Sealed Component Carrier for Additive Manufacturing Post-Processing

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Solution Overview

Problem

Current additive manufacturing systems face challenges in post-processing components due to the need for manual handling of uncured photopolymers, which requires protective equipment, UV-free environments, and specific material properties for safety-critical applications, leading to inefficiencies and risks in material properties setting.

Innovation Solution

A component carrier with a sealing surface that surrounds the construction surface, acting as a system boundary for post-processing, which seals against photoreactive resin, solvent, and UV radiation, allowing for integrated washing, drying, and curing within a closed workspace, reducing the need for multiple devices and manual handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual handling of uncured photopolymers is performed, then post-processing can be completed, but protective equipment and UV-free environments are required, increasing operational complexity and safety risks

Engineering Contradiction:
Improvepost-processing operationVSAvoidoperational requirements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The component carrier integrates multiple previously separate functions (washing, drying, curing) into a single sealed workspace, eliminating the need for multiple devices and manual transfers between them

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The component carrier serves multiple functions: it acts as both the construction surface for additive manufacturing and a sealed container for post-processing operations, including washing, drying, and curing

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple separate devices are used for washing, drying, and curing, then each function can be performed, but system complexity and space requirements increase

Engineering Contradiction:
Improvepost-processing capabilityVSAvoidnumber of devices
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The component carrier combines washing, drying, and curing functions into a single integrated unit, reducing the number of separate devices from three to one

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The component carrier is designed as a multi-functional device that can perform washing, drying, and curing operations within its sealed workspace

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If manual handling of resin-wetted components is performed, then post-processing can be completed, but resin residues can soil the manufacturing device and work area

Engineering Contradiction:
Improvepost-processing efficiencyVSAvoidresin contamination
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The component carrier extracts and contains the resin-wetted component within its sealed workspace, preventing resin residues from escaping and contaminating the manufacturing device and work area

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The component carrier uses a sealed workspace with sealing surfaces to contain the component and prevent resin leakage during handling and processing

Inventive Principle:
Principle #30Flexible shells and thin films

4Productivity

If photopolymer resins are used, then components can be manufactured, but odorous residues can cause irritations

Engineering Contradiction:
Improvemanufacturing capabilityVSAvoidodorous irritation
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The component carrier employs a sealed workspace that acts as a barrier, containing odorous photopolymer resin residues and preventing them from escaping into the surrounding environment

Inventive Principle:
Principle #30Flexible shells and thin films

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 enables simple, cost-effective, and space-saving post-processing by integrating washing, drying, and curing steps within a single device, minimizing environmental impact and ensuring consistent material properties without the need for protective equipment or specialized UV-free environments.

Implementation Method 1

the component carrier seals the workspace against the escape of photoreactive resin, solvent and UV radiation

Methodology Applied
Scientific EffectSealing:

Implementation Method 2

Photopolymers are not only radically cured, but also cationically

Methodology Applied
Scientific EffectPhotopolymerization: Photopolymerisation

Data Source

PatentEP3702052B1Component carrier for an additive manufacturing device
Publication Date: 2024.07.31 SIRONA DENTAL SYSTEMS GMBH CORP LEGAL
  • EP3702052B1 patent drawingFigure 1~3
  • EP3702052B1 patent drawingFigure 4~5
  • EP3702052B1 patent drawingFigure 6~7

AI summary

Component carrier (45) for an additive manufacturing device (1), wherein the component carrier (45) comprises a construction surface (7), on which a component (8) to be manufactured is disposed during the operation of the manufacturing device (1), wherein the component carrier (45) comprises a sealing surface (14) which radially surrounds the construction surface (7), and method for post-processing a component (8) manufactured according to an additive manufacturing process using such a component carrier (3).