Papers by Keyword: Combined Processes

Abstract: Basic information and research results of the process combined rolling-extruding have been represented, which have been used to create new energy-saving technologies for obtaining of long deformed semi-finished products of small cross-section. It has been shown that such combined processing technologies may be applicable for the machining of low ductility and low-tech aluminium alloys with high metal yield and high productivity.

Abstract: The release of antibiotic pharmaceutical wastewater has caused a serious environmental problem. In order to provide a better guideline for the antibiotic wastewater treatment, this paper summarizes a critical review on the current biological technologies available for antibiotic wastewater degradation, including aerobic processes, anaerobic processes, anaerobic-aerobic processes, and other combined processes. Furthermore, applications of the antibiotic wastewater biological treatment processes are discussed as well.

Abstract: A new finish mode combination of grinding and electrochemical smoothing executes a finish processes on SKH 51 surface is investigated. In the experiment, a high rotational speed of finish tool produces a better finish. A thin electrode associated with higher current density provides a larger discharge space for a better finish. The design change from a full form finish-tool to a partial finish-tool leads more discharge space, which creates better finishes than full form tool. It is a great contribution that the synchronous finish processes has a high efficiency than the electrochemical smoothing to make the workpiece surface smooth and bright.

Abstract: Novel manufacturing technologies for high-strength structure components of aluminium allow a local modification of material properties to respond to operational demands. Machining and finishing processes for changing material properties like deep rolling or rubbing are to be combined to a single process step. Intention is the controlled modification of the component’s properties by manipulation of its subsurface. For that purpose the essential understanding of interaction mechanisms of the basic processes turning, deep rolling and rubbing is necessary. Influences of tool geometry as well as process parameters on material properties are investigated. The results are to be extended by parameter studies, done by numerical simulation. Combined processes like “turnrolling” or “turn-rub-rolling” will be developed.