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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.
461

Upsetting of hollow flanged components

Shahmoradi, Seyed Abbas January 1981 (has links)
No description available.
462

In-process quality analysis of laser cutting

Zheng, Hong Yu January 1990 (has links)
No description available.
463

Developing a lean response to interruptions intemperature dependent processes

Lee, Wee Leong January 2002 (has links)
No description available.
464

Indentation of billets in continuous extrusion

Najafi-Sani, A. January 1980 (has links)
No description available.
465

Penetration studies in laser and arc augmented laser welding

Alexander, Jill January 1982 (has links)
No description available.
466

Fine blanking of metals

Najafi-Sani, M. January 1980 (has links)
No description available.
467

The influence of debris on rolling fatigue life

Bhachu, R. S. January 1980 (has links)
No description available.
468

The development of an automatic rib transfer system for fully-fashioned knitwear manufacture

Woodward, Adrian M. January 1982 (has links)
In the manufacture of fully-fashioned knitted outerwear, it is usual for the garment sections to be constructed with a lower rib portion on to which is knitted a fashioned section of plain knitting. The majority of fully fashioned knitting machines are capable of producing only the plain fabric section, the rib portion being knitted separately on V-bed machines. In order to knit the plain section of the garment pieces on to the rib, each loop of the rib must be transferred to a corresponding knitting element on the fully fashioned knitting machine. It is common practice within the knitwear industry to perform this transfer manually, each loop of a slack course in the rib being impaled on to a point of a magazine bar, the excess courses of knitting being unroved as waste. The loops are then transferred from this bar, via a feeding bar on to the knitting elements of the fully-fashioned machine. This manual transfer of the loops is both tedious and expensive in terms of labour. However, there are recently developed machines on the market which will knit the rib and transfer it automatically to a magazine bar but they are both expensive and also render the existing plant obsolete. This thesis describes the concept, design and development of a novel patented automatic rib transfer system which relies on the relatively inexpensive modification of existing V-bed knitting machines. The modifications are aimed at providing a sub-assembly attachment suitable for a variety of V-bed knitting machines. Bars loaded automatically by these modified machines may be fed to any fully-fashioned knitting machine via a specially developed "gauge-changing" device to alter the pitch of the loops from that of the V-bed machine to that of the fully-fashioned machine. These automatically loaded bars may also be used to feed either a modern semi-automatic "linking system", such as the Boehringer Autolinker, or, in certain cases a conventional linking dial. NOTE. The term 'rib transfer' is used in the context of this thesis to describe the operation of transferring a knitted rib from a V-bed knitting machine to a straight bar knitting machine.
469

Process optimisation in the squeeze casting of zinc-aluminium alloys and composites

Begg, John January 1992 (has links)
Squeeze casting is a process which has the potential to produce castings with exceptional mechanical properties. It also appears to be the most suitable route to produce sound cast metal matrix composites. An investigation was carried out into the squeeze casting of four zinc–aluminium alloys: commercial ZAS (simple eutectic alloy); commercial ZA12 (simple eutectic alloy); commercial ZA27 (peritectic alloy); binary Zn-37Al (solid solution alloy). Although the three commercial alloys can be cast by a variety of conventional gravity and pressure processes it was considered that squeeze casting would produce castings with more homogeneous microstructures and enhanced room temperature properties. The binary Zn-37Al was considered to be a suitable alloy for squeeze casting.
470

Electromagnetic stirring in the continuous casting of molten metal

Ogbogu, S. O. E. January 1986 (has links)
No description available.

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