&lt;title&gt;Laser milling: a practical industrial solution for machining a wide variety of materials&lt;/title&gt;

Henry, Matthew; Harrison, Paul M.; Henderson, I.A.; Brownell, Michael

doi:10.1117/12.596743

Cited by 21 publications

(10 citation statements)

References 13 publications

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“…Latest generation Q-switched diode pumped solid state lasers (DPSSLs) can be used for industrial applications to produce 3-D intricate profiles by laser milling of a wide variety of materials including aerospace alloys, thermal barrier coatings, tool steels, diamond and diamond substitutes [61]. Werner et al [62] have recently proposed the application of CO 2 laser milling in medical field for producing micro-cavities in bone and teeth tissues without damaging the soft tissues.…”

Section: Lbm Applicationsmentioning

confidence: 99%

Laser beam machining—A review

Dubey¹,

Yadava²

2008

International Journal of Machine Tools and Manufacture

730

230

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Section: Lbm Applicationsmentioning

confidence: 99%

Laser beam machining—A review

Dubey¹,

Yadava²

2008

International Journal of Machine Tools and Manufacture

730

230

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“…23 In their study, the feasibility of this technique in terms of the material removal rate (MRR), surface roughness and complex feature shaping was studied and compared with the traditional grinding process. Laser milling was also studied for creating small and complex structures in different materials, 24,25 including ceramics 26 and PCD. 27 Despite these good efforts, the studies and associated knowledge in terms of the machining performance and process characteristics in pulsed laser milling of PCD are still in severe dearth.…”

Section: Background and Review Of Previous Studymentioning

confidence: 99%

Analysis of the machining performance and surface integrity in laser milling of polycrystalline diamonds

Wang

Huang

2013

Proceedings of the Institution of Mechanical Engineers, Part B:

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The increasing use of diamond cutting tools necessitates the development of compatible fabrication technologies for the diamond tools, especially for three-dimensional surfaces with micron scale accuracy and good surface quality. In this article, the formation mechanism of surfaces milled using a nanosecond pulsed laser on polycrystalline diamond and the effect of process parameters on the milling performance such as material removal rate and surface integrity are investigated based on a statistically designed experiment. It is shown that laser milling is a viable technology for three-dimensional processing of polycrystalline diamonds with good machining rates and acceptable surface quality. A microscopy analysis indicates that diamond graphitization can occur on the milled surfaces, and laser pulse energy and pulse overlap have a significant effect on the milled surface morphology. Characterization of the machined surface/ subsurface is conducted using Raman spectroscopy, and the relationships between damaged surface layer thickness and process parameters are discussed. It is found that an optimum pulse overlap together with moderate pulse energy may be used, while the scan overlap should be selected in the vicinity of its optimum value at around 50% for a good surface quality while maintaining a high material removal rate.

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“…Laser milling consists in the controlled evaporation of material caused by its interaction with a high-energy pulsed laser beam. The amount of vaporized material depends not only on laser pulse characteristics, but also on the composition of the material to be removed (Kuhl, 2002;Henry et al, 2004). A conventional milling machine knows in every moment the amount of material removed (the whole volume of the mill), but this is not so easy for a lasermilling centre.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the operating conditions in a high precision industrial process using soft computing techniques

et al. 2011

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This interdisciplinary research is based on the application of unsupervized connectionist architectures in conjunction with modelling systems and on the determining of the optimal operating conditions of a new high precision industrial process known as laser milling. Laser milling is a relatively new micro-manufacturing technique in the production of high-value industrial components. The industrial problem is defined by a data set relayed through standard sensors situated on a laser-milling centre, which is a machine tool for manufacturing high-value micro-moulds, micro-dies and micro-tools. The new three-phase industrial system presented in this study is capable of identifying a model for the laser-milling process based on low-order models. The first two steps are based on the use of unsupervized connectionist models. The first step involves the analysis of the data sets that define each case study to identify if they are informative enough or if the experiments have to be performed again. In the second step, a feature selection phase is performed to determine the main variables to be processed in the third step. In this last step, the results of the study provide a model for a laser-milling procedure based on low-order models, such as black-box, in order to approximate the optimal form of the laser-milling process. The three-step model has been tested with real data obtained for three different materials: aluminium, copper and hardened steel. These three materials are used in the manufacture of micro-moulds, micro-coolers and micro-dies, high-value tools for the medical and automotive industries among others. As the model inputs are standard data provided by the laser-milling centre, the industrial implementation of the model is immediate. Thus, this study demonstrates how a high precision industrial process can be improved using a combination of artificial intelligence and identification techniques.

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<title>Laser milling: a practical industrial solution for machining a wide variety of materials</title>

Cited by 21 publications

References 13 publications

Laser beam machining—A review

Laser beam machining—A review

Analysis of the machining performance and surface integrity in laser milling of polycrystalline diamonds

Optimizing the operating conditions in a high precision industrial process using soft computing techniques

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