新しい技術で3Dプリント機械部品の仕上げ時間を改善(New Technique Improves Finishing Time for 3D Printed Machine Parts)

ad

2024-05-14 ノースカロライナ州立大学(NCState)

新しい技術で3Dプリント機械部品の仕上げ時間を改善(New Technique Improves Finishing Time for 3D Printed Machine Parts)

ノースカロライナ州立大学の研究者は、3Dプリント技術を用いた金属機械部品の製造中に自動で品質管理を行う技術を開発しました。この技術により、製造設備から部品を取り外すことなく欠陥を特定し、生産時間を短縮できます。研究では、3Dプリント、自動機械加工、レーザースキャン、感圧測定技術を統合し、仕上げプロセスを自動化しました。実験結果では、従来の技術で200分かかった仕上げが、新技術では133分に短縮されました。この技術は商業利用が可能で、即座に実用化できると期待されています。

<関連情報>

重要な公差を持つ付加製造部品の自動フィーチャーベース検査と認定 Automatic feature-based inspection and qualification for additively manufactured parts with critical tolerances

Christopher J. Kelly; Richard A. Wysk; Ola A. Harrysson; Russell E. King; Brandon M. McConnell
Journal of Manufacturing Technology and Management  Published:01 May 2024
DOI:https://dx.doi.org/10.1504/IJMTM.2024.138337

Abstract

This work expands the capabilities of the digital additive and subtractive hybrid (DASH) system by including geometric qualification of mechanical products. Specifically, this research incorporates the extended additive manufacturing format files (AMF-TOL) which include American Society of Mechanical Engineers (ASME) Y14.5 specifications for planes, cylinders and other features so that in-process inspection can be completed automatically. An example for the production of holes is provided to illustrate on-machine-measurement collects sample radii to estimate the size and position of finished cylindrical features. Statistical analysis was used to measure bounds for comparison to specified tolerance callouts to determine whether a part is within specification, within a user-defined level of confidence. Seven different sampling strategies were evaluated on a DASH part including the bird cage sampling strategy defined in ISO-12180. Part data was utilised to show that for large data samples no statistically significant difference in accuracy was identified for four methods. Finally, analysis shows that using the DASH process with automatic inspection is economically advantageous for low volume production runs.

0107工場自動化及び産業機械0705金属加工
ad
ad
Follow
ad
タイトルとURLをコピーしました