3D Printing Method Using Electromagnetic Induction Heating
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Solution Overview
Problem
Current 3D printing methods lack the capability to form precise and varied three-dimensional shapes with desired properties efficiently.
Innovation Solution
A 3D printing method involving the application of an electromagnetic field to metal powder or slurry containing conductive metal, allowing for simultaneous or sequential shaping and heating, enabling precise and rapid formation of three-dimensional shapes through induction heating, with control over particle diameter, field intensity, and forming methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional 3D printing methods are used, then manufacturing process can be implemented, but manufacturing precision and formation speed are insufficient
Solution Approach 1:
The patent replaces conventional mechanical heating systems with electromagnetic induction heating. The electromagnetic field directly induces eddy currents in the conductive metal powder, generating heat internally without mechanical contact. This substitution enables rapid heating and precise temperature control, simultaneously improving manufacturing precision and formation speed.
Solution Approach 2:
The patent changes the physical state and temperature parameters of metal powder through controlled electromagnetic induction heating. By adjusting electromagnetic field parameters (frequency, power, duration), the metal powder transitions from solid to melted state and then to sintered state, achieving precise three-dimensional shape formation with high speed and accuracy.
2Manufacturing precision
If metal powder is heated to melt and sinter, then desired three-dimensional shape can be formed, but controlling shape maintenance during phase transition is difficult
Solution Approach 1:
The patent implements feedback control by monitoring the electromagnetic field parameters and adjusting them in real-time based on the phase transition state of metal powder. The system detects temperature and material state changes, and automatically adjusts heating power and duration to maintain precise shape control during melting and sintering processes.
Solution Approach 2:
The patent employs periodic electromagnetic field application with controlled duty cycles. The electromagnetic field is applied in periodic pulses, allowing controlled heating phases followed by cooling/stabilization phases. This periodic action enables precise control over phase transitions while maintaining shape accuracy and simplifying process control.
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 efficient and precise production of three-dimensional shapes with fine details, achieving rapid formation and maintaining the desired shape, improving upon existing methods by utilizing conductive magnetic metals and controlled electromagnetic fields.
Implementation Method 1
The conductive metal may be heated by induction heating in an electromagnetic field
Implementation Method 2
The conductive metal may be heated by induction heating in an electromagnetic field
Implementation Method 3
The conductive metal may be heated by induction heating in an electromagnetic field
Implementation Method 4
the metal powder can be melted in a state suitable for holding the three-dimensional shape and sintered in a state of maintaining the three-dimensional shape thus melted
Implementation Method 5
the metal powder can be melted in a state suitable for holding the three-dimensional shape and sintered in a state of maintaining the three-dimensional shape thus melted
Data Source
AI summary
The present application provides a 3D printing method. The present application can provide as a method for efficiently performing 3D printing, for example, a 3D printing method capable of more rapidly and efficiently producing a three-dimensional shape precisely realized up to a fine portion.