Melting Beam Source Alignment Using AM Test Articles
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Solution Overview
Problem
In additive manufacturing (AM) systems, it is challenging to discern whether defects in manufactured components are due to design flaws or equipment issues, and aligning the melting beam source accurately is crucial for producing high-quality components, but existing methods lack efficient calibration and alignment techniques.
Innovation Solution
A method is introduced to align the melting beam source in AM systems by forming test articles with different shapes on a build plate, measuring their vertical and horizontal scales and alignments, and adjusting the beam source to meet target specifications, ensuring precise alignment and calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional manufacturing methods are used to produce metal components, then material waste is high, but additive manufacturing reduces waste to minimal levels
Solution Approach 1:
The patent performs preliminary alignment calibration by forming test articles and measuring their dimensions before producing actual components. This preliminary measurement and adjustment process ensures the beam source is properly aligned, preventing defects that would compromise component quality while maintaining the waste-reduction benefits of additive manufacturing
2Loss of substance
If additive manufacturing is used to produce complex geometries, then material waste is minimized, but it becomes difficult to discern whether defects are caused by design flaws or equipment issues
Solution Approach 1:
The patent introduces test articles as intermediary objects that isolate the equipment variable from design variables. These test articles have known geometries and are printed in the same build orientation as actual components, serving as a reference to determine whether defects stem from equipment alignment issues or design flaws by comparing test article quality to expected standards
3Productivity
If the melting beam source alignment is not calibrated, then production efficiency is maintained, but component quality and precision deteriorate
Solution Approach 1:
The system performs preliminary alignment calibration using test articles before production runs. This initial measurement and adjustment phase ensures the beam source is properly aligned, preventing defects that would compromise component quality while maintaining the waste-reduction benefits of additive manufacturing
Solution Approach 2:
The patent implements a feedback mechanism where test articles are measured and their dimensions are used to adjust beam source alignment parameters. This closed-loop feedback ensures that alignment drift is detected and corrected, maintaining both component quality and production efficiency by preventing defective parts from being produced
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 automatic analysis and adjustment of the melting beam source alignment, improving the quality of AM components by distinguishing between design and equipment-related defects, and ensuring consistent production of complex geometries with minimal waste.
Implementation Method 1
additive manufacturing (AM) techniques... producing a component through the successive layering and sintering of material... a melting beam source for building a component on a build plate
Data Source
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AI summary
Embodiments of the disclosure relate to the aligning of a melting beam source in an additive manufacturing (AM) system (100). Methods of the disclosure may include forming a first test article (104) and a second test article (302) of different shapes on a build plate (118). The method further includes measuring a vertical scale, vertical alignment, horizontal scale, and an alignment of the melting beam source using the first and second test articles (104, 302). The method includes determining whether one of the vertical scale, the vertical alignment, the horizontal scale, or the horizontal alignment of the melting beam source is not within a corresponding tolerance of a target specification. If at least one of the vertical scale, the vertical alignment, the horizontal scale, or the horizontal alignment is within the corresponding tolerance, the method includes adjusting the melting beam source of the AM system (100) to align the melting beam source to yield the target specification.