3D Printing Beam Enclosure for Temperature and Contamination Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing additive layer manufacturing techniques face challenges in achieving consistent quality of three-dimensional workpieces due to variations in irradiation beam path conditions, which are influenced by temperature and contamination, leading to suboptimal beam steering and processing stability.
Innovation Solution
An apparatus with a translucent enclosure and fluid control system is introduced to stabilize the irradiation beam path by managing temperature and cleanliness, using sensors and fluid flow to maintain optimal conditions for beam steering and material processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the irradiation beam path is exposed to the environment, then the apparatus structure is simpler, but temperature variations and contamination affect beam quality and workpiece quality
Solution Approach 1:
A translucent enclosure is introduced as an intermediary component between the irradiation beam source and the material. This enclosure protects the beam path from environmental contamination and temperature variations while allowing the laser beam to pass through, thus improving workpiece quality without significantly complicating the apparatus structure.
Solution Approach 2:
The translucent enclosure creates a controlled, inert environment for the irradiation beam path. By isolating the beam path from the external environment, the enclosure prevents contamination and stabilizes temperature conditions, ensuring consistent beam quality and workpiece manufacturing precision.
2Ease of operation
If the translucent window is used for beam entry, then the beam can enter the process chamber, but the window temperature affects beam path conditions
Solution Approach 1:
The translucent enclosure acts as an intermediary thermal management system around the beam entry window. It provides thermal isolation and stabilization, preventing temperature fluctuations from affecting the beam path conditions while maintaining ease of beam entry through the translucent window.
Solution Approach 2:
The invention controls the temperature parameter of the translucent window by providing thermal isolation through the enclosure. This stabilizes the optical properties of the window material, ensuring consistent beam transmission and path stability without compromising the ease of beam entry operation.
3Measurement precision
If no enclosure is used, then the apparatus is simpler, but contamination and temperature variations reduce beam steering accuracy
Solution Approach 1:
The translucent enclosure serves as a protective intermediary that shields the beam path from environmental contaminants and temperature variations. This improves beam steering accuracy by maintaining stable optical conditions without requiring complex active control systems, achieving precision enhancement with moderate structural addition.
4Object-affected harmful factors
If the enclosure is made opaque, then contamination is prevented, but the irradiation beam cannot pass through
Solution Approach 1:
The translucent enclosure creates a protected environment similar to an inert atmosphere - it prevents harmful contamination factors from reaching the beam path while remaining transparent to the irradiation beam. This allows simultaneous achievement of contamination protection and beam transmission without energy loss.
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 solution provides stable temperature and clean environment for the irradiation beam, enhancing the quality and precision of three-dimensional workpiece production by controlling beam parameters and reducing contamination effects.
Implementation Method 1
the process chamber comprises a translucent window; an irradiation device for irradiating, through the translucent window, the material for producing the three-dimensional workpiece
Implementation Method 2
the apparatus is configured to control a flow of a fluid through the enclosure via the inlet and the outlet
Implementation Method 3
The laser irradiation penetrating into the powder layer causes heating and consequently melting or sintering of the raw material powder particles
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.