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Control of Uncertainty in High Precision Cutting Processes: Reaming of Valve Guides in a Cylinder Head of a Combustion Engine

Bölling, Christian and Güth, Sebastian and Abele, Eberhard (2015):
Control of Uncertainty in High Precision Cutting Processes: Reaming of Valve Guides in a Cylinder Head of a Combustion Engine.
In: Proceedings of the 2nd International Conference on Uncertainty in Mechanical Engineering II, November 19th–20th, 2015, Darmstadt, Trans Tech Publications, Switzerland, pp. 153-161, 807 of Applied Mechanics, ISSN 1660-9336, [Article]

Abstract

In production processes uncertainty has a great impact on the product quality as well as production costs. In automotive industry the reaming of valve guides in a cylinder head of a combustion engine is a quality determining process. Due to the force fitting of the valve guides into the cylinder head the final reaming process has to deal with increased uncertainty. On the other hand, the finished hole is closely tolerated. To ensure the process reliability the admissible tolerance must be strictly met even in case of uncertainty. This paper presents a possibility to achieve process reliability by a modified process chain with an additional pilot reaming tool. Thereby, the effect of different cutting edge preparation is also analyzed. Further, the influence of the pilot reamer geometry on the final hole quality is investigated.

Item Type: Article
Erschienen: 2015
Creators: Bölling, Christian and Güth, Sebastian and Abele, Eberhard
Title: Control of Uncertainty in High Precision Cutting Processes: Reaming of Valve Guides in a Cylinder Head of a Combustion Engine
Language: English
Abstract:

In production processes uncertainty has a great impact on the product quality as well as production costs. In automotive industry the reaming of valve guides in a cylinder head of a combustion engine is a quality determining process. Due to the force fitting of the valve guides into the cylinder head the final reaming process has to deal with increased uncertainty. On the other hand, the finished hole is closely tolerated. To ensure the process reliability the admissible tolerance must be strictly met even in case of uncertainty. This paper presents a possibility to achieve process reliability by a modified process chain with an additional pilot reaming tool. Thereby, the effect of different cutting edge preparation is also analyzed. Further, the influence of the pilot reamer geometry on the final hole quality is investigated.

Journal or Publication Title: Proceedings of the 2nd International Conference on Uncertainty in Mechanical Engineering II, November 19th–20th, 2015, Darmstadt, Trans Tech Publications, Switzerland
Volume: 807 of Applied Mechanics
Uncontrolled Keywords: uncertainty, automotive industry, hole finishing, reaming
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Production Management, Technology and Machine Tools (PTW)
16 Department of Mechanical Engineering > Institute of Production Management, Technology and Machine Tools (PTW) > Machining Technology
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 805: Control of Uncertainty in Load-Carrying Structures in Mechanical Engineering
Date Deposited: 23 Nov 2015 14:21
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