
Solution Approach 2:
The patent implements self-service through automated parameter adjustment capabilities where the system can automatically compensate for minor variations in materials and conditions using pre-established relationships. The build profile system automatically selects appropriate parameters based on material characteristics, reducing the need for manual recalibration and maintaining consistent output without interrupting the build workflow.
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 approach enables the production of three-dimensional objects with precise control over material properties such as density, strength, and surface finish, reducing defects like curl and warping, and allowing for the reuse of uncoalesced build material, thereby improving the stability and accuracy of the additive manufacturing process.
Implementation Method 1
allows for controlled solidification and modification of material properties
Implementation Method 2
enables the generation of three-dimensional objects with specific properties by adjusting energy application and agent distribution patterns
Data Source
AI summary
Examples are described that generate control data for production of a three-dimensional object. Build material profile data is accessed for an indicated build material. The build material profile data for a given build material defines one or more parameter values that are dependent on the properties of the given build material and that are configured to generate a three-dimensional object with predefined build properties.