Additive Manufacturing Support Structure Segmentation
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Solution Overview
Problem
Existing additive manufacturing processes face challenges in producing complex geometries without support structures, particularly when the distance from the base surface to the finished part is large, leading to difficulties in accessibility and removal of support structures.
Innovation Solution
A method for manufacturing a component using a powder-bed production process, where the support structure is connected to an easy partial section of the finished part via a first partial attachment with multiple small connection points, allowing for improved accessibility and easier removal of the support structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If support structures are attached to difficult-to-reach sections of the finished part, then complex geometries can be manufactured, but accessibility for removal becomes difficult
Solution Approach 1:
The support structure connection is segmented into multiple small connection points distributed across the attachment area, rather than a single large connection. This segmentation allows each small point to be accessed and removed individually, improving overall accessibility while maintaining the structural integrity needed to support complex geometries during manufacturing
Solution Approach 2:
The patent introduces an intermediary attachment structure that connects the support structure to the finished part through multiple small connection points. This intermediary connection method acts as a mediator that provides sufficient mechanical support during manufacturing while enabling easier removal compared to direct large-area attachment
2Stability of the object's composition
If support structures extend from the base surface to support problematic sections, then manufacturing stability is improved, but the outlay for producing and removing support structures increases
Solution Approach 1:
The patent extracts only the essential support function from traditional extensive support structures. By using multiple small connection points, the support structure provides necessary manufacturing stability while minimizing the amount of material and time required for both production and removal, taking out only what is absolutely necessary for process stability
3Adaptability or versatility
If the distance from the base surface to the finished part is large, then complex geometries can be produced, but support structure accessibility and removal difficulty increase
Solution Approach 1:
The connection between support structure and finished part is divided into multiple small connection points, which can be accessed and removed individually. This segmentation reduces the overall complexity of the removal process even when the support structure spans large distances, as each small connection point can be addressed separately rather than requiring complex removal of a large monolithic connection
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 enables the reliable and efficient production of complex geometries by facilitating the connection of support structures to difficult-to-reach sections of the finished part, improving accessibility and simplifying the removal process.
Implementation Method 1
the manufacture of a metal component, use is generally made of the 'SLM method' (selective laser melting method), in which a powdered material is melted in layers at the location of the respective component
Implementation Method 2
the connection points, which are as small as possible, between the support structure and the easy partial section of the finished part
Data Source
AI summary
A component which was manufactured in a powder-bed production process, proceeding from a base plane. The component includes a finished part and a support structure. The finished part can be divided into an easy portion, which can be manufactured from the base plane without a support structure, and a difficult portion, which cannot be manufactured without a support structure. The support structure is connected to the easy portion by a first partial attachment and to the difficult portion by a second partial attachment. In order to simplify the subsequent processing, the first partial attachment has a plurality of connection points having an equivalent diameter of at most 1 mm.