Ion Source Fabrication via Direct Metal Laser Sintering
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Solution Overview
Problem
Conventional ion source manufacturing for mass spectrometers is labor-intensive and costly due to the need for precise manual alignment of machined electrodes and insulators under a microscope.
Innovation Solution
The method employs direct metal laser sintering to form aligned component portions of the ion source on a ceramic base plate, allowing for additive layering and secure coupling using welding or screws, thereby simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional manual alignment methods are used to assemble ion source components, then precise alignment can be achieved, but manufacturing cost and time increase significantly
Solution Approach 1:
The patent integrates multiple ion source components (electrodes, insulators, support structures) into a single monolithic structure fabricated by additive manufacturing. This merging eliminates the need for manual alignment of separate parts while maintaining precision, directly resolving the contradiction between alignment precision and manufacturing complexity
Solution Approach 2:
The additive manufacturing process preliminarily establishes the precise spatial relationships between all components during fabrication, rather than requiring alignment during assembly. The components are pre-positioned with exact precision through the layer-by-layer manufacturing process, eliminating subsequent alignment operations
2Adaptability or versatility
If multiple separate components are assembled manually, then component functionality can be optimized independently, but manufacturing time and labor costs increase
Solution Approach 1:
By combining multiple functional components into a single additively manufactured part, the patent maintains design flexibility for each functional element while dramatically improving manufacturing efficiency. The integrated structure allows all components to be produced simultaneously in one manufacturing operation rather than requiring sequential assembly of multiple parts
3Manufacturing precision
If precision machined parts are used for ion source components, then component accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces traditional mechanical precision machining processes with additive manufacturing technology. This substitution maintains or improves component accuracy through digital modeling and controlled layer deposition, while eliminating the high costs associated with precision machining, manual assembly, and quality inspection of multiple separate parts
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 manufacturing costs and complexity by enabling the simultaneous formation of aligned ion source components, improving the efficiency and cost-effectiveness of ion source fabrication for mass spectrometers.
Implementation Method 1
direct metal laser fusing of sequential layers
Implementation Method 2
The laser beam 302 is then used to melt and fuse each layer of metal powder 304 to the previous layer
Implementation Method 3
The unfused powder is then removed by suction 306 through a filter 308
Data Source
AI summary
A method of ion source fabrication for a mass spectrometer includes simultaneously forming aligned component portions of an ion source using direct metal laser fusing of sequential layers. The method can further include forming the component portions on a base plate made from a ceramic material by applying fused powder to the base plate to build the component portions thereon.