导语

  

内容提要

  

    本书重点介绍了金属切削过程力学、机床动力学及振动、进给驱动设计和控制、CNC设计原理、传感器辅助加工和数控编程技术等知识。从切削过程力学的基本原理开始，深度讨论了振动及颤振问题；也讨论了数控编程和计算机辅助设计/计算机辅助制造(CAD/CAM)技术。文中还详细介绍了驱动执行机构、反馈传感器的选择、进给驱动系统的建模与控制、轨迹实时生成和插补算法的设计、面向数控系统的误差分析等。每一章都包括从企业实际、设计项目和工作问题中筛选的案例。
    本书特别适合高年级本科生和研究生，以及研发工程师阅读，读者将在这本书中找到一个清楚和彻底的方式来学习金属切削力学的工程原理、机床振动、数控系统设计、传感器辅助加工，以及CAD/CAM技术等。

    优素福·阿尔丁塔斯（Yusuf Altintas），国际制造自动化领域知名学者、教授。Yusuf Altintas教授现任加拿大皇家科学院(RSC)院士、国际生产工程学会(CIRP)主席、加拿大工程院院士、美国机械工程师学会(ASME)和国际制造工程师学会(SME)会士、加拿大英属哥伦比亚大学(UBC)机械工程系终身教授。作为享誉世界的制造领域著名专家，主要研究方向为金属切削、机床振动、控制和虚拟加工等，其著作Manufacturing Automation: Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design, Second Edition被业界广泛使用。他领导的实验室开发了先进加工过程仿真工具(CUT。PRO)、虚拟加工过程仿真工具(MACH*PRO)，  以及开放式模块化数控加工系统(Virtual CNC)，这些产品被全球机械加工领域超过200家公司和研究机构使用。

CHAPTER ONE  INTRODUCTION
CHAPTER TWO  MECHANICS OF METAL CUTTING
  2.1  Introduction
  2.2  Mechanics of Orthogonal Cutting
  2.3  Mechanistic Modeling of Cutting Forces
  2.4  Theoretical Prediction of Shear Angle
  2.5  Mechanics of Oblique Cutting
    2.5.1  Oblique Cutting Geometry
    2.5.2  Solution of Oblique Cutting Parameters
    2.5.3  Prediction of Cutting Forces
  2.6  Mechanics of Turning Processes
  2.7  Mechanics of Milling Processes
    2.7.1  Mechanics of Helical End Mills
  2.8  Analytical Modeling of End Milling Forces
    2.8.1  Mechanistic Identification of Cutting Constants in Milling
  2.9  Mechanics of Drilling
  2.10  Tool Wear and Tool Breakage
    2.10.1  Tool Wear
    2.10.2  Tool Breakage
  2.11  Problems
CHAPTER THREE  STRUCTURAL DYNAMICS OF MACHINES
  3.1  Introduction
  3.2  Machine Tool Structures
  3.3  Dimensional Form Errors in Machining
    3.3.1  Form Errors in Cylindrical Turning
    3.3.2  Boring Bar
    3.3.3  Form Errors in End Milling
  3.4  Structural Vibrations in Machining
    3.4.1  Fundamentals of Free and Forced Vibrations
    3.4.2  Oriented Frequency Response Function
    3.4.3  Design and Measurement Coordinate Systems
    3.4.4  Analytical Modal Analysis for Multi–Degree-of-Freedom Systems
    3.4.5  Relative Frequency Response Function between Tool and Workpiece
  3.5  Modal Testing of Machine Structures
    3.5.1  Theory of Frequency Response Testing
    3.5.2  Experimental Procedures in Modal Testing
  3.6  Experimental Modal Analysis for Multi–Degree-of-Freedom Systems
  3.7  Identification of Modal Parameters
    3.7.1  Global Nonlinear Optimization of Modal Parameter Identification
  3.8  Receptance Coupling of End Mills to Spindle-Tool Holder Assembly
    3.8.1  Experimental Procedure
  3.9  Problems
CHAPTER FOUR  MACHINE TOOL VIBRATIONS
  4.1  Introduction
  4.2  Stability of Regenerative Chatter Vibrations in Orthogonal Cutting
    4.2.1  Stability of Orthogonal Cutting
    4.2.2  Dimensionless Analysis of Stability Lobes in Orthogonal Cutting
    4.2.3  Chatter Stability of Orthogonal Cutting with Process Damping
  4.3  Chatter Stability of Turning Operations
  4.4  Chatter Stability of Turning Systems with Process Damping
    4.4.1  Metal Cutting Forces
    4.4.2  Process Damping Gains Contributed by Flank Wear
    4.4.3  Stability Analysis
  4.5  Experimental Validation
  4.6  Analytical Prediction of Chatter Vibrations in Milling
    4.6.1  Dynamic Milling Model
    4.6.2  Zero-Order Solution of Chatter Stability in Milling
    4.6.3  Multi-Frequency Solution of Chatter Stability in Milling
  4.7  Chatter Stability of Drilling Operations
    4.7.1  Dynamic Drilling Force Model
  4.8  Frequency Domain Solution of Drilling Stability
  4.9  Semidiscrete Time Domain Solution of Chatter Stability
    4.9.1  Orthogonal Cutting
    4.9.2  Discrete Time Domain Stability Solution in Milling
  4.10  Problems
CHAPTER FIVE  TECHNOLOGY OF MANUFACTURING AUTOMATION
  5.1  Introduction
  5.2  Computer Numerically Controlled Unit
    5.2.1  Organization of a CNC Unit
    5.2.2  CNC Executive
    5.2.3  CNC Machine Tool Axis Conventions
    5.2.4  NC Part Program Structure
    5.2.5  Main Preparatory Functions
  5.3  Computer-Assisted NC Part Programming
    5.3.1  Basics of Analytical Geometry
    5.3.2  APT Part Programming Language
  5.4  Trajectory Generation for Computer-Controlled Machines
    5.4.1  Interpolation with Constant Displacement
    5.4.2  Acceleration-Limited Velocity Profile Generation with Constant Interpolation Period
    5.4.3  Jerk-Limited Velocity Profile Generation
  5.5  Real-Time Interpolation Methods
    5.5.1  Linear Interpolation Algorithm
    5.5.2  Circular Interpolation Algorithm
    5.5.3  Quintic Spline Interpolation within CNC Systems
  5.6  Problems
CHAPTER SIX  DESIGN AND ANALYSIS OF CNC SYSTEMS
  6.1  Introduction
  6.2  Machine Tool Drives
    6.2.1  Mechanical Components and Torque Requirements
    6.2.2  Feedback Devices
    6.2.3  Electrical Drives
    6.2.4  Permanent Magnet Armature-Controlled dc Motors
    6.2.5  Position Control Loop
  6.3  Transfer Function of the Position Loop
  6.4  State Space Model of Feed Drive Control Systems
  6.5  Sliding Mode Controller
  6.6  Active Damping of Feed Drives
  6.7  Design of an Electrohydraulic CNC Press Brake
    6.7.1  Hydraulic Press Brake System
    6.7.2  Dynamic Model of Hydraulic Actuator Module
    6.7.3  Identification of Electrohydraulic Drive Dynamics for Computer Control
    6.7.4  Digital Position Control System Design
  6.8  Problems
CHAPTER SEVEN  SENSOR-ASSISTED MACHINING
  7.1  Introduction
  7.2  Intelligent Machining Module
    7.2.1  Hardware Architecture
    7.2.2  Software Architecture
    7.2.3  Intelligent Machining Application
  7.3  Adaptive Control of Peak Forces in Milling
    7.3.1  Introduction
    7.3.2  Discrete Transfer Function of the Milling Process System
    7.3.3  Pole-Placement Control Algorithm
    7.3.4  Adaptive Generalized Predictive Control of Milling Process
    7.3.5  In-Process Detection of Tool Breakage
    7.3.6  Chatter Detection and Suppression
  7.4  Intelligent Pocketing with the IMM System
  7.5  Problems
APPENDIX A  LAPLACE AND z TRANSFORMS
PPENDIX B  OFF-LINE AND ON-LINE PARAMETER ESTIMATION WITH LEAST SQUARES
BIBLIOGRAPHY
INDEX