3D Printed Magnetic Objects via Layered Extrusion and Field Alignment
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Solution Overview
Problem
Current additive manufacturing techniques lack the capability to effectively integrate magnetic materials into three-dimensional objects, limiting the creation of objects with specific magnetic properties and functionalities.
Innovation Solution
A 3D printing process that involves depositing layers of a first polymeric material and a second polymeric material containing magnetic particles, with a magnetizing device used to align the magnetic particles, allowing for the creation of objects with controlled magnetic properties by applying a magnetic field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If magnetic material is integrated into additive manufacturing, then objects with specific magnetic properties and functionalities can be created, but the process complexity increases due to the need for specialized equipment and multi-material deposition
Solution Approach 1:
The patent combines multiple extrusion components with different material capabilities into a single additive manufacturing system. The first extrusion component deposits non-magnetic polymeric material while the second extrusion component deposits magnetic polymeric material containing magnetic particles, integrating magnetic functionality directly into the manufacturing process rather than as a separate post-processing step.
Solution Approach 2:
The patent uses composite polymeric material that includes magnetic particles dispersed within the polymer matrix. This composite material allows the object to exhibit both the mechanical properties of the polymer and the magnetic properties of the embedded particles, enabling functional integration without requiring separate magnetic components.
2Manufacturing precision
If magnetic particles are aligned within polymeric material layers, then controlled magnetic properties are achieved, but additional equipment and process steps are required
Solution Approach 1:
The patent incorporates magnetic particles into the polymeric material before deposition, and aligns them during the deposition process itself through the application of magnetic fields. This preliminary alignment action occurs while the material is being deposited and is still pliable, allowing for precise control of magnetic properties before the material fully cures and sets in its final configuration.
Solution Approach 2:
The patent uses a magnetic field as an intermediary to align the magnetic particles within the polymeric material. The magnetic field acts as a mediator that organizes the magnetic particles into desired patterns and orientations without requiring mechanical manipulation, enabling precise magnetic property control through field application rather than physical handling.
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 formation of objects with defined attractive or repulsive forces, enhancing their magnetic properties and functionalities, such as specific polarity arrangements within the object layers.
Implementation Method 1
a magnetizing device used to align the magnetic particles, allowing for the creation of objects with controlled magnetic properties by applying a magnetic field
Data Source
AI summary
Implementations described herein are directed to forming objects including one or more layers of a polymeric material that include a magnetic material. The objects can be produced by forming one or more first layers that include a first polymeric material. The one or more first layers can be free of a magnetic material. Additionally, the object can be produced by forming one or more second layers that include a second polymeric material having a magnetic material. For example, the one or more second layers can include a polymeric material embedded with magnetic particles. The one or more first layers and the one or more second layers can be formed by extruding the first polymeric material and the second polymeric material onto a substrate according to a pattern. A magnetizing device can be used to magnetize the magnetic material included in the one or more second layers.