Sawtooth Forces in Cutting Tropical Hardwoods Native to South America/ Stephen P. Loehnertz; Iris Vazquez Cooz PDF Download
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Author: Stephen P. Loehnertz
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
Author: Stephen P. Loehnertz
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Get Book Here
Book Description
Author: Stephen P. Loehnertz
Publisher:
ISBN:
Category : Hardwood industry
Languages : en
Pages : 16
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages :
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Book Description
Author: Stephen P. Loehnertz
Publisher:
ISBN:
Category : Hardwood industry
Languages : en
Pages : 16
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Book Description
In this study, hardwood sawing technology was identified in five tropical countries: Ghana, Brazil, Venezuela, Indonesia, and Malaysia. The density of wood and presence of silica make it a challenge to saw many tropical hardwoods. The bandsaw is the most commonly used machine and is employed in many sizes and configurations. Sawblade parameters and operating procedures vary according to the nature of the species being sawn and are influenced as much by local custom as technical knowledge of the process. The most commonly reported problems include poor saw maintenance, lack of trained personnel, obsolete equipment, and inadequate sawtooth geometry and wear resistance. Some problems can be addressed by technology transfer, others must be addressed by research.
Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 450
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Book Description
Author: S. P. Verrill
Publisher:
ISBN:
Category : Statistics
Languages : en
Pages : 420
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Book Description
In recent years wood strength researchers have begun to replace experimental unit allocation via random sampling with allocation via sorts based on nondestructive measurements of strength predictors such as modulus of elasticity and specific gravity. Although this procedure has the potential of greatly increasing experimental sensitivity, as currently implemented it can easily reduce sensitivity. In this paper we discuss the problem and we present solutions. Given the existence of nondestructive measurements of strength predictors, our methods can be used to reduce sample sizes. We have written a public domain computer program that implements the methods.
Author: Stephen P. Loehnertz
Publisher:
ISBN:
Category : Hardwood industry
Languages : en
Pages : 11
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Book Description
In this study, hardwood sawing technology was identified in five tropical countries: Ghana, Brazil, Venezuela, Indonesia, and Malaysia. The density of wood and presence of silica make it a challenge to saw many tropical hardwoods. The bandsaw is the most commonly used machine and is employed in many sizes and configurations. Sawblade parameters and operating procedures vary according to the nature of the species being sawn and are influenced as much by local custom as technical knowledge of the process. The most commonly reported problems include poor saw maintenance, lack of trained personnel, obsolete equipment, and inadequate sawtooth geometry and wear resistance. Some problems can be addressed by technology transfer, others must be addressed by research.
Author: Norman Franz
Publisher:
ISBN: 9780472751426
Category :
Languages : en
Pages : 0
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Book Description
In this technical age, wood-machining has largely remained an art for a lack of scientific investigation in this field. An Analysis of the Wood-Cutting Process was prepared to provide a basic understanding of wood-cutting and in particular of parallel-grain wood-cutting. Norman C. Franz is an Associate Professor of Wood Technology in the School of Natural Resources at the University of Michigan. The wood-cutting process is defined in terms of the interactions between wood properties, cutting geometry, and the friction between the chip and the tool. In continuous observations, three basic types of chip were identified--each having generated a related quality of surface. In the analysis of the mechanics of chip formation, the book describes the determination of machining efficiency and surface quality; by demonstrated calculations of optimum cutting angles for given wood properties, an equation is derived for the control of surface quality in wood-cutting.
Author: John C.F. Walker
Publisher: Springer Science & Business Media
ISBN: 1402043937
Category : Technology & Engineering
Languages : en
Pages : 603
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Book Description
This book is primarily a general text covering the whole sweep of the forest industries. The over-riding emphasis is on a clear, simple interpretation of the underlying science, demonstrating how such principles apply to processing operations. The book considers the broad question "what is wood?" by looking at the biology, chemistry and physics of wood structure. Wood quality is examined, and explanations are offered on how and why wood quality varies and the implications for processing. Finally, various "industrial processes" are reviewed and interpreted. All chapters have been written by specialists, but the presentation targets a generalist audience.
