Papers by Fabien Bourgeois
Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003.
We formulate the probability of succeeding the assembly of two parts, knowing the distributions o... more We formulate the probability of succeeding the assembly of two parts, knowing the distributions of dimensions of the single parts, for uniform and gaussian distributions. We show the optimal relation between part dimension dispersions. We then define the assembly capability from the single parts capabilities; we introduce a rule of thumb to quickly evaluate the assembly capability from the single
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(ISATP 2005). The 6th IEEE International Symposium on Assembly and Task Planning: From Nano to Macro Assembly and Manufacturing, 2005.
Production yield is usually defined as a function of the variability and tolerance interval of pr... more Production yield is usually defined as a function of the variability and tolerance interval of processes, and off-centering (bias) is often neglected. When working in precision assembly, where tolerance intervals are specified in the range of some micrometers, off-centering effects can no longer be neglected. Indeed, the smaller the interval, the more sensitive the yield becomes, inertial tolerancing is a
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Proceedings of the IEEE International Symposium onAssembly and Task Planning, 2003.
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International Precision Assembly Seminar, 2003
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Congres International De Chronometrie, 2004
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(ISATP 2005). The 6th IEEE International Symposium on Assembly and Task Planning: From Nano to Macro Assembly and Manufacturing, 2005.
This paper reports on an initiative which aims at capturing micro-assembly process window data. T... more This paper reports on an initiative which aims at capturing micro-assembly process window data. The idea originated in the EU funded thematic network Assembly-Net. The data is considered to be important for training, education and engineering purposes in industry and universities. The concept of Process Data Sheets is introduced, which is a structured form for capturing the process window data.
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IFIP — International Federation for Information Processing
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IFIP International Federation for Information Processing
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Sixth International Conference on Quality Control by Artificial Vision, 2003
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The reason why microsystems are not economically profitable is that assembly is very expensive, i... more The reason why microsystems are not economically profitable is that assembly is very expensive, if done in small or medium sized batches. We will show that a Flexible Microassembly Cell will allow to assemble small and medium sized batches in an economical way. This cell is based on a high precision robot with an integrated graphic interface that enables the operator to perform step-by-step assembly operations and at the same time saves the parameters used for each action of the process. At a later stage the assembly process can be repeated automatically in a faster way for the remaining microsystems. We will describe the design and operation of the Flexible Microassembly Cell with an example: the assembly of watch plates.
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Assembly Automation, 2004
In this paper, a flexible solution for part feeding in assembly is analysed for its suitability t... more In this paper, a flexible solution for part feeding in assembly is analysed for its suitability to feed small parts with typical dimensions between 0.5 and 5.0 mm. The feeding concept is based on a tooling plate, which vibrates to separate and reorient the parts. A vision system is used to determine the position of parts in a correct orientation. A robot picks these parts and assembles them. The conditions for a successful reorientation of parts are studied. The influence of adhesive forces on the ability to re‐orientate is investigated. A prototype is built to determine empirically the magnitude of the adhesive forces and the influence of these forces on the feeding process.
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IFIP — International Federation for Information Processing
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Papers by Fabien Bourgeois