Rapid manufacturing of micro-drilling devices using FFF-type 3D printing technology

Park, Sangyeun; Ko, Byeongjo; Lee, Heewon; So, Hongyun

doi:10.1038/s41598-021-91149-8

Cited by 6 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Te commercially available tungsten carbide drill bit of diameter 0.5, 0.7, and 0.9 mm, with the angle of the 45 °fute is used in the present study. Among the considered blades (45 °, 0 °, and helical type), 45 °blades exhibited the best drilling performance [28]. Te dimensions of the printed sample are convenient to adapt to the working table of the CNC machine.…”

Section: Methodsmentioning

confidence: 99%

Microdrilling Studies PLA/Bronze Composite Samples Printed Using Fused Deposition Model

Sneha¹,

Balamurugan²,

Jyothi³

et al. 2023

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Fused deposition models (FDMs) are the latest trends for constructing complicated and instinctive 3D printing. Polylactic acid (PLA) is the most widely used raw material in extrusion-based three-dimensional (3D) printing in many areas since it is biodegradable and environmentally friendly; however, its utilization is limited due to some of its disadvantages such as mechanical weakness and water solubility rate. To increase the mechanical properties of the FDM, nano bronze particles have been added as advanced research. Printing the hole less than a millimetre is complicated, and there is a limited report available in FDM. In this paper, polylactic acid (PLA) with a 14% bronze composite filament is made by hot extruding under the desired FDM conditions. The samples are built with 100% infilled density with 45° orientation to a sample size of 50 × 50 × 10 mm. To examine the printing state and the effect of microdrilling on the printed specimen, two different specimens are printed with and without holes. An industrial drill with specified feed, speed, and cutting width is used to perform the test. The size of the drilled hole is checked by scanning electron microscopy. The quality of the drilled hole and the wear of the tool is investigated and reported. According to the observation, it is noted that the secondary machining operation becomes unavoidable to have a hole of less than a millimetre. Machining, cutting speed, and feed speed influence the delamination zone and the circumference of the hole.

show abstract

Section: Methodsmentioning

confidence: 99%

Microdrilling Studies PLA/Bronze Composite Samples Printed Using Fused Deposition Model

Sneha¹,

Balamurugan²,

Jyothi³

et al. 2023

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Originally used for rapid prototyping, 3D printing techniques have increasingly entered into the application areas of rapid manufacturing and rapid tooling [1][2][3]. Many typical 3D printing polymers, e.g.…”

Section: Introductionmentioning

confidence: 99%

Sandwiching textiles with FDM Printing

Özev

Ehrmann

2023

cdatp

View full text Add to dashboard Cite

3D printing on textile fabrics has been investigated intensively during the last years. A critical factor is the adhesion between the printed polymer and the textile fabric, limiting the potential areas of application. Especially safety-related applications, e.g. stab-resistant textile/polymer composites, need to show reliable adhesion between both components to serve their purpose. Here we investigate the possibility of sandwiching textiles between 3D-printed layers, produced by fused deposition modeling (FDM). We show that adding nubs to the lower 3D-printed layers stabilizes the inner textile fabric and suggest future constructive improvements to further enhance the textile-polymer connection.

show abstract

“…The FDM method deposits a filament (e.g., polylactic acid or acrylonitrile butadiene styrene) layer-by-layer; however, the resulting product has a poor surface roughness[ 38 , 39 ]. Recent studies have revealed that this drawback (i.e., rough surface) can be intentionally utilized for various applications such as (super) hydrophobic surfaces[ 40 ], micro-drilling devices[ 41 ], microchannels[ 42 ], and non-sticky surfaces[ 43 ].…”

Section: Introductionmentioning

confidence: 99%

3D-Printing-Assisted Extraluminal Anti-Reflux Diodes for Preventing Vesicoureteral Reflux through Double-J Stents

Sung¹,

Jo²,

So³

2022

IJB

Self Cite

View full text Add to dashboard Cite

This paper presents novel umbrella-shaped flexible devices to prevent vesicoureteral reflux along double-J stents, which is a backward flow of urine from the bladder to the kidney and is a critical issue in patients with urinary stones. The anti-reflux devices were designed to mechanically attach to the stent and were manufactured using three-dimensional (3D) printing and polymer casting methods. Based on the umbrella shapes, four different devices were manufactured, and the antireflux efficiency was demonstrated through in vitro experiments using a urination model. Consequently, penta-shaped devices exhibited the best anti-reflux performance (44% decrease in reflux compared to the stent without the device), and maximum efficiency occurred when the device was attached near the bladder-ureter junction. In addition, a disadvantage of 3D printing (i.e., unwanted rough surface) helped the device strongly adhere to the surface of the stent during the insertion operation. Finally, long-term soaking experiments revealed that the fabricated devices were mechanically robust and chemically stable (safe) even being soaked in urine for 4 weeks. The findings of this study support the use of additive manufacturing to make various flexible and biocompatible urological devices to mitigate critical issues in patients with urinary stones.

show abstract

Rapid manufacturing of micro-drilling devices using FFF-type 3D printing technology

Cited by 6 publications

References 37 publications

Microdrilling Studies PLA/Bronze Composite Samples Printed Using Fused Deposition Model

Microdrilling Studies PLA/Bronze Composite Samples Printed Using Fused Deposition Model

Sandwiching textiles with FDM Printing

3D-Printing-Assisted Extraluminal Anti-Reflux Diodes for Preventing Vesicoureteral Reflux through Double-J Stents

Contact Info

Product

Resources

About