Porous Guide Slot Joining for Thin-Walled AM Parts
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Solution Overview
Problem
Conventional joining techniques for additively manufactured parts with thin walls (less than or equal to 1.5 mm) often result in damage to the thin walls.
Innovation Solution
The use of a guide slot with a porous structure in one portion of the joined part, where a joint material is disposed within the porous structure, allowing the second portion to be aligned and secured without damaging the thin walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional joining techniques are used to join additively manufactured portions, then the portions can be connected to form a part, but the thin walls (less than or equal to 1.5 mm) are damaged
Solution Approach 1:
A porous structure is introduced as an intermediary element between the two portions to be joined. This porous structure receives joint material and provides a protective interface that enables joining without direct contact between joining tools and the thin walls, thereby preventing damage while achieving reliable connections
Solution Approach 2:
The invention utilizes a porous structure that can absorb and retain joint material. This porous structure serves as a protective medium during the joining process, allowing the thin-walled portions to be connected without exposing them to damaging conventional joining techniques
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 method effectively joins parts with thin walls while minimizing or eliminating damage, by using the guide slot and joint material to securely hold the second portion in place before sintering.
Implementation Method 1
a porous structure... where a joint material is disposed within the porous structure
Implementation Method 2
The process typically includes selectively heating portions of a layer of powder of the material to melt or sinter the powder to previously-placed layers to form the object layer by layer
Implementation Method 3
selectively heating portions of a layer of powder of the material to melt or sinter the powder
Data Source
AI summary
A joined part comprises a first portion and a second portion. The first portion comprises a guide slot at least partially defined by a porous structure. A joint material is disposed within the porous structure. The second portion is disposed within the guide slot and contacts the porous structure and the joint material disposed therein to form an interfacial joint between the first portion and the second portion. A method of manufacturing the joined part includes disposing a joint material into a porous structure of a guide slot of a first portion, inserting a second portion into the guide slot, and contacting the porous structure and the joint material disposed therein to form an interfacial joint between the first portion and the second portion.