Thermal Deformation in Machine Tools

Description

Preface; Abbreviations; Nomenclature; Table for Conversation; 1 Fundamentals in Design of Structural Body Components; 1.1 Necessities and Importance of Lightweighted Structure in Reduction of Thermal Deformation-Discussion Using Mathematical Models; 1.2 First-hand View for Lightweighted Structures with High Stiffness and Damping in Practice; 1.2.1 Axi-symmetrical Configuration-Portal Column (Column of Twin-Pillar Type); 1.2.2 Placement and Allocation of Structural Configuration Entities; References; 2 What Is Thermal Deformation?; 2.1 General Behavior of Thermal Deformation Preface Abbreviations Nomenclature Table for Conversation 1 Fundamentals in Design of Structural Body Components 1.1 Necessities and Importance of Lightweighted Structure in Reduction of Thermal Deformation-Discussion Using Mathematical Models 1.2 First-hand View for Lightweighted Structures with High Stiffness and Damping in Practice 1.2.1 Axi-symmetrical Configuration-Portal Column (Column of Twin-Pillar Type) 1.2.2 Placement and Allocation of Structural Configuration Entities References 2 What Is Thermal Deformation? 2.1 General Behavior of Thermal Deformation 2.2 Estimation of Heat Sources and Their Magnitudes2.2.1 Estimation of Heat Source Position 2.2.2 Estimation of Magnitude of Heat Generation 2.3 Estimation of Thermal Deformation of Machine Tools 2.3.1 Estimation of Thermal Deformation in General 2.3.2 Thermal Deformation Caused by Inner Heat Sources 2.3.3 Thermal Deformation Caused by Both Inner and Outer Heat Sources 2.4 Heat Sources Generated by Chips and Their Dissipation 2.4.1 Mathematical Model of Chips 2.4.2 Thermal Properties of Chips-Equivalent Thermal Conductivity and Contact Resistance 2.4.3 An Example of Heat Transfer from Piled Chips to Machine Tool Structure2.4.4 Dissipation of Chips 2.5 Future Perspectives in Research and Development for Heat Sources and Dissipation References 3 Structural Materials and Design for Preferable Thermal Stability 3.1 Remedies Concerning Raw Materials for Structural Body Components 3.1.1 Concrete 3.1.2 Painting and Coating Materials 3.1.3 New Materials 3.2 Remedies Concerning Structural Configurations and Plural-Spindle Systems 3.2.1 Non-Sensitive Structure 3.2.2 Non-Constraint Structure 3.2.3 Deformation Minimization Structure 3.2.4 Plural-Spindle Systems-Twin-Spindle Configuration Including Spindle-over-Spindle Type3.3 Future Perspectives in Research and Development for Structural Configuration to Minimize Thermal Deformation 3.3.1 Two-Layered Spindle with Independent Rotating Function 3.3.2 Selective Modular Design for Advanced Quinaxial-Controlled MC with Turning Function References 4 Various Remedies for Reduction of Thermal Deformation 4.1 Thermal Deformations and Effective Remedies 4.2 Classification of Remedies for Reduction of Thermal Deformation 4.2.1 Separation of Heat Sources 4.2.2 Reduction of Generated Heat4.2.3 Equalization of Temperature Distribution 4.2.4 Compensation of Thermal Deformations 4.3 Innovative Remedies for Minimizing Thermal Deformation in the Near Future References Appendix A.1 Separation of Heat Sources A.2 Reduction of Generated Heat A.3 Equalization of Temperature Distribution A.4 Compensation of Thermal Deformations A.5 Optimization of Structural Design 5 Finite Element Analysis for Thermal Behavior 5.1 Numerical Computation for Thermal Problems in General 5.1.1 Introduction 5.1.2 Finite Element Method