Sensing and control in glass additive manufacturing

Peters, Daniel; Drallmeier, Joseph A.; Bristow, Douglas A.; Landers, Robert G.; Kinzel, Edward C.

doi:10.1016/j.mechatronics.2018.06.002

Cited by 18 publications

(9 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Commercially available OptiWhite soda-lime silicate glass (Pilkington Ltd., Lancashire, UK/NSG Co. Ltd., Tokyo, Japan; Composition [mol.%]: 71. 3 OptiWhite is often referred to as iron (Fe) reduced window glass, with several of its properties listed in [19].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Coupling Raman, Brillouin and Nd3+ Photo Luminescence Spectroscopy to Distinguish the Effect of Uniaxial Stress from Cooling Rate on Soda–Lime Silicate Glass

et al. 2021

View full text Add to dashboard Cite

Evolution of spectroscopic properties of a soda–lime silicate glass with different thermal history and under applied uniaxial stress was investigated using Raman and Brillouin spectroscopies as well as Nd3+ photoluminescence techniques. Samples of soda–lime silicate with a cooling rate from 6 × 10−4 to 650 K/min were prepared either by controlled cooling from the melt using a differential scanning calorimeter or by a conventional annealing procedure. Uniaxial stress effects in a range from 0 to −1.3 GPa were investigated in situ by compression of the glass cylinders. The spectroscopic observations of rearrangements in the network structure were related to the set cooling rates or the applied uniaxial stress to calculate an interrelated set of calibrations. Comparing the results from Raman and Brillouin spectroscopy with Nd3+ photoluminescence analysis, we find a linear dependence that can be used to identify uniaxial stress and cooling rate in any given combination concurrently. The interrelated calibrations and linear dependence models are established and evaluated, and equations relating the change of glass network due to effects of cooling rate or uniaxial stress are given.

show abstract

Section: Methodsmentioning

confidence: 99%

“…In the past decade, the processing of glass was extended by a vast range of new methods, especially by laser-based cutting [1,2], additive manufacturing [3][4][5] or direct structuring [6,7]. All these methods, also including more conventional approaches like molding [8], utilize temperature as a core element.…”

Section: Introductionmentioning

confidence: 99%

Coupling Raman, Brillouin and Nd3+ Photo Luminescence Spectroscopy to Distinguish the Effect of Uniaxial Stress from Cooling Rate on Soda–Lime Silicate Glass

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The path plan was designed to incorporate both linear and rotation stages to maintain a constant linear velocity tangent to the desired curve. By incorporating both stages, arbitrary curved geometries can be created so long as the substrate is large enough to accommodate it 19 . The experiment was designed to examine the relationship between arc geometry and fiber morphology to the resulting optical transmission.…”

Section: Deposition Morphologymentioning

confidence: 99%

“…By incorporating both stages, arbitrary curved geometries can be created so long as the substrate is large enough to accommodate it. 19 The experiment was designed to examine the relationship between arc geometry and fiber morphology to the resulting optical transmission. The tacked (weakly fused) fibers were produced at Φ ¼ 57.5 W with v ¼ 6.75 mm∕s, whereas slumped fibers were created at Φ ¼ 33 W with v ¼ 1 mm∕s.…”

Section: Dependence Of Curved Transmission On Morphologymentioning

confidence: 99%

Digital glass forming of photonics

et al. 2023

View full text Add to dashboard Cite

.We investigate the digital glass forming process for depositing commercial SMF-28 single-mode optical fiber for photonic purposes. The process utilizes a CO2 laser to locally heat the feedstock to fuse it onto a fused quartz substrate. We focus on how altering the deposition parameters, including the laser power, feed rate, and path plan, affects the deposited fiber morphology and how this affects the optical transmission. At high powers, the fiber bonds strongly to the substrate, resulting in significant changes in fiber morphology and core shape. With a gradient transition between the feedstock geometry and the deposition geometry, high optical transmission for straight line depositions can be achieved. Additional work was performed examining the optical losses when the fiber is deposited around a constant radius curve for different fiber morphologies, with higher losses recorded for higher power samples. Comparing the doping profile of these samples indicates that the gradient of Ge decreases at higher laser power, suggesting the losses are caused by diffusion of the fiber core. This work shows that for high input powers, the optical losses around curves are increased, leading to a tradeoff between the bonding strength and optical transmission for these geometries.

show abstract

“…In the process of micro-nano structure, the microporous plate formed by micropore array structure is one of the common structures of biological analysis, screening filtration and heat dissipation devices [1]. Non-conductive brittle materials (such as ultra-white glass) are regarded as substrate materials for microporous array plates due to their excellent properties such as high hardness, corrosion resistance and insulation [2].…”

Section: Introductionmentioning

confidence: 99%

Glass Surface Modification Was Induced by the Combination of Coating Technology and Femtosecond Laser Assisted Chemical Etching

et al. 2022

View full text Add to dashboard Cite

Due to its high hardness and high transmittance, ultra-white glass has a strong application prospect in the fields of optoelectronics industry and experimental instruments. However, because of its brittleness, it was still a difficult problem in the machining industry. Surface modification provides a basic research idea for ultra-white glass microstructure processing. An effective method to obtain surface modified area on ultra-white glass was presented. The modified zone on the surface of ultra-white glass was induced by the technique of coating and femtosecond laser-assisted chemical etching. The method combines vacuum coating with femtosecond laser irradiation. Next, the modified glass was processed with highly selective potassium hydroxide solution. In order to control the surface size more efficiently, the optimization experiment of laser parameters and chemical parameters on the machining process was carried out. The experimental results show that the method made the surface modification of ultra-white glass more easily and provides basic research for fabricating microchannels on the material.

show abstract

Sensing and control in glass additive manufacturing

Cited by 18 publications

References 9 publications

Coupling Raman, Brillouin and Nd3+ Photo Luminescence Spectroscopy to Distinguish the Effect of Uniaxial Stress from Cooling Rate on Soda–Lime Silicate Glass

Coupling Raman, Brillouin and Nd3+ Photo Luminescence Spectroscopy to Distinguish the Effect of Uniaxial Stress from Cooling Rate on Soda–Lime Silicate Glass

Digital glass forming of photonics

Glass Surface Modification Was Induced by the Combination of Coating Technology and Femtosecond Laser Assisted Chemical Etching

Contact Info

Product

Resources

About