86 research outputs found
A Framework for Task Sequencing for Redundant Robotic Remote Laser Processing Equipment Based on Redundancy Space Sampling
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On the Stability and Performance of Remote DOE Laser Cutting
Get PDFAbstractWhen considering remote laser cutting, the literature often discusses two methods: remote fusion cutting (RFC) and remote ablation cutting. It has previously been hypothesised that remote cutting can be conducted by modifying the intensity profile of the laser beam by means of a diffractive optical element. In this study, the effect of travel speed, focus offset and angle of incidence on the stability of remote cutting with a customized beam pattern was investigated. The study is based on a set of remote cutting experiments conducted on a 3kW single mode fiber laser in 0.5mm stainless steel. The study showed that remote cutting is obtainable with speeds ranging from 800mm/min-1600mm/min by using an average laser power of 630W. Furthermore, the experimental results showed that the cutting stability remained high for a larger range of incident angles
The validity of activity trackers is affected by walking speed:the criterion validity of Garmin Vivosmart® HR and StepWatch™ 3 for measuring steps at various walking speeds under controlled conditions
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Social support modifies association between forward bending of the trunk and low-back pain:cross-sectional field study of blue-collar workers
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