3D Printing Layer Temperature Control Using Segmented Diode Heating
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Solution Overview
Problem
Existing additive manufacturing apparatuses for three-dimensional objects lack the capability for individually adjustable and homogeneous temperature control of construction material layers, which limits the reduction of thermal tensions and affects the structural properties of the objects.
Innovation Solution
The apparatus employs a temperature control device with temperature control diodes that generate electromagnetic beams for localized temperature control, allowing for adjustable heating and cooling of construction material layers, and a control system to manage beam properties and profiles, enabling precise temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a static temperature control device is used, then the device complexity is reduced, but the temperature control precision and individual adjustability deteriorate
Solution Approach 1:
The temperature control device is segmented into multiple independently controllable heating zones, each with its own heating element and control parameters. This allows different regions of the construction material layer to be controlled at different temperatures, achieving homogeneous temperature control across the entire layer while maintaining manageable device complexity through modular design
Solution Approach 2:
The temperature control device transitions from static to dynamic control by enabling real-time adjustment of temperature parameters for each heating zone during the additive manufacturing process. This dynamic capability allows the system to adapt temperature settings based on material properties, layer position, and process requirements, significantly improving temperature control precision without requiring complete redesign of the device architecture
2Object-affected harmful factors
If homogeneous temperature control is implemented across the construction material layer, then thermal tensions are reduced, but the device complexity increases
Solution Approach 1:
The temperature control device implements local quality by providing region-specific temperature control across different areas of the construction material layer. Each heating zone can be independently adjusted to achieve optimal temperature distribution, ensuring homogeneous temperature control that reduces thermal tensions while maintaining a manageable device structure through localized control rather than global uniformity
Solution Approach 2:
The temperature control device is designed with multi-functionality to handle diverse construction materials with different thermal properties. The same device structure can control temperature homogeneously across various material types by adjusting control parameters, reducing thermal tensions universally without requiring multiple specialized devices, thus limiting the increase in device complexity
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 solution reduces thermal tensions and enhances the mechanical stability and dimensional accuracy of the objects by allowing for individually adjustable and homogeneous temperature control of construction material layers, improving the structural properties of the manufactured objects.
Implementation Method 1
temperature control diodes which are provided for generating a temperature control beam for the temperature control
Implementation Method 2
successive, selective layer-by-layer exposure and thus solidification of construction material layers by means of an energy beam
Data Source
AI summary
An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus solidification of construction material layers of a construction material (3) that can be solidified by means of an energy beam, comprising at least one temperature control device (11), which is provided for at least partial temperature control of a construction material layer formed in a construction plane, wherein the temperature control device (11) comprises at least one temperature control element (12), which is provided for generating an, especially electromagnetic, temperature control beam, wherein the at least one temperature control element (12) is formed as or comprises a temperature control diode.