A new approach to investigate relationships between certain instrumentally measured appearance parameters and their visually perceived equivalents in the automotive industry

2014 ◽  
Vol 11 (3) ◽  
pp. 341-350 ◽  
Author(s):  
F. Mirjalili ◽  
S. Moradian ◽  
F. Ameri
2012 ◽  
Vol 498 ◽  
pp. 91-96 ◽  
Author(s):  
J. Gomar ◽  
A. Amaro ◽  
E. Vázquez ◽  
J. Ciurana ◽  
C. Rodríguez

The use of conventional machining processes has been subject to important decline probably due to the increment in the use of emerging technologies. Therefore, the main applications of these traditional processes, such as automotive industry, are in crisis. In order to have a chance to compete successfully in the new trends, the machining industry must meet the needs of alternative sectors such as biomedical field. The aim of this study is to prove the capacity of micro-milling, by machining complex micro-cavities on aluminum workpiece using a conventional milling machine. Results are obtained by evaluating accuracy and geometric features. This study finds that the feed per tooth is a significant factor in order to obtain better results. The use of coolant increases the tool wear and therefore dimensional errors. This scope is a potential opportunity to reutilize the conventional machines from a new approach.


Mechanik ◽  
2018 ◽  
Vol 91 (7) ◽  
pp. 529-531
Author(s):  
Jolanta Krystek ◽  
Sara Alszer ◽  
Szymon Bysko

Presented is the concept of paint shop operation for the automotive industry – Paint Shop 4.0, based on the ideas of Industry 4.0 and Digital Factory. A new approach to the issue of car body sequencing, taking into account the actual structure of the paint shop department with buffers, has been presented. In the created application, proprietary car body sequencing algorithms were implemented.


10.5772/56662 ◽  
2013 ◽  
Vol 5 ◽  
pp. 18 ◽  
Author(s):  
Stefano Biondi ◽  
Armando Calabrese ◽  
Guendalina Capece ◽  
Roberta Costa ◽  
Francesca Di Pillo

The competitive nature of the contemporary business scenario requires productivity-driven organizations to be aware of the efficiency level of their dealers. The recent economic and financial crisis has highlighted the need for effective evaluation methods going beyond the limits of traditional performance assessment methodologies in the retail industry. The automotive industry is no exception to this logic. In this sector, traditional methods are often based only on market share performances, ignoring the key role of input-output ratios on the overall productivity of the parent company. Following this lead, in this paper we propose a method to evaluate the performance of dealerships taking into account both their market share performances and their efficiency. In order to assess dealership efficiency we use the DEA technique, and apply the proposed methodology to a multinational automotive company considering its Italian dealer network.


1988 ◽  
Vol 110 (4) ◽  
pp. 422-429 ◽  
Author(s):  
P. L. Graf ◽  
R. Shoureshi

In an effort to improve passenger comfort, the automotive industry is evaluating more sophisticated techniques to reduce engine excited frame vibrations. A new approach is to implement hydraulic mounts in a semi-active mode. In this mode, low power actuators are used to change the impedance characteristics of the mount. This paper presents a dynamic model and analysis of the semi-active hydraulic mount. Experimental data confirming the mount model are presented. Finally, results of an experimental study on the implementation of the semi-active mounts on a production automotive vehicle are presented. The study focuses on frame vibration reduction during engine idle. The semi-active hydraulic mounts show improved vibration levels over passive hydraulic mounts in the vehicle application.


2019 ◽  
Vol 23 (1) ◽  
pp. 45
Author(s):  
Hana Pačaiová ◽  
Gabriela Ižaríková

<p><strong>Purpose:</strong> IATF 16949:2016 standard requirements do not represent a totally new approach of quality improvement within the automotive industry. The change of the last, from 2009 year ISO/TS), the quality management standard is only an expected consequence of changes, which, in managerial systems, was brought by ISO Organization in 2012 (Annex SL). Implementation of the Total Productive Maintenance (TPM) requires several important steps. The article describes framework of TPM implementation on a basis of PDCA (P-plan; D-do; C-check; A-Act) cycle and evaluates influence of Occupational health and safety pillar (OHS) on the “stability” of TPM house.</p><p><strong>Methodology/Approach:</strong> Individual steps of TPM implementation are analysed and added with suitable tools for making the effective integration of TPM and IATF (which is expansion of ISO 9001:2015).</p><p><strong>Findings: </strong>Implementation of autonomous maintenance and other TPM pillars requires support from management. Although the 5S tool is understood as a basic TPM tool, knowledge from its implementation suggest the fact that 5S is also a significant tool of management integration within organisation.</p><p><strong>Research Limitation/Implication:</strong> Research presented in this article is influenced of the maturity of organisation as well as its size and types of its activities.</p><strong>Originality/Value of paper:</strong> Method of TPM implementation analysis in the conditions of integrated approach with an emphasis on 5S and its relation to OHS management is original approach.


2019 ◽  
Vol 109 (10) ◽  
pp. 722-726
Author(s):  
M. Liewald ◽  
P. Essig ◽  
C. Bolay

Steigende Anforderungen an die Qualität von Außenhautteilen stellen Unternehmen in der Automobilindustrie vor neue Herausforderungen. Eine wichtige Rolle spielt dabei der Werkzeugentstehungsprozess, der von zeitintensiven Schleifarbeiten geprägt ist. Der Beitrag zeigt einen neuartigen Ansatz zur Datenrückführung von Traganteilen bestimmter Wirkflächenzonen in die Umformsimulation durch optische Messtechnik. Damit kann der aktuelle Tryout-Zustand mit der Simulation verglichen werden. &nbsp; Increasing demands on the quality of outer car panels pose new challenges for manufacturing companies in the automotive industry. The tryout process of dies needs special consideration as it is characterized by time-consuming manual grinding operations. This paper focusses on a new approach for data feedback of contact areas into forming simulation by optical measurement technology. This allows for comparing the current tryout state with the forming simulation.


2018 ◽  
Author(s):  
Konstantinos Stylidis ◽  
Casper Wickman ◽  
Rikard Söderberg

Perceived quality (PQ) is one of the most important product attributes in the automotive industry that defines successful automotive design. This paper presents a new approach regarding PQ assessment by examining PQ decomposed into a structure with the top-down approach to the level of basic (“ground”) attributes, covering almost every aspect of car quality perception from the engineering viewpoint. The paper proposes a novel method for PQ attributes relative importance ranking, resulting in the PQ balance of the vehicle, within the given conditions. The proposed method helps to reach the equilibrium of the vehicle’s quality equation from the perspective of design effort, time and costs estimations. The authors introduce the Perceived Quality Framework (PQF), which is the taxonomy system for PQ attributes and the core of the attributes importance ranking method. The research outcomes are based on findings of qualitative exploratory study that includes the European and North American premium and luxury automotive manufacturers. To validate the proposed method, an industrial pilot study was performed with one of the automotive companies to examine the PQ attributes importance ranking obtained from automotive industry professionals. The results can significantly improve PQ assessment during all stages of product development.


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