Bøger af Stephen P. Radzevich

This book presents the latest accomplishments in Novikov/conformal gearing as well as high-conformal gearing.  It is focused primarily on strength calculation of gear teeth and the manufacturing of gears for Novikov/conformal and high-conformal gearing along with a brief discussion of achievements in the modern theory of gearing. The modern theory of gearing is the foundation of all optimal designs of gears, gear-sets, and transmissions of all known designs, as well as, of all those to be developed in the future. As even a small improvement in efficiency on a single gear can represent a significant cost saving, given the millions of gears used in industry every year, this volume provides the design and manufacturing engineer in invaluable resource.

Many products are designed with aesthetic sculptured surfaces to enhance their appearance, an important factor in customer satisfaction, especially for automotive and consumer electronics products. In other cases, products have sculptured surfaces to meet functional requirements. Functional surfaces interact with the environment or with other surfaces. Because of this, functional surfaces can also be called dynamic surfaces. Functional surfaces do not possess the property to slide over itself, which causes significant complexity in machining of sculptured surfaces. The application of multiaxis numerically controlled (NC) machines is the only way for an efficient machining of sculptured surfaces. Reduction of machining time is a critical issue when machining sculptured surfaces on multiaxis NC machines. To reduce the machining cost of a sculptured surface, the machining time must be as short as possible. Table of Contents: Introduction / Analytical Representation of Scupltured Surfaces / Kinematics of Sculptured-Surface Machining / Analytical Description of the Geometry of Contact of the Sculptured Surface and of the Generating Surface of the Form-Cutting Tool / Form-Cutting Tools of Optimal Design / Conditions of Proper Sculptured-Surface Generation / Predicted Accuracy of the Machined Sculptured Surface / Optimal Sculptured-Surface Machining

He then transitions from differential geometry of surfaces to engineering geometry of surfaces, and examines how part surfaces are either machined themselves, or are produced by tools with surfaces that are precisely machined.

This book presents approaches for optimal machining of part surfaces on machine tools, especially of sculptured part surfaces on a multi-axis numerical control (NC) machine. The approach is based on fundamental results of the research obtained in two main areas: in differential geometry (DG) of surfaces, and in kinematics (K) of rigid body in three-dimensional Euclidian space E3. Commonly referred to as DG/K-based method of part surface generation, this method is an extremely powerful tool for solving a plurality of problems in mechanical/manufacturing engineering.

Presents the DG/K-based method of surface generation, a novel and practical mathematical method for designing gear cutting tools with optimal parameters. This book proposes a scientific classification for the various kinds of the gear machining meshes, discussing optimal designs of gear cutting tools.