Military logistics is a complex process where response times, demand uncertainty, wide variety of material references, and cost-effectiveness are decisive for combat capability. The demanding flexibility can only be achieved by improving supply chain management (SCM) to minimize lead times. To cope with these requirements, lean thinking extended military organizations. This research justifies proposes the use methodologies improve processes case study unit. In particular, article presents...

Both an accurate machine design and adequate metrology loop definition are critical factors when precision positioning represents a key issue for the final system performance. This article discusses error budget methodology as advantageous technique to improve measurement accuracy of 2D-long range stage during its phase. The nanopositioning platform NanoPla is here presented. Its specifications, e.g., XY-travel 50 mm × sub-micrometric accuracy; some novel designed solutions, three-layer...

The objective of precision systems design is to obtain machines with very high and totally predictable work-zone accuracies. In already functional systems, where the errors can be measured, this achieved by error correction compensation. aim work propose an uncertainty budget methodology final measuring precise after case study a nanopositioning platform, referred as NanoPla, confocal sensor integrated instrument. NanoPla performs positioning in large range 50 mm × mm, its target surface...

The dimensional verification of miniaturized components with 3D complex geometries is particularly challenging. Computed Tomography (CT) can represent a suitable alternative solution to micro metrology tools based on optical and tactile techniques. However, the establishment CT systems' traceability when measuring still an open issue. In this work, method for measurement uncertainty assessment by using presented. micro-CT system Maximum Permissible Error (MPE) estimation, determined...

To address mass customisation demand trends, assembly line flexibility and productivity are critical. Industry 4.0 technologies could support operations to this end. However, clear implementation methodologies still lacking. This article presents two models for evaluating the most relevant Key Performance Indicators (KPIs) of manual or semi-automatic lines, allowing maximise return investment any digital technology addition. MATLAB® was used implement a parametric model, FlexSim® employed...

In this paper, a six-degree-of-freedom analog tactile probe with new, simple, and robust mechanical design is presented. Its based on the use of one elastomeric ring that supports stylus carrier allows its movement inside cubic measuring range ±3 mm. The position tip determined by three low-cost, noncontact, 2D PSD (position-sensitive detector) sensors, facilitating wider application to different systems compared commercial ones. However, several software corrections, regarding size...

Among the multiple factors influencing accuracy of Computed Tomography measurements, surface extraction process is a significant contributor. The location for metrological applications generally based on definition gray value as characteristic similarity to define regions interest. A different approach perform detection or discontinuity gradient. In this paper, an adapted 3D Deriche algorithm gradient information presented and compared with previously developed Canny types. Both algorithms...

Military logistics is a complex process where response times, demand uncertainty, high variety of material references and cost effectiveness turn decisive for combat capability. Considered as the bridge between deployed forces industrial base that provides materials services needed to accomplish their mission, capacity efficiency delivery are required its processes. The flexibility could only be achieved by improving Supply Chain Management (SCM) in order optimize lead times. To cope with...

A two-dimensional (2D) nanopositioning platform stage (NanoPla) is in development at the University of Zaragoza. To provide a long travel range, actuators NanoPla are four Halbach linear motors. These motors present many advantages precision engineering, and they custom made for this application. In work, one-dimensional (1D) control strategy positioning motor has been developed, implemented, experimentally validated. The chosen hardware commercial Digital Motor Control (DMC) Kit from Texas...

Mass customisation demand requires increasingly flexible assembly operations. For the in-plant logistics of such systems, milkrun trains could present advantages under high variability conditions. This article uses an industrial study case from a global white-goods manufacturing company. A discrete events simulation model was developed to explore performance multi-model lines using set operational and Key Performance Indicators. Four scenarios analyse separate effects increased number...

Healthcare services and institutions are focused on providing the most appropriate medical service in terms of patient safety satisfaction outcomes. According to Lean methodologies, effectiveness efficiency can be improved by assuring value-added processes. This article presents a joint approach for development implementation techniques combined with Total Laboratory Automation (TLA) serology diagnosis microbiology laboratory tertiary-level hospital. The results obtained show an improvement...

This article presents a self-calibration procedure and the experimental results for geometrical characterisation of 2D laser system operating along large working range (50 mm × 50 mm) with submicrometre uncertainty. Its purpose is to correct geometric errors setup generated when positioning two heads plane mirrors used as reflectors. The non-calibrated artefact in this commercial grid encoder that also measuring instrument. Therefore, allows determination encoder, including its squareness...

Abstract Different systems are recently developed to obtain effective positioning at nanometer scale with increased working ranges. For this purpose, a two-dimensional nanopositioning platform (NanoPla) has been design and manufactured. To assure the demanding metrological performance drive control system is being defined validated. Based on four home-made linear motors as actuators, work focused study of control-loop for 1D- 2D-cases aim preliminary modelling posterior implementation. The...

A novel nanopositioning platform (referred as NanoPla) in development has been designed to achieve nanometre resolution a large working range of 50 mm × mm. Two-dimensional (2D) movement is performed by four custom-made Halbach linear motors, and 2D laser system provides positioning feedback, while the moving part levitating unguided. For control hardware, this work proposes use commercial generic solution, contrast other systems where hardware software are specifically for that purpose. In...

The nanotechnology field has been developing strongly in recent years and ultra-precision measuring systems are nowadays required. A new two-dimensional moving platform with 50x50 mm range of travel, nanometer resolution sub micrometer accuracy is being designed by the authors order to be integrated an Atomic Force Microscope (AFM). In this work definition, design experimental characterization a homing sensor system for 2D presented. will allow generation absolute reference on X-Y axis θz,...

This article describes a metrological, robotic hand to manipulate and measure micrometer size objects. The presented work demonstrates not only assembly operations, but also positioning control metrology capability. Sample motion is achieved by commercial stage, which provides XYZ-displacements for of components. A designed manufactured gripper tool that incorporates 21 degrees-of-freedom independent alignment actuators, sensors, the three fingers this presented. These can be opened closed...

Surface characterisation has always been an important aspect in quality control for industrial parts. With the development of additive manufacturing (AM) technologies and design freedom they provide, new measuring techniques have become necessary inspection inner elements hidden surfaces. X-ray computed tomography (XCT) potential this purpose. Its performance surface studied mainly metallic AM due to its extended use products; however, it is not possible directly extend knowledge polymeric...

This article provides a starting point for developing methodology to successfully implement Industry 4.0 technology assembly operations. It presents novel multi-layer human-centred conceptual model in line with Lean philosophy which identifies the operator functions and relates them other production departments, identifying how they would be affected by incorporating new digital technologies. The shows that operators only directly supported hardware technologies, while support departments...

A 2D-platform stage able to obtain an effective metrological positioning with nanometer resolution and long working range (50 x 50 mm2) is on development at the University of Zaragoza. The 2D has already been designed, manufactured assembled. movement platform performed by four custom-made linear motors, mirror laser interferometers work as sensors in XYRz degrees freedom. here presented focuses hardware implementation motor control, for one actuator a 1D stage. developed control strategy...

The novel nanopositioning platform (NanoPla) that is in development at the University of Zaragoza has been designed to achieve nanometre resolution a large working range 50 mm × mm. 2D movement performed by four custom-made Halbach linear motors and laser system provides positioning feedback, while moving part levitating unguided. As control hardware, this work proposes use commercial solution, contrast other systems, where hardware software were specifically for purpose. In previous...

The nanotechnology field has been developing strongly in recent years and ultra-precision measuring systems are nowadays required. A new two-dimensional moving platform with 50x50 mm range of travel, nanometer resolution sub micrometer accuracy is being designed by the authors order to be integrated an Atomic Force Microscope (AFM). In this work definition, design experimental characterization a homing sensor system for 2D presented. will allow generation absolute reference (X-Y axis θz...