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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

A study of emissions during iron ore sintering

Piotr, Markwordt January 2013 (has links)
No description available.
42

Direct and indirect laser sintering of metals

Dewidar, Montasser Marasy A. January 2002 (has links)
Manufacturing functional prototypes and tools using conventional methods usually is a time consuming procedure with multiple steps. The pressure to get products to market faster has resulted in the creation of several Rapid Prototyping (RP) techniques. However, potentially one of the most important areas of Rapid Manufacturing (RM) technology lies in the field of Rapid Tooling (RT). Layer manufacture technologies are gaining increasing attention in the manufacturing sector for the production of polymer mould tooling. Layer manufacture techniques can be used in this potential manufacturing area to produce tooling either indirectly or directly, and powder metal based layer manufacture systems are considered an effective way of producing rapid tooling. Selective Laser Sintering (SLS) is one of available layer manufacture technologies. SLS is a sintering process in which shaped parts are built up layer by layer from bottom to top of powder material. A laser beam scans the powder layer, filling in the outline of each layers CAD-image, and heats the selected powder to fuse it. This work reports the results of an experimental study examining the potential of layer manufacturing processes to deliver production metal tooling for manufacture of polymer components. Characterisation of indirect selective laser sintering and direct selective laser sintering to provide the metal tooling is reported. Three main areas were addressed during the study: mechanical strength, accuracy, and build rate. Overviews of the results from the studies are presented. Two materials (RapidSteel 2.0 and special grade of highspeed steel) and also two generations of SLS machines Sinterstation 2000 and sinterstation research machine, which was constructed in Leeds) were used during this work.
43

An investigation into the problem of measuring the temperature distribution of the rake-face of a cutting tool

Qureshi, A. H. January 1965 (has links)
No description available.
44

Prediction of temperatures in orthogonal machining using finite element method

Murarka, P. D. January 1977 (has links)
No description available.
45

A study of the behaviour of surface roughness during rolling contact

Nagi, H. A. January 1977 (has links)
No description available.
46

Precipitation hardening in sintered iron - 2 to 8% copper alloys

Phadke, Vidyadhar Balvant January 1978 (has links)
No description available.
47

High speed drawing of metals

Baxter, Roger Sydney January 1968 (has links)
No description available.
48

The stability of fixed and floating plugs in the tube drawing process

Jones, R. January 1978 (has links)
No description available.
49

An experimental investigation into the honing process

Wooldridge, D. January 1962 (has links)
No description available.
50

An investigation into some aspects of electrochemical machining processes

Baldwin, G. L. January 1968 (has links)
No description available.

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