Robert Schmitt, Stefan Quinders
This paper describes a tool for simulating the lines of sight of a dedicated measurement system (indoor global positioning system, iGPS) during the use within a cooperating multi-robotic assembly. The tool evaluates the iGPS configuration of such a dedicated measurement system and therefore the declaration of the process capability of a complex assembly system can be estimated. The papers result is a tool which evaluates the iGPS transmitter configuration during the robot movement. The iPGS-signals are monitored and controlled throughout all stages of assembly. The complex challenge to...
TC14 ISMQC 2013
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Carlos Hernández, Rainer Tutsch
Low precision manufacturing processes usually give rise to items that present a high (dimensional) variation. Therefore, when assembling these items special techniques have to be employed to minimize either the resulting stacked variation or the scrap level. However, full inspection (100%) is commonly required. The Statistical Feed-Forward Control Model (SFFCM) divides the system in two to apply iteratively the Statistical Dynamic Specifications Method (SDSM) on small groups of component items that are produced consecutively in a short-time interval. Ina parallel manufacturing configuration,...
TC14 ISMQC 2013
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Maciej Stankiewicz, Jacek Reiner
According to the Guide to the Expression of Uncertainty in Measurement, measurement uncertainty in quality control is especially important, as the measured value determines either the acceptance or rejection of a product. As the coordinate measuring machines are not capable of 100% dimensional quality control, the use of optical methods is growing. The problem here is still the lack of methods for metrological verification. The available regulations and norms are not directly applicable for all optical measurement principles. One example is the laser triangulation method. It has been used in...
TC14 ISMQC 2013
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Lesya Demchuk, Roman Baitsar
Classic intention, which pursues the management of any company – is to improve the quality and competitiveness of its own production, aiming at the end to speed up the receiving of profit. Such an implementation is primarily made possible by optimizing production processes. The manufacturing processes are influenced by various factors that may lead to deviations from the process requirements. Management of processes is needed to counteract such change in the process. Processes that are not managed, can lead to the production of a large number of defective products earlier before the...
TC14 ISMQC 2013
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Jianbo Yu
This paper reviews manifold learning-based multivariate statistical process control (MSPC) in manufacturing processes. Manifold learning is powerful technique in data analysis, pattern recognition, datamining, data visualization, etc. Those algorithms have been used widely in many industrial applications (e.g., image procesing, visual analysis, pattern recognition) and obtains many successes. This paper discusses the current states and new trends of manifold learning-based MSPC to provide a guidance for applications ofmanifold learning in mafacturing process quality control.
TC14 ISMQC 2013
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Ryoshu Furutani, Tsutomu Itabash, Miyu Ozaki
The Coordinate Measuring Machines are recommended to be tested in an adequate time. In the case that the CMM is tested and the unexpected large errors or failure are found, it is difficult how to deal the data just before. So it is necessary to find the large errors or failure as soon as possible. Therefore it is better to test the CMM everyday or every measurement cycle. But this idea is very time consuming. As the most errors happen in the squareness and scale errors, the squareness errors and scale errors are tested every week using two artefacts, e.g. the QuickCheck and Ball Pyramid. The...
TC14 ISMQC 2013
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Krzysztof STEPIEN
At the Kielce University of Technology a new concept of accurate measurements of sphericity deviations of machine parts has been developed. The concept is based upon measurement of roundness profiles in many clearly defined cross-sections of the workpiece. Measurements are performed with the use of typical radial measuring instrument equipped with a unit allowing accurate positioning of the ball. The paper presents results of the verification of the developed concept under industrial conditions.
TC14 ISMQC 2013
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Zbigniew Humienny, Marcin Berta
The paper presents general concept and some examples of the new modules of the application Geometrical Tolerancing that has been consequently developed by the authors for a couple of years to effectively present and disseminate the ISO GPS system fundamental concepts, definitions, interpretations and rules in technicaluniversities and industry. The package structure and main capabilities are shown and discussed through a few screen shoots. The application starts from the main window in which the user can click on one from the 14 tolerancing symbols or any modifier to open the new window with...
TC14 ISMQC 2013
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Ulrich Neuschaefer-Rube, Michael Neugebauer, Thorsten Dziomba, Hans-Ulrich Danzebrink, Ludger Koenders, Harald Bosse
The contribution provides an overview on new developments of standards and measurement methods for 3D-micro- and nanometrology with a focus on recent work at the PTB. These developmentstarget at a reduction of measurement uncertainty of instruments used for dimensional characterization of micro- and nanostructures. The developments in 3D-micrometrology will focus on standards for calibration of micro-CMM, for dimensional micro-CT instrumentation and for microcontour measurement. For different applications in nanometrology calibration standards for unidirectional measurands like 1D-, 2D- and...
TC14 ISMQC 2013
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Liam Blunt, Mohamed Elrawemi, Leigh Fleming, Haydn Martin, Hussam Muhamedsalih, David Robbins
This paper reports on the recent work carried out as part of the EU funded NanoMend project. The project seeks to develop integrated process inspection, cleaning, repair and control systems for thin films on flexible PV film based on CIGS (Copper Indium Gallium Selenide CuIn x Ga (1-x) Se 2 ). These films are fabricated on polymer film by the repeated deposition, and patterning, of thin layer materials using roll-to-roll processes, where the whole film is approximately 3um thick prior to final encapsulation. Current wide scale implementation however is hampered by long-term degradation of...
TC14 ISMQC 2013
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· 2013
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