当今全球金属精加工行业的整体精加工需求和要求正在发生变化。由于需要更好的零件质量和灵活、更高效、更具成本效益的制造和精加工方法，并与计算机科学相结合，鼓励了利用CNC（计算机数控）机器系统的新的机械化精加工方法。抛光、刷子和抛光技术正在迅速转变为CNC方法，并以最终用户为中心。手工和旧的传统机器加工方法正在逐渐过时。介绍和讨论了涵盖典型精加工系统的大量CNC案例，以帮助展示以下金属加工行业的增长趋势:锁具、管道硬件、手动工具、炊具、灯具、汽车车轮、汽车变速器部件和航空发动机部件。

TODAY'S OVERALL FINISHING NEEDS AND REQUIREMENTS ARE CHANGING IN THE METAL FINISHING INDUSTRY WORLDWIDE. THE NEED FOR BETTER PART QUALITY AND FLEXIBLE, MORE EFFICIENT, AND COST EFFECTIVE MANUFACTURING AND FINISHING METHODS, INTEGRATED WITH COMPUTER SCIENCE, HAS ENCOURAGED NEW MECHANIZED FINISHING APPROACHES UTILIZING CNC (COMPUTERIZED NUMERICAL CONTROLLED) MACHINE SYSTEMS. BUFF, BRUSH, AND POLISH TECHNIQUES ARE RAPIDLY BEING CONVERTED TO CNC METHODOLOGY WITH THE END USER IN MIND. MANUAL AND OLD CONVENTIONAL MACHINE FINISHING METHODS ARE GRADUALLY BECOMING OBSOLETE. NUMEROUS CNC CASE HISTORIES COVERING TYPICAL FINISHING SYSTEMS ARE ILLUSTRATED AND DISCUSSED TO HELP SHOW THE GROWING TREND IN THE FOLLOWING METALWORKING INDUSTRIES: LOCK HARDWARE, PLUMBING HARDWARE, HAND TOOLS, COOKWARE, LIGHT FIXTURES, AUTOMOTIVE WHEELS, AUTOMOTIVE TRANSMISSION COMPONENTS, AND AEROSPACE ENGINE COMPONENTS.