Optimization of process parameters for pulsed laser milling of micro-channels on AISI H13 tool steel

Teixidor, Daniel; Ferrer, I.; Ciurana, Joaquim; Özel, Tuğrul

doi:10.1016/j.rcim.2012.05.005

Cited by 91 publications

(45 citation statements)

References 25 publications

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“…This result confirms what was pointed out in a previous study [14]. As pointed out, this combination reduces the depth relative error, keeping the other objective functions in low values.…”

Section: Simulationsupporting

confidence: 93%

“…This system is a lamp pumped solid-state laser with 1,064nm wave length. The laser has 100W average laser power and with a laser beam spot diameter of 30 µm, which results in an ideal maximum pulse intensity of 1.4 W/cm2 (theoretically estimated as [14]). The x and y movements are guided by highly dynamic scanner as optical-axis-system with a scanning field of 60x60 mm.…”

Section: Experimental Background 31 Laser Systemmentioning

confidence: 99%

“…Volume removal rates and surface roughness were analyzed presenting good results. Teixidor et al [14] studied the effect of the key laser parameters on target dimensions and surface roughness for laser milling of micro-channels on tool steel. They adopted a multi-objective process optimization to predict the best combination of process parameters.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multiobjective Optimization of Laser Milling Parameters of Microcavities for the Manufacturing of DES

Teixidor

Ciurana

Rodrı́guez

2013

Materials and Manufacturing Processes

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This paper presents a multi-objective optimization of the laser milling process of micro-cavities for the manufacturing of drug eluting stents (DES). The diameter, depth and volume error are considered to be optimized in function of the process parameters including laser intensity, pulse frequency and scanning speed. A set of designed experiments is carried out in a pulsed Nd:YAG laser system using 316L Stainless Steel as a work material. Two different geometries are studied, and they are considered as another variable for the model. The multi-objective optimization problem is solved by NSGA-II algorithm, and the non-dominated Pareto-optimal fronts are obtained. The capability of the process to manufacture within a level of error is also investigated. Relative error capability maps for different scale of features are presented.

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“…This result confirms what was pointed out in a previous study [14]. As pointed out, this combination reduces the depth relative error, keeping the other objective functions in low values.…”

Section: Simulationsupporting

confidence: 93%

Section: Experimental Background 31 Laser Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multiobjective Optimization of Laser Milling Parameters of Microcavities for the Manufacturing of DES

Teixidor

Ciurana

Rodrı́guez

2013

Materials and Manufacturing Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…As per their conclusions, the machined width and depth of micronotches mainly depend on laser power and pulse repetition rate. Another study stated that laser milling is a complex process, and it is not easy to claim a concrete combination of laser parameters to get the desired size of micro-channel [12]. They applied Nd/ YAG laser to machine micro-channels of size 200×50 μm.…”

Section: Introductionmentioning

confidence: 99%

A comparison of laser beam machining of micro-channels under dry and wet mediums

Darwish

Ahmed

Alahmari

et al. 2015

Int J Adv Manuf Technol

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Micro-channels have been fabricated in nickelbased superalloy (Inconel 718) through laser beam machining (LBM). Two machining mediums are employed: dry and wet medium. Under the dry medium, laser beam passes through air prior to strike with target surface while under wet medium, the laser beam first travels through a layer of distilled water and reaches the substrate after. For both the machining environments, effects of laser power, pulse repetition rate, and laser scan speed on machined channels' width, depth, and taperness are investigated. A comparison of parametric effects on machined channels' profiles has been carried out for the said machining conditions. The results reveal that LBM under distilled water is more productive than LBM under air environment. In one step, wet machining conditions allow to generate a set of two microchannels, and dry conditions generate one micro-channel. Further, to achieve the optimum dimensions of micro-channels, the appropriate level of each of the investigated laser parameter is proposed.

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“…As per their conclusions the micro-notches vary in sizes and the machined width and depth mainly depend on laser power and pulse repetition rate. Another study stated that laser milling is a complex process due to which a variation in depth and width of micro-channel can be soundly observed [236]. They applied Nd:YAG laser to machine micro-channels of size 200 Â 50 µm.…”

Section: Fabrication Techniquesmentioning

confidence: 99%

Laser Beam Machining, Laser Beam Hybrid Machining, and Micro-channels Applications and Fabrication Techniques

Darwish

Ahmed

Al‐Ahmari

2016

Machining, Joining and Modifications of Advanced Materials

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Laser beam machining (LBM) has proven its applications and advantages over almost all the range of engineering materials. It offers its competences from macro machining to micro and nano-machining of simple-to-complex shapes. The flipside of LBM is the existence of universal problems associated with its thermal ablation mechanism. In order to alleviate or reduce the inherent problems of LBM, a massive research has been done during the past decade and in turn build a relatively new route of laser-hybrid processes. The hybrid approaches in laser ablation have demonstrated much improved results in terms of material removal rate, surface integrity, geometrical tolerances, thermal damage, metallurgical alterations and many more. This chapter reviews the research work carried out so far in the area of LBM and its hybrid processes for different materials and shapes.

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Optimization of process parameters for pulsed laser milling of micro-channels on AISI H13 tool steel

Cited by 91 publications

References 25 publications

Multiobjective Optimization of Laser Milling Parameters of Microcavities for the Manufacturing of DES

Multiobjective Optimization of Laser Milling Parameters of Microcavities for the Manufacturing of DES

A comparison of laser beam machining of micro-channels under dry and wet mediums

Laser Beam Machining, Laser Beam Hybrid Machining, and Micro-channels Applications and Fabrication Techniques

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