Evaluation of maximum overhang angles for the support-free additive manufacturing of calcium phosphate cement structures

Publikation: Beitrag in FachzeitschriftKonferenzartikelBeigetragenBegutachtung

Beitragende

Abstract

The paper examines the process parameters of 3D printing for the manufacturing of implant structures made of calcium phosphate cement, taking into account different overhang angles. The aim of the investigation is to ensure a dimensionally stable manufacturing of overhangs that meets the requirements of individual implants. To this end, samples with and without an outer contour were printed at different angles (20° to 48°) and with different numbers of layers (16, 24, 32, 40) and analyzed metrologically. The methodology included a systematic variation of relevant parameters to investigate the influence of the overhang angle and the number of layers on the shape deviations. The results showed that samples without an outer contour still exhibited sufficient dimensional stability up to an overhang angle of 38°, while significant dimensional distortions were observed in samples with an outer contour from an angle of 30°. In both cases, a layer count of 24 proved to be optimal for high overhang quality.

Details

OriginalspracheEnglisch
Seiten (von - bis)20-23
Seitenumfang4
FachzeitschriftCurrent Directions in Biomedical Engineering
Jahrgang11
Ausgabenummer1
PublikationsstatusVeröffentlicht - 1 Sept. 2025
Peer-Review-StatusJa

Externe IDs

Mendeley 018d247d-8ca1-32f7-9e9e-f3cb51b14108
unpaywall 10.1515/cdbme-2025-0106

Schlagworte

Schlagwörter

  • Calcium Phosphat Cement, CPC, Additive Manufacturing, Individuelle Implantate, Überhangwinkel