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Books > Professional & Technical > Mechanical engineering & materials > Engineering skills & trades > Tool making

Analytische Untersuchungen Zur Technologie Der Kugelbearbeitung (German, Paperback): Hubert Buchs Analytische Untersuchungen Zur Technologie Der Kugelbearbeitung (German, Paperback)
Hubert Buchs
R1,849 Discovery Miles 18 490 Ships in 10 - 15 working days

FUr Produkte, die keiner konstruktiven nderung unterlie- gen, die abel' praktisch nicht substituierbar sind, tendiert del' Preis nach unten und die Qualit t stetig nach oben. Del' Fertigungstechnologie kommt dabei eine entscheidende Holle zu, da durch sie beide Faktoren determiniert sind. Die Kugel ist ein solches Produkt. Als geometrischer K5r- per ist sie seit Jahrtausenden bekannt. Seit ca. 300 Jahren werden Marmorkugeln in sogenannten Marmel- odeI' Schusser- mUhlen hergestellt. Poppe /P7/ beschrieb die MUhlen erst- mals 1837. Die SchussermUhle bestand aus einem Schleif- stein, del' konzentrische Hillen besaB und von einem Wasser- rad angetrieben wurde und einer FUhrungsscheibe aus Eichen- holz. Die grob behauenen Steine wurden zwischen FUhrungs- scheibe und Schleifstein in del' Schleif rille allm hlicb rund geschliffen. Die "Untersberger MarmormUhlen" an del' Almbach-Klamm zwischen Salzburg und Berchtesgaden arbeiten seit 1683 nach diesem Prinzip. 1854 beschrieb Dingler /D2/ eine Maschine zum "Schleif en" von Ventilkugeln aus Messing. Sechs Kugeln mit 2" Durch- messer fUr Lokomotivpumpen wurden danach in sechs bis sie- ben Stunden mit hinreichender Genauigkeit gefertigt. Die industrielle Herstellung von Kugeln begann in Deutsch- land mit del' Erfindung del' sogenannten "Kugelfr smaschine" 1883 durch Friedrich Fischer in Schweinfurt. Am 17.7.1890 wurde das Verfahren patentiert. Das Verfahrensprinzip del' "Kugelfr1l.smaschine" entsprach dem del' SchussermUhlen, wahr- scheinlich ohne daB Fischer dieses Prinzip gekannt hatte. Seit diesel' Zeit wurden die Kugelbearbeitungsmaschinen st ndig verbessert, doch das Verfahrensprinzip ist bis heute erhalten geblieben: die Kugelbearbeitung zwischen konzentrischen Hillen, das SKR-Prinzip.

Beanspruchung von Napf-Ruckwarts-Fliesspressmatrizen aus Keramik Infolge Mechanischer Belastung und Temperatureinwirkung... Beanspruchung von Napf-Ruckwarts-Fliesspressmatrizen aus Keramik Infolge Mechanischer Belastung und Temperatureinwirkung (German, Paperback)
Winfried Nester
R1,848 Discovery Miles 18 480 Ships in 10 - 15 working days
Hydrostatisches Fliesspressen von Profilen unter Verwendung von Matrizen mit Stetigem Ubergang (German, Paperback): Suwandi... Hydrostatisches Fliesspressen von Profilen unter Verwendung von Matrizen mit Stetigem Ubergang (German, Paperback)
Suwandi Sugondo
R1,842 Discovery Miles 18 420 Ships in 10 - 15 working days

Die vielseitigen Moglichkeiten, die das FlieBpressen als Umformverfahren fur die Formgebung von Metallen bietet, fuhrten bei steigenden Anspruchen der Abnehmer hinsichtlich der MaBgenauigkeit, Werkstoffausnutzung sowie der Breite des Formenspektrums zu immer komplizierteren Werkstucken. Die Forderungen nach neuen, komplexeren Profilformen und groBeren Querschnitts- anderungen hat ten immer groBere PreBkrafte zur Folge, woraus eine sehr hohe mechanische Belastung der Werkzeuge resultiert. Nach DIN 8583 zahlt das FlieBpressen zur Gruppe der Durchdruckverfahren und wird in die Untergruppen FlieBpressen mit starren Werkzeugen und FlieB- pressen mit Wirkmedien eingeteilt, wobei bei dem letztgenannten Verfahren das Werkstuck durch Einwirkung eines Druckmediums durch die Matrize ge- druckl wird. In Bild list das Prinzip der FlieBpreBverfahren dargestellt. Das hydrostatische FlieBpressen ist eines von mehreren Verfahren, die eine wesentliche Verringerung des Kraftbedarfs ermoglichen und demzufolge zu einer Verringerung der mechanischen Belastung der Werkzeuge fuhren. Durch den Wegfall der Reibung zwischen Rohteil und Aufnehmerwand sowie durch die Bildunq gunstiger Schmierungsbedingungen zwischen Werkstuck und Matrize werden die Reibungsverluste vermindert, was beim Pressen von Pro- filen mit im Verhaltnis zur Profilquerschnittsflache groBem Profilumfang (groGe Reiblange) besondere Vorteile bietet. Die seitliche Abstutzung des Rohteils verhindert dessen Aufstauchen, und es konnen Rohteile mit belie- big groGem Langen/Durchmesser-Verhaltnis (lo/d ) gepreBt werden.

Untersuchung der Spanenden Bearbeitung von Knochen (German, Paperback): Alfred Fuchsberger Untersuchung der Spanenden Bearbeitung von Knochen (German, Paperback)
Alfred Fuchsberger
R2,217 Discovery Miles 22 170 Ships in 10 - 15 working days

Die vorliegende Arbeit entstand wahrend meiner Tiitigkeit als akademischer Rat. a.Z. am Lehrstuhl fUr Werkzeugmaschinen und Betriebswissenschaften der Technischen Universitat Miinchen. Herrn Prof. Dr.-lng. Karl G. MUller, unter dessen Leitung die Arbeit be gann, m&hte ich fUr das Interesse und die kritische Durchsicht der Arbeit danken. Herrn Prof. Dr.-lng. Joachim Milberg, dem Leiter dieses Lehrstuhls, m&hte ich fUr die stete Forderung und die wertvollen Hinweise zur Erstellung dieser Arbeit danken. Des weiteren danke ich Herrn Prof. Dr. med. Wolf MUller-Limmroth, dem Leiter des Lehrstuhls fUr Arbeitsphysiologie, fUr die aufmerksame Durchsicht der Arbeit und die Ubernahme des Korreferates. Mein besonderer Dank gilt Herrn Prof. Dr. med. habil., Dr.-Ing. Michael UngethUm fUr die Anregung zu dieser Arbeit, fUr die wertvollen Hinweise und fUr die stets groBzUgige UnterstUtzung der Untersuchungen. Ebenso bin ich der Fa. Aesculap AG, Tuttlingen, die die chirurgischen Gerate und die Versuchswerkzeuge zur VerfUgung stellte, zu Dank verpflichtet. Weiterhin danke ich allen Industriefirmen und LehrstUhlen der TU und LMU MUnchen fUr die Be reitstellung von MeBgeraten, Versuchswerkzeugen, Rechenprogrammen und wichtigen medizinischen Informationen, allen Mitarbeiterinnen und Mitarbeitern des Lehrstuhls, die mich bei dieser Arbeit unterstUtzten, den vielen Studenten, die im Rahmen ihrer Studienarbeit bei der DurchfUh rung der Untersuchungen mitgeholfen haben."

Culture of Stone - Sacred and Profane Uses of Stone Among the Dani (Hardcover): O.W."Bud" Hampton Culture of Stone - Sacred and Profane Uses of Stone Among the Dani (Hardcover)
O.W."Bud" Hampton
R2,389 R1,760 Discovery Miles 17 600 Save R629 (26%) Ships in 12 - 19 working days

When O. W. "Bud" Hampton made his first visit to the peoples in remote parts of the Highlands of Irian Jaya in 1982 and 1983, he found that their ancient stone-based technologies and culture remained virtually intact. During repeated and extended visits over twelve years, Hampton had unparalleled and irreproducible opportunity to observe the development, use, and cultural meaning of stone tool assemblages in their traditional contexts. In this unique study, Hampton describes the complete cultural inventory of both secular and sacred stones, ranging from utilitarian stone tools and profane symbolic stones through symbolic spirit stones, power stones with multiple functions, and medicinal power stone tools, as they were being used in the culture of this long-isolated people. Hampton portrays the complete cycle of quarrying, manufacture, trade, and uses of the stones. Specific archaeological questions are addressed in the context of a culture that provides the answers: What stimulates production? How are tool and symbolic stones manufactured? What is the role of women in quarrying and production? What kinds of trade mechanisms are at work? Are the distributions of stone tool types reliable language and cultural boundary markers? How are sacred stones created and what are their uses? The answers contain rosetta stones of information for worldwide application. Hampton examines the complexities of the Highlanders' unseen spirit world and its symbiotic relationship with the world of the seen. The dual worship of ancestor spirits and the sun within the same belief system is described, with all of the attendant material props. This extensively illustrated, carefully documented, holistic ethnography presents a detailed study of rarely observed behavior associated with traditional stone tools and sacred objects practiced by living people within their integrated society. Archaeologists, anthropologists, other scholars, as well as inquisitive general readers will find Culture of Stone: Sacred and Profane Uses of Stone among the Dani a valuable contribution not only to the ethnography of the New Guinea highlands but to archaeology and anthropology in general.

Early Microlithic Technologies and Behavioural Variability in Southern Africa and South Asia (Paperback): Laura Lewis Early Microlithic Technologies and Behavioural Variability in Southern Africa and South Asia (Paperback)
Laura Lewis
R2,834 Discovery Miles 28 340 Ships in 10 - 15 working days
British Saws and Sawmakers from 1660 (Paperback): Simon Barley British Saws and Sawmakers from 1660 (Paperback)
Simon Barley
R2,305 Discovery Miles 23 050 Ships in 10 - 15 working days

Historians of the various tools trades have long wanted a work specifically on saws and this, the first, is an attempt to match the detail and scholarship of the best that cover planes, cutlery, spanners and measuring tools. The author is a frequent writer and lecturer on saws and the history of their manufacture, and is able to base his work on 15 years of original research and the building of a personal collection of saws - probably the largest in the world - which is housed with the renowned Ken Hawley Collection in Sheffield's Kelham Island Industrial Museum. Together, these collections form a unique research base and visitor attraction. This scholarly book is illustrated with almost 2000 photographs, the majority by the author, and with its listings of saw makers and dealers forms the most comprehensive directory to date of British names in the tool trades.

Early European Decorated Tools (Hardcover, New): Jonathan Green-Plumb Early European Decorated Tools (Hardcover, New)
Jonathan Green-Plumb
R953 R810 Discovery Miles 8 100 Save R143 (15%) Ships in 9 - 17 working days

This publication is a survey of European hand tools, from various woodworking and other trades, dating from the 16th century to the 19th century. The tools that are illustrated and analysed were either made decoratively or received surface decoration, often incorporating ancient symbols, dates and owners initials. Although all the tools featured were made to be primarily functional, the focus of the book is on the aesthetic qualities that transform such tools into examples of genuine folk art. Planes, braces, axes, compasses, saws and chisels, etc, are featured, including many that have not been previously recorded or published. The tools presented, via photographs, drawings and paintings have been sourced from various national museums across Europe and from private collections too.

Slipjoints My Way - A complete method of making a slipjoint folder from raw materials all the way to the finished knife.... Slipjoints My Way - A complete method of making a slipjoint folder from raw materials all the way to the finished knife. (Paperback)
Don Robinson
R844 Discovery Miles 8 440 Ships in 10 - 15 working days

A complete method of making a slipjoint folder from raw materials all the way to the finished knife. The stock removal method is utilized. 90 pages of detailed photos and descriptions of every step involved. This book includes a design for a simple slipjoint folder.

From Tool Use to Site Function - Use-wear analysis in some Final Upper Palaeolithic sites in the Basque country (Paperback):... From Tool Use to Site Function - Use-wear analysis in some Final Upper Palaeolithic sites in the Basque country (Paperback)
Jesus Emilio Gonzalez Urquijo, Juan Jose Ibanez Estevez
R2,120 Discovery Miles 21 200 Ships in 10 - 15 working days

Subtitled 'use-wear analysis in some Final Upper Palaeolithic sites in the Basque country' this study discusses tool function using evidence from two sites in Northern Spain, Santa Catalina and Berniollo. Firstly the methodology used is clearly presented. Then the finds are categorised and their characteristics used to conjecture the action carried out with the tool and the material they were used to work on. Finally this information is used to discuss the assemblage of economic activities which took place in each settlement.

Non-Flint Stone Tools and the Palaeolithic Occupation of the Iberian Peninsula (Paperback): N. Moloney, Luis Raposo, M. Santonja Non-Flint Stone Tools and the Palaeolithic Occupation of the Iberian Peninsula (Paperback)
N. Moloney, Luis Raposo, M. Santonja
R1,962 Discovery Miles 19 620 Ships in 10 - 15 working days
The Taxonomy of Ground Stone Woodworking Tools (Paperback): Quentin Mackie The Taxonomy of Ground Stone Woodworking Tools (Paperback)
Quentin Mackie
R1,425 Discovery Miles 14 250 Ships in 10 - 15 working days

A multivariate study of approximately 1,500 ground stone tools (celts) from the Coast Salishan cultural area of British Columbia, Canada, forms the basis of this book. The traditional and often unthinking quest to find types within this largely unclassified class of material formed the starting point to the author's work. When statistical methods failed to discriminate betweenn typological groups, Mackie was forced to think more creatively about the behavioural environment of their use., especially how use-life would alter shape. This book is therefore both a study of stone tools and an exploration into archaeological systematics which problematises the manic classificatory zeal which is such a peculiar feature of most archaeologists.

Maquinas Y Herramientas De Dibujo / Machines and Tools for Drawing (Spanish, Paperback): Juan J. Gomez Molina Maquinas Y Herramientas De Dibujo / Machines and Tools for Drawing (Spanish, Paperback)
Juan J. Gomez Molina
R1,194 Discovery Miles 11 940 Ships in 12 - 19 working days
Les industries a bifaces de l'Europe du Nord-Ouest au Pleistocene moyen - L'apport des donnees des gisements du... Les industries a bifaces de l'Europe du Nord-Ouest au Pleistocene moyen - L'apport des donnees des gisements du bassin de la Somme, de l'Escaut et de la Baie de St-Brieuc (French, Paperback)
Agnes Lamotte
R1,578 Discovery Miles 15 780 Ships in 10 - 15 working days

This thesis looks at bifacial lithic industries in the Somme basin and the Escaut basin on the border of France and Belgium. A discussion of the general context of the Middle Pleistocene and its Acheulean industries precedes the evidence from the case studies. The different techniques of manufacture and a typology of different forms are described and comparisons are made between different assemblages, with a general synthesis at the end.

Alfred Herbert Ltd and the British Machine Tool Industry, 1887-1983 (Hardcover, New Ed): Roger Lloyd-Jones, M.J. Lewis Alfred Herbert Ltd and the British Machine Tool Industry, 1887-1983 (Hardcover, New Ed)
Roger Lloyd-Jones, M.J. Lewis
R4,636 Discovery Miles 46 360 Ships in 12 - 19 working days

At the beginning of the twentieth century Britain was amongst the world leaders in the production of machine tools, yet by the 1980s the industry was in terminal decline. Focusing on the example of Britain's largest machine tool maker, Alfred Herbert Ltd of Coventry, this study charts the wider fortunes of this vital part of the manufacturing sector. Taking a chronological approach, the book explores how during the late nineteenth century the industry developed a reputation for excellence throughout the world, before the challenges of two world wars necessitated drastic changes and reorganisations. Despite meeting these challenges and emerging with confidence into the post-war market place, the British machine tool industry never regained its pre-eminent position, and increasingly lost ground to foreign competition. By using the example of Alfred Herbert Ltd to illuminate the broader economic and business history of the British machine tool industry, this study not only provides a valuable insight into British manufacturing, but also contributes to the ongoing debates surrounding Britain's alleged decline as a manufacturing nation.

Cutting Tools (Hardcover): R. Edwards Cutting Tools (Hardcover)
R. Edwards
R4,926 Discovery Miles 49 260 Ships in 12 - 19 working days
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