Laser Precision Cutting of High-melting Metal Foils

Uebel, Martin; Bliedtner, Jens

doi:10.1016/j.proeng.2014.02.208

Cited by 5 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth mentioning that other non-conventional processes have been applied to tungsten aside EDM and ECM. These processes include water jet cutting [99], laser cutting [100][101][102], and laser drilling [103,104]. A discussion of studies and findings from these non-conventional machining techniques is provided next.…”

Section: Non-conventional Machining Of Tungstenmentioning

confidence: 99%

“…The use of these ultrashort pulsed lasers, including picosecond and femtosecond lasers, can produce high-quality surface finishes [117]. In order to assess the suitability of using lasers for high precision cutting of tungsten foils (90 and 110 µm thick), Uebel and Bliedtner [102] examined different laser types, including fiber and solid state lasers with pulse durations ranging from picoseconds to a continuous wave with different wavelengths (355, 532, and 1064 nm). In this study, high-quality edges were found to be produced using picosecond lasers with short pulse durations, regardless of the wavelength.…”

Section: Other Non-conventional Techniquesmentioning

confidence: 99%

See 1 more Smart Citation

Advanced Processing and Machining of Tungsten and Its Alloys

Omole

Lunt

Kirk

et al. 2022

JMMP

View full text Add to dashboard Cite

Tungsten is a refractory metal with the highest melting temperature and density of all metals in this group. These properties, together with the high thermal conductivity and strength, make tungsten the ideal material for high-temperature structural use in fusion energy and other applications. It is widely agreed that the manufacture of components with complex geometries is crucial for scaling and optimizing power plant designs. However, there are challenges associated with the large-scale processing and manufacturing of parts made from tungsten and its alloys which limit the production of these complex geometries. These challenges stem from the high ductile-to-brittle transition temperature (DBTT), as well as the strength and hardness of these parts. Processing methods, such as powder metallurgy and additive manufacturing, can generate near-net-shaped components. However, subtractive post-processing techniques are required to complement these methods. This paper provides an in-depth exploration and discussion of different processing and manufacturing methods for tungsten and identifies the challenges and gaps associated with each approach. It includes conventional and unconventional machining processes, as well as research on improving the ductility of tungsten using various methods, such as alloying, thermomechanical treatment, and grain structure refinement.

show abstract

Section: Non-conventional Machining Of Tungstenmentioning

confidence: 99%

Section: Other Non-conventional Techniquesmentioning

confidence: 99%

Advanced Processing and Machining of Tungsten and Its Alloys

Omole

Lunt

Kirk

et al. 2022

JMMP

View full text Add to dashboard Cite

show abstract

“…It has been found that in comparison with mechanical cutting, for example, blanking or guillotining fiber lasers cause less stresses in the material and reduce the cut surface defects, for example, burrs and edge waves. The study [18] presents different cutting methods and types of laser, which were used in the examinations in order to achieve a distortion-low and high-quality cutting of the materials in the sintered and unsintered state at high process velocities. Observation of influence of high power (30 kW) of fiber laser on cutting process of very thick plates of carbon steel (300 mm) was carried out in work [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of fiber and CO2 lasers parameters on the cut surface quality of RVS 1.4301 stainless steel

Bohdal

Schmidtke

2022

JMES

View full text Add to dashboard Cite

The paper presents the results of experimental research related to the process of cutting of t = 3 mm and t = 6 mm thick RVS 1.4301 (AISI 304, EN X5CrNi18-10) stainless steel using a fiber and CO2 lasers. The correct selection of technological parameters and the maintenance of the machines in the right technical condition allow obtaining very high quality of the cut edge, which will not require additional mechanical treatment. However, this is a complex issue. Appropriate control of the cutting process requires knowledge about the impact of individual parameters on the process and the quality of the cut edge. The influence of selected parameters and conditions of the laser cutting process on the technological quality of the obtained product was determined. The laser power and cutting speed had a significant influence on the output factors for two cutting techniques.For cutting material with a thickness of t = 3 mm with a CO2 laser, the highest quality of the cut edge was obtained using the power values P = 4200-4300 W and cutting speed v = 2100 mm/min. For the thickness t = 6 mm, the speed values should be approximately set in range v = 1600-1800 mm/min. The power value should be selected in a range from P = 3700 W to P = 4200 W. For a fiber laser with a material thickness of t = 3 mm, the best results were obtained using speeds in the range v = 2000-3300 mm/min. For the thickness of t = 6 mm, the cutting speed must be higher and in the range v = 3500-4000 mm/min while maintaining the power of about P = 4500-4800 W. The conducted experimental research can be useful on production lines in the aspect of the correct selection of technological parameters of the process due to the adopted energy and quality criteria.

show abstract

“…Work presented by Abrao et al [ 10 ] evaluated the effect of the processing parameters on the quality of the cut for several engineering plastics. Uebel and Bliedtner [ 11 ] presented different cutting methods and types of laser which were used in the examinations in order to achieve a low-distortion and high-quality cutting of the materials in the sintered and unsintered state at high process velocities. The test results were analyzed with the use of picosecond lasers at different wavelengths (1064 nm, 532 nm and 355 nm).…”

Section: Introductionmentioning

confidence: 99%

Application of Ultraviolet Laser Working in Cold Ablation Conditions for Cutting Labels Used in Packaging in the Food Industry

et al. 2020

View full text Add to dashboard Cite

This work presents experimental studies aiming at the development of new technology and guidelines for shaping labels from polypropylene multilayer foil using an ultraviolet (UV) laser cutting operation. Currently on production lines, the shaping of labels is undertaken by mechanical cutting or laser cutting, taking into account the phenomenon of hot ablation. These technologies cause many problems such as burr formation on labels sheared edges, rapid tool wear, or heat-affected zone (HAZ) formation. The experimental tests were carried out on a specially designed laser system for cutting polypropylene foil using the phenomenon of cold ablation. Parametric analyses were conducted for several foil thicknesses t = 50, 60, 70 and 80 µm. The process parameters were optimized in terms of high efficiency and high labels-cut surface quality. A new criterion has been developed for assessing the quality of UV laser cutting of polypropylene foils. The results indicate a significant effect of the cutting speed and laser frequency on the width of the degraded zone on the sheet cut edge. As a result of a developed optimization task and reverse task solution it is possible to cut labels at high speeds (v = 1.5 m/s) while maintaining a high quality of cut edge free of carbon, delamination and color changes. A degraded zone does not exceed in the examined cases s ≤ 0.17 mm.

show abstract

Laser Precision Cutting of High-melting Metal Foils

Cited by 5 publications

References 0 publications

Advanced Processing and Machining of Tungsten and Its Alloys

Advanced Processing and Machining of Tungsten and Its Alloys

Effect of fiber and CO2 lasers parameters on the cut surface quality of RVS 1.4301 stainless steel

Application of Ultraviolet Laser Working in Cold Ablation Conditions for Cutting Labels Used in Packaging in the Food Industry

Contact Info

Product

Resources

About