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This collaborative effort offers a wealth of state-of-the-art practical information on wound rolls
and their defects, while presenting underlying models which help explain the winding process and
its resulting products. Winding Machines and
Measurements describes the various classes and arrangements
of winding machinery commonly employed in the web industries; describes how roll stresses and
roll defects can be predicted by mathematical models; and discusses every important method used
to measure and evaluate roll quality. The accompanying CD-ROM provides an easy-to-run
winding model. Recommended for industrial practitioners and academic researchers alike.
From the Preface: “...[M]odels can only be useful if they are applied. That is one reason for writing
this book. We want you to understand winding defects and even be able to predict them.
Understanding the mechanics of winding is priceless even if you never write an equation or run a model. The
models show you what makes a difference even if you don't have the numbers to quantify the effect. We
will also demonstrate how measurement helps verify the conclusions of the models so that we can
use them with confidence. Most importantly, measurements show us how to judge the quality of a roll.
It is to achieve this end, a quality roll, that we write this book.”
Target Audience: Industrial, quality, and process engineers; machine and process designers;
manufacturing personnel; and other readers concerned with winding and wound rolls.
Table of Contents:
Machines:
Zen and the Art of Winding
Some Winding Defects
Winder Arrangements
Roll Geometry and Properties
Mechanics:
Simple Material Properties
Introduction to Wound Roll Modeling
Simple 1D Winding Models
2D Winding Models and Gauge Variation
The Effect of Nip on Wound Roll Stresses
The Effects of Air Entrainment
The Effects of Moisture and Temperature
Viscoelastic Behavior
Defects Predicted by Winding Models
Dynamic Behavior at High Speeds
Measurement:
Wound Roll Measurement: Introduction
Hardness Measurements
Measurements Based on Interlayer Pressure
Strain-Based Measurements
Density-Based Measurements
Other Wound Roll Measures
Wound Roll Measurement Considerations
WINDaROLL: An Introductory 1D Wound Roll Model Code
Appendices
Index
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