Additive Manufacturing Gas and Beam Control for Stronger 3D Parts
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Solution Overview
Problem
Current additive manufacturing systems face difficulties in adjusting material properties, such as gas composition and thermal energy intensity, which limits the production of objects with desirable properties like increased strength and reduced porosity.
Innovation Solution
A system and method that include a control apparatus to adjust the properties of the gas surrounding the material and the energized beam by applying an electrical potential and generating a magnetic field, allowing for precise control over the melting process and reduction of oxides, thereby enhancing the properties of the manufactured object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the gas type is changed to improve object properties, then the quality of the manufactured object improves, but the process time extends significantly
Solution Approach 1:
The patent applies dynamics by making the gas environment adjustable during the manufacturing process. Instead of using a fixed gas type, the system dynamically changes gas parameters (type, pressure, flow rate) during different stages of additive manufacturing to optimize both object quality and process efficiency, eliminating the need for extended downtime for gas changes.
Solution Approach 2:
The patent implements parameter changes by controlling multiple gas parameters simultaneously (composition, pressure, temperature) rather than changing the entire gas system. This allows fine-tuning of the manufacturing environment to achieve desired object properties while maintaining process continuity and reducing time losses.
2Strength
If the thermal energy intensity is increased to improve material fusion, then the bonding quality improves, but the risk of material defects increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting thermal energy parameters (intensity, duration, distribution) based on real-time monitoring of the manufacturing process. This allows optimization of heating conditions to achieve complete material fusion while avoiding excessive temperatures that cause defects, adapting parameters to specific material types and geometric features.
Solution Approach 2:
The patent implements feedback mechanisms by monitoring temperature, material state, and process conditions in real-time, then using this information to adjust thermal energy application. This closed-loop control ensures optimal bonding strength is achieved while preventing harmful effects from excessive or insufficient heating.
3Manufacturing precision
If the additive manufacturing process is made more controllable to improve object properties, then the quality of manufactured objects improves, but the system complexity increases
Solution Approach 1:
The patent applies universality by designing a control system that handles multiple functions through integrated components. The same control apparatus manages gas parameters, thermal energy application, and process monitoring, reducing the need for separate specialized systems while maintaining high precision control over all manufacturing parameters.
Solution Approach 2:
The patent uses intermediary elements such as sensors, actuators, and control algorithms that mediate between the operator/input and the physical manufacturing processes. These intermediaries enable precise control of complex parameters (gas flow, temperature, energy distribution) through standardized interfaces, managing system complexity while maintaining high manufacturing precision.
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
Enables the production of three-dimensional objects with improved strength and reduced porosity by altering the properties of the gas and the energized beam, allowing for more precise control over the additive manufacturing process.
Implementation Method 1
A system and method for additive manufacturing a three-dimensional object layer-by-layer include a control apparatus that adjusts the properties of a gas surrounding the material and through which an energized beam extends
Implementation Method 2
an energy source configured to selectively direct an energized beam at the material to form a melted pool of the material to fuse a new layer of the material to a previously formed layer
Implementation Method 3
allowing the melted material to solidify to bond/fuse the material to the previously formed layer(s)
Implementation Method 4
a depositor configured to deposit material layer-by-layer on the bed surface or a previously deposited layer of the object to form the object
Data Source
AI summary
A method is disclosed for additive manufacturing a three-dimensional object layer-by-layer including depositing a layer of material on a bed surface or a previously deposited layer of the object to form the object layer-by-layer; providing energy to the material after each layer is deposited with the energy being provided by an energy source that forms an energized beam directed at the material; altering a property of a gas surrounding the material and through which the energized beam extends to alter a property of the object constructed from the material; melting the material with the energized beam to form a melted pool of liquefied material; and allowing the material to solidify to bond the material to a previous layer of material of the object.