Designing a layout using Schmigalla method combined with software tool vistable

© 2017 DAAAM International Vienna, All Rights Reserved. In this paper, a design of optimal facility layout, for already existing factory, using a Schmigalla method combined with software tool visTABLE for layout modelling and optimization is presented. It is called static facility layout planning. Schmigalla method belongs to heuristic type of methods. These method types should be combined with some other methods or tools. Combination of this method in conceptual phase and software visTABLE for layout modelling and optimization in optimization phase is presented. For real-world industrial application, this particular combination is obtaining significant improvement results. Layout designing was realized on a real production process example with 15 different products. In the first part of the paper, a production process with all the data is presented. After that, in the second part, a theoretical and mathematical model of Schmigalla method as a base for layout modelling was used. Then, in the third part, Schmigalla method layout transformation was practically (virtually) realized with software visTABLE. In the fourth part, after layout realization of a virtual layout model, software visTABLE was additionally used (manually and automatically) for finding an optimal layout solution

An integrated lean approach to Process Failure Mode and Effect Analysis (PFMEA): A case study from automotive industry

© 2016 PEI, University of Maribor. All rights reserved. Every automotive company is using ISO/TS 16949 standard for automotive industry. According to this standard of Process failure mode and effect analysis (PFMEA), is obligatory. Also, the application of lean in automotive industry is a trend nowadays. Both, PFMEA and lean have the same main purpose - identification, prevention, and correction of failures during the production process. But, PFMEA have many shortcomings. In this paper, an integrated lean approach to PFMEA for solving specific shortcomings, is presented. This approach is new and it has not been used until now. Lean approach (tools and principles), were integrated in PFMEA. The new approach to solving PFMEA was presented in algorithm form. Some of those lean tools and principles integrated in PFMEA are: Genchi Genbutsu, Kaizen, standardized work, Jidoka, and 5 why. The approach presented was realized in a case study from automotive industry where traditional approach to PFMEA was compared to the new lean approach integrated to PFMEA. Changed and improved conditions were: number of team members, the actions taken, identification of failures, change of Severity (S), Occurrence (O), detection (D) and risk priority number (RPN) values, reduced S, O, D, and RPN values after taken actions, RPN with value over 100, and S, O, D indexes with value over 8

Extended process failure mode and effect analysis (PFMEA) for the automotive industry: The FSQC-PFMEA

© 2018 PEI, University of Maribor. All rights reserved. This paper mainly addresses constraints of the PFMEA for the automotive industry. The safety and cost aspect are integrated into traditional severity index. Therefore, for this purpose, three new indices are invented - safety severity index; quality severity index and cost severity index. For both safety severity index and cost severity index, new tables with crisp values belong to the interval (1-10) were invented. While for quality severity index was kept traditional severity table for the automotive industry. The relative importance of these three indices is stated by the fuzzy pair-wise comparison matrix. The weights vectors are calculated by applying the extent analyses. In order to overcome these constraints, but to keep traditional framework of the PFMEA for automotive industry, new fuzzy PFMEA with respect to safety, quality and cost (FSQC-PFMEA) is presented. It can be denotes as the main findings of this paper. At last, the proposed model is tested by real-life data which come from one automotive company supplier and compared with traditional way in the case study. Chosen company use IATF 16949 standard for automotive industry and reference manual presented by Automotive Industry Agency Group (AIAG). Therefore, use of the PFMEA is obligated in this company