Irradiation Optical Build Control for Uniform 3D Object Height
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing build systems face challenges in forming consistent build objects due to variations in the build process conditions across different areas of the target object, particularly when the energy beam's irradiation area is set multiple times at one area versus fewer times at another, leading to inconsistencies in the build object's height and size.
Innovation Solution
The build system incorporates a change apparatus that adjusts the relative position of the energy beam with respect to the target object, allowing for differentiated build process conditions between areas with varying irradiation frequencies, and a control apparatus that manages the supply rate and heat transfer rate of build materials to maintain consistency across the build surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the energy beam irradiates the target object uniformly across all areas, then the build process is simple, but variations in build object height and size occur due to different irradiation frequencies at different areas
Solution Approach 1:
The patent applies local quality by differentiating build process conditions based on irradiation frequency. Areas with higher irradiation frequencies (where the irradiation area is set multiple times) receive different build parameters compared to areas with lower frequencies, ensuring consistent build object dimensions across the entire target object surface
2Manufacturing precision
If the build process conditions are differentiated across areas with different irradiation frequencies, then build object consistency improves, but system complexity increases
Solution Approach 1:
The patent implements feedback by monitoring the irradiation frequency at different areas of the target object and using this information to dynamically adjust build process conditions. The control system receives feedback on how many times the irradiation area is set at each location and modifies build parameters accordingly, achieving precision without excessive complexity
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 reduces variations in the height and size of the build object by ensuring consistent build conditions across the target object, improving the accuracy and quality of the three-dimensional structural objects formed.
Implementation Method 1
forming a build object by melting a powdery material with an energy beam and then solidifying the melted material again
Data Source
AI summary
A build system is provided with: a build apparatus that performs a build process for forming a build object by supplying build materials to an irradiation area of an energy beam from a supply system while irradiating a target object with the energy beam from an irradiation system; and a change apparatus that is configured to change a relative position between the energy beam and the target object, wherein the build system differentiates a condition of the build process that is performed at a first area of the target object and a condition of the build process that is performed at a second area of the target object.