3D Printing Window Enclosure for Stable Beam and Temperature Control
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Solution Overview
Problem
Existing additive layer manufacturing techniques face challenges in achieving consistent quality of three-dimensional workpieces due to various parameters affecting the process.
Innovation Solution
An apparatus comprising a process chamber with a translucent window and an enclosure with a fluid flow control system, allowing for precise control of the irradiation beam path and temperature conditions to enhance the quality of the workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If additive layer manufacturing is used to produce three-dimensional workpieces, then complex shapes can be created, but quality consistency is difficult to achieve
Solution Approach 1:
The patent controls the temperature of the translucent window by varying fluid flow parameters (flow rate, temperature, pressure) through the enclosure. This dynamic parameter adjustment maintains optimal beam transmission conditions throughout the manufacturing process, ensuring consistent workpiece quality across different layers and production times.
Solution Approach 2:
The system monitors temperature conditions of the translucent window and adjusts fluid flow parameters accordingly. This feedback mechanism compensates for temperature variations that would otherwise cause beam path instability, thereby maintaining reliable and consistent workpiece quality throughout the additive manufacturing process.
2Reliability
If the translucent window temperature is not controlled, then the apparatus structure remains simple, but the irradiation beam path becomes unstable
Solution Approach 1:
The patent introduces a fluid enclosure as an intermediary system between the irradiation source and the workpiece. This enclosure acts as a thermal buffer, mediating heat transfer from the process chamber to a cooling/heating fluid, thereby stabilizing the translucent window temperature and ensuring reliable beam path conditions.
Solution Approach 2:
The system uses fluid flow (pneumatic or hydraulic) through the enclosure to control temperature of the translucent window. By regulating fluid pressure and flow rate, the system maintains stable thermal conditions for the beam path without requiring complex active heating or cooling mechanisms directly at the window.
3Stability of the object's composition
If fluid flow control is added to the apparatus, then temperature stability is improved, but device complexity increases
Solution Approach 1:
The fluid enclosure serves multiple functions simultaneously: it cools/heats the translucent window, stabilizes the beam path, and can be integrated with existing process chamber environmental control systems. This multi-functionality reduces the need for separate dedicated temperature control mechanisms, thereby limiting the increase in overall 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
The apparatus provides stable temperature conditions and precise control over the irradiation beam, leading to improved quality and consistency of three-dimensional workpieces produced using additive layer manufacturing techniques.
Implementation Method 1
The apparatus is configured to control a flow of a fluid through the enclosure via the inlet and the outlet... stable temperature conditions... improved quality and consistency
Implementation Method 2
an enclosure arranged between the translucent window of the process chamber and the irradiation device, wherein at least a part of the enclosure is translucent for an irradiation beam stemming from the irradiation device to travel from the irradiation device through the enclosure
Data Source
AI summary
We describe an apparatus for producing a three-dimensional workpiece, the apparatus comprising: a process chamber for receiving a material from which the three-dimensional workpiece is producible using an additive layer manufacturing technique, wherein the process chamber comprises a translucent window; an irradiation device for irradiating, through the translucent window, the material for producing the three-dimensional workpiece; and an enclosure arranged between the translucent window of the process chamber and the irradiation device, wherein at least a part of the enclosure is translucent for an irradiation beam stemming from the irradiation device to travel from the irradiation device through the enclosure to the material for producing the three-dimensional workpiece, wherein the enclosure comprises an inlet and an outlet, and wherein the apparatus is configured to control a flow of a fluid through the enclosure via the inlet and the outlet.