Establishment of suitable parameters for laser machining based production of polymeric implants

Current Directions in Biomedical Engineering

Grabow Niels¹  Bohne Eric²  Stiehm Michael³  Dierke Ariane³  Grossmann Swen³  Schmitz Klaus-Peter³  Siewert Stefan³ 

[1] Institute for Biomedical Engineering, Rostock University Medical Center, 18119 Rostock-Warnemünde, Germany;Institute for ImplantTechnology and Biomaterials e.V., Friedrich- Barnewitz-Str. 4, 18119Rostock-arnemünde, Germany;Institute for ImplantTechnology and Biomaterials e.V., Friedrich-Barnewitz-Str. 4, 18119 Rostock-Warnemünde, Germany;

关键词: laser material processing;    laser machining;    femtosecond laser technology;    polymeric implants;   

DOI  :  10.1515/cdbme-2021-2186

来源: DOAJ

【 摘 要 】

Laser material processing enables precise machining of a wide variety of materials. In order to prevent an excessive heat input, which leads to irreversible material damage, the process parameters have to be adapted to the processed material. To keep the heat load as low as possible, the potential of femtosecond laser technology is exploited. The processing of semi-finished products using femtosecond laser technology is highly depending on the processed material. In this regard, we established a workflow and basic parameters for the processing of polymeric material. The performed parameter study varying cutting speed, cutting gas pressure and pulse energy to optimize the manufacturing process. Scanning electron microscopy (SEM) was utilized to analyze the cutting results, such as cut edge quality or possible melted areas. The established parameter set is also suitable for processing of very filigree material structures as used in innovative medical devices. The SEM analysis of the established parameter set showed that a homogeneous, nonwavy cut edge was created along the kerf.

【 授权许可】

Unknown