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Träfflista för sökning "LAR1:hh srt2:(2000-2004);srt2:(2003);pers:(Rosén Bengt Göran)"

Sökning: LAR1:hh > (2000-2004) > (2003) > Rosén Bengt Göran

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1.
  • Ohlsson, Robert, et al. (författare)
  • Surface texture knowledge support - ISM
  • 2003
  • Ingår i: Advanced techniques for assessment surface topography. - London : Kogan Page Science. - 9781903996119 - 1903996112 ; , s. 325-337
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • In the recent past there has been a step change in manufacturing strategies and technologies primarily as a result of globalisation and extreme pressure on increasing competitiveness. To be competitive and maintain profit in such a dynamic environment, a manufacturing enterprise must be capable of adjusting quickly to the market. This has lead to the emergence of a new manufacturing strategies such as agile manufacturing, where multiple companies co-operate under flexible virtual enterprise structures. The main purpose of AM is to obtain high quality, shortest lead- time, good service at the lowest cost to satisfy customers' requirements. To respond to the market rapidly, companies have to work closely with their suppliers, customers, and partners to shorten the product development lifecycle and to highlight potential problems. Simultaneous requirements of high quality and rapid co-operative business demands effective information and data handling systems. Specifying surface texture for products will have a heavy impact on the cost and function of the final product and consequently becomes a critical factor in AM based product specification.
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2.
  • Ohlsson, Robert, et al. (författare)
  • The interrelationship of 3D surface characterisation techniques with standardised 2D techniques
  • 2003
  • Ingår i: Advanced techniques for assessment surface topography. - London : Kogan Page Science. - 9781903996119 - 1903996112 ; , s. 197-220
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • The objectives and main aim of the work discussed in this chapter is to compare 2D with 3D surface roughness parameters measured on functional surfaces. The functional surfaces provided were automotive cylinder liners, steel sheet product and ball bearings. Tests designed to throw light on the dispersion and variability, when measuring and calculating 2D and 3D parameters, were also carried out. These results indicated the number of measurement needed for a surface to receive a stable mean value for the topography. Additionally, work is discussed which shows the functional relationship between traditional 2D surface parameters and a range of the newly developed 3D parameters. This study allowed a deeper understanding of the functionality of automotive cylinder bores, and empirical wear relationships are proposed. Finally, studies were carried out on sheet steel for the purpose of comparing optical and tactile measurement techniques
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4.
  • Xiao, Li, et al. (författare)
  • A study on the effect of surface topography on rough friction in roller contact
  • 2003
  • Ingår i: Wear. - Amsterdam : Elsevier. - 0043-1648 .- 1873-2577. ; 254:11, s. 1162-1169
  • Tidskriftsartikel (refereegranskat)abstract
    • The friction behaviour of gear teeth in the context of tribology can have a strong effect on housing vibration, noise and efficiency. One of the parameters that greatly influences the friction under certain running conditions is surface roughness. In this work, rough friction was studied in lubricated sliding of roller surfaces, which were manufactured to simulate the real gear surfaces. By examining 3D surface topography of two mating bodies, both surface roughness and its effect on friction behaviour can be studied. In a previous study, a rough-friction test rig has been designed, constructed and initially verified. The types of surfaces involved in this study are ground, shot-peened, phosphated and electrochemically deburred. These rollers were subjected to the same friction testing procedures. Roller surfaces were then examined, and correlation between the topography and the frictional behaviour was analysed. Friction behaviour was interpreted in terms of Stribeck curves (friction coefficient as the function of Hersey parameter (ην/p)). The results showed that electrochemically deburred and certain phosphated surfaces provide lower friction coefficient values which are competitive to fine-ground surfaces in lubricated rolling/sliding contact. © 2003 Elsevier Science B.V. All rights reserved.
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  • Resultat 1-4 av 4

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