Production engineering

About: Production engineering is a research topic. Over the lifetime, 2657 publications have been published within this topic receiving 37409 citations.

Process Monitoring in Grinding Using Micromagnetic Techniques

Abstract: In production engineering, the demands on monitoring systems are steadily increasing owing to the automation of machining processes. In the past, the detection of defects was sufficient. Today, the avoidance of any defect is necessary. Therefore, monitoring systems have to be fast and reliable to guarantee zero-defect manufacturing. Most systems monitor acoustic emission (AE), power consumption or forces while machining. Thus, the quality of the workpiece is only indirectly described and the determination of workpiece quality characteristics must be made by metallographical inspections of random samples. These investigations are time-consuming and often destructive. Micromagnetic techniques make fast and non-destructive quality control of ground workpieces possible. For post-process measurements, the magnetic quantities of Barkhausen noise and field strength are used. The sensor systems have been adapted to different applications such as grinding of gears on bearing rings. In this paper the basic principle of this technique and the results of industrial implementation will be presented. A new micromagnetic analysing system will be introduced which can be used for the direct measurement of workpiece quality characteristics while machining. This system uses twelve different magnetic parameters and is a combination of the above mentioned system and an eddy current analysing system. Residual stresses, surface hardness and case hardening depth are measured in-process and can be used for process control. Furthermore, the 100% quality documentation is possible with out any additional post-process measurement. In addition to the measuring principle, first results and examples of automotive applications will be shown.

Encyclopedia of Aluminum and Its Alloys

Abstract: This encyclopedia, written by authoritative experts under the guidance of an international panel of key researchers from academia, national laboratories, and industry, is a comprehensive reference covering all major aspects of metallurgical science and engineering of aluminum and its alloys. Topics covered include extractive metallurgy, powder metallurgy (including processing), physical metallurgy, production engineering, corrosion engineering, thermal processing (processes such as metalworking and welding, heat treatment, rolling, casting, hot and cold forming), surface engineering and structure such as crystallography and metallography.

Engineering method for the integration of modules into fast evolving production systems in the process industry

Abstract: The reduction of the required effort for integration of a module into a production plant is the fundamental aim of modular plant architectures. An essential prerequisite for efficiency is to shift engineering efforts from the classical site-engineering to the engineering of plant modules. In such a scenario, the engineering of the entire system can be subdivided into two separate engineering phases, namely: a) the module supplier engineers and builds the module and b) the plant engineer uses the modules. This article presents an architecture that simplifies the integration of modules into production plants by using an information model — Module Type Package — for transferring and storing necessary engineering results during module-engineering.

Valuation of changeable production systems

Abstract: The introduction of changeable production systems increases the adaptability of factories in an uncertain environment. This paper analyzes the valuation of the economic efficiency of such systems using the real options theory. The developed approach proposes a structured valuation process for selecting options related to production engineering and factory planning. Based on a classification of possible modifications of a production system, options profiles are derived. Considering the existing uncertainty of a company’s environment these profiles may be utilized to identify real options which ought to be included when valuating a technical production system design.