数控技术英语Unit10

Numerical control is a specialized form of automation, specifically, automatic machine tools are programmed to perform an ordered sequence of events at a predetermined rate to produce a piece part with entirely predictable results and physical parameters数控是一种专业的自动化形式,具体的说,自动机床编程,按预定的速率进行一系列有序的事件,从而产生部分完全可预测的结果和物理参数.Control modes: point-to-point, straight line control，two-axis contouring control, three-axis contouring with continuous path control.控制方式：点对点，直线控制，两轴轮廓控制，三轴连续路径轮廓控制。

Piont to point: To reach a desired position all axes independently rapid-travers untill each axis has reached its programmed target value. Clearly no cutting occur during traverse and it commences only when the target position has been reached.点对点：为了达到一个理想的位置，所有的轴独立快速导线测量,除非每个轴已达到设定的目标值。

显然,在导线测量过程和开始之初没有切割发生,只有当目标位置已达到才有切割。

Three contouring with continuous path control三轴连续路径轮廓控制Continuous path control or contouring systems provide accurate spindle positioning at any point in space, all axes are precisely controlled at all times, both individually and in exact relation to each other.连续路径控制、轮廓控制系统提供准确的在任何空间中的点的主轴定位，所有轴在任何时候都精确控制的，无论是单独或相互之间精确关系。

Unit 10Mechanical EngineeringSection APre-reading activitiesI. Skimming and Scanning.Before class, read Text A quickly and find answers to the following questions.1.What does CNC stand for? And what is it?CNC is the acronym for Computer Numerical Control. It refers to the idea of controlling machine tools programmatically via computer.2.What is the difference between CNC and NC?There is no computer involved in NC.3.What are the key ingredients for the growth of CNC?Standard G-Code language for parts program, CAD and minicomputers.4. Which countries are mentioned in the text to show the development of CNC?US, Germany and Japanese.5.What makes CNC controls cheaper ?Microprocessors have made CNC controls cheaper, culminating with the availability of CNC for the hobby and personal CNC market.6.How many kinds of CNC are listed in the text?Three kinds of CNC are listed including CNC machine lathes, CNC milling machines and CNC routers.Text A参考译文计算机数控机床概述及计算机数控史什么叫计算机数控技术?1 CNC是计算机数字控制技术的简称，由较早的“NC”发展而来，NC仅仅表示数字控制。

数控技术专业英文介绍范文English: The CNC technology major is designed to train students in the principles and practical skills of computer numerical control (CNC) machining. Students will learn how to use computer programs to control and operate machines such as lathes, milling machines, and grinders to produce precision parts and components. They will also study topics such as machining strategies, tooling selection, blueprint reading, and quality control. In addition to hands-on experience in CNC programming and machine operation, students will also receive training in CAD/CAM software, CNC equipment maintenance, and troubleshooting techniques. Graduates of this program will be well-equipped to pursue careers in industries such as aerospace, automotive, medical device manufacturing, and more, where precision machining is essential for producing high-quality products.中文翻译: 数控技术专业旨在培养学生掌握计算机数控（CNC）加工的原理和实践技能。

数控专业的英语作文Computer Numerical Control: Revolutionizing Manufacturing.In the realm of manufacturing, computer numerical control (CNC) has emerged as a transformative technology, revolutionizing the way products are designed, produced, and inspected. CNC machines, guided by precise computer instructions, have brought about a quantum leap in efficiency, precision, and automation. This article delves into the multifaceted world of CNC, exploring its history, principles, applications, and impact on modern manufacturing.Historical Origins and Evolution.The roots of CNC can be traced back to the 1940s, when numerical control (NC) machines were developed by John T. Parsons to automate aircraft manufacturing processes. These early NC machines employed punched tapes to storeprogrammed instructions, which controlled the movements of machine tools.In the 1950s and 1960s, the advent of computers led to the development of CNC machines, where computer programs replaced punched tapes. This technological leap enabled more complex and precise control over machine operations, paving the way for increased efficiency and reduced production time.Principles of CNC.CNC machines operate based on a set of principles that enable them to execute precise and automated manufacturing operations:Computer-Aided Design (CAD): CAD software is used to create digital models of products, which are then translated into CNC code.G-Code and M-Code: CNC code, typically in G-code and M-code formats, provides detailed instructions on themovements, speeds, and other parameters of the CNC machine.Controllers: CNC controllers interpret the coded instructions and send commands to the machine motors and actuators, controlling the machine's operations.Feedback Systems: Sensors and encoders provide real-time feedback to the controller, ensuring accurate positioning and control of the machine.Applications of CNC.CNC machines have found widespread applications across various manufacturing industries, including:Aerospace: Precise machining of aircraft components, engine parts, and other critical components.Automotive: Manufacturing of engine blocks, gearboxes, and other automotive parts with high precision and repeatability.Medical: Production of medical implants, surgical instruments, and prosthetic devices with intricate geometries.Electronics: Fabrication of circuit boards, electronic components, and precision electronic devices.Prototyping and Rapid Manufacturing: Rapid prototyping and small-scale manufacturing of prototypes, custom products, and low-volume production runs.Impact on Modern Manufacturing.CNC technology has had a profound impact on modern manufacturing practices, transforming processes and driving innovation:Increased Productivity: Automation reduces human intervention, enabling continuous production and higher throughput.Improved Precision: Computer-controlled machinesachieve extremely high levels of precision, leading to improved product quality and reduced scrap rates.Flexibility and Customization: CNC machines can be easily reprogrammed for different products, allowing for rapid changes in production and customization of products.Reduced Lead Times: Automated production and reduced setup times shorten lead times, enabling faster delivery to customers.Skilled Workforce: CNC technology requires trained operators with specialized skills, fostering a highly skilled workforce.Conclusion.Computer numerical control (CNC) has revolutionized manufacturing by automating processes, improving precision, increasing productivity, and providing flexibility. The integration of CNC technology has transformed the way products are designed, produced, and inspected. Asmanufacturing continues to evolve, CNC will remain a cornerstone technology, enabling manufacturers to meet the demands of the 21st century and beyond.。

数控技术英语作文English:Numerical Control (NC) technology, also known as Computer Numerical Control (CNC), is a revolutionary advancement in manufacturing processes. It integrates computer systems with machinery to control and automate various operations such as cutting, milling, drilling, and shaping of materials with unparalleled precision and efficiency. One of the key components of NC technology is the CNC machine, which operates based on coded instructions programmed into the computer system. These instructions dictate the movements and actions of the machine's tools, allowing for highly accurate and complex manufacturing tasks to be carried out consistently. NC technology has transformed the manufacturing industry by significantly reducing production times, minimizing errors, and enabling the production of intricate components that were previously unattainable. Moreover, CNC machines can be easily reprogrammed to accommodate changes in production requirements, offering manufacturers greater flexibility and adaptability in responding to market demands. With continuous advancements in software and hardware, NC technology continuesto evolve, pushing the boundaries of what is achievable in modern manufacturing processes.中文翻译：数控技术，也称为计算机数控（CNC），是制造过程中的一项革命性进步。

Computerized Numerical Control (CNC)Course title: Computerized Numerical Control (CNC)Code:Credit: 2Lecture Hours: 24OverviewThis course is a compulsory course for students majoring in Mechanical Engineering and Automation. It aims to help students apply the basic operating principle and its application to solve the problems of design and application of CNC machine tool in practical manufacturing. This course provides students with an understanding of the characteristics and classification of CNC device, CNC programming for machining, the interpolation principle and mechanical structure and design of CNC machine tool. Meanwhile, it also strengthens their awareness of the structure of CNC system, servo feeding system and surveying device of CNC machine tool as well as its development and other application fields.Aims and ObjectivesThis course mainly explores technical transformation of CNC machine tools and relevant knowledge of mechanism, electronics and computer technology required by the application of CNC machine tools. On successful completion of this course, students should be able to:*have a positive attitude and develop a critical thinking;*enhance their professional ethics and ability;*link theory with practice and their major;*develop their vocational interest, tough character, good communication skill, team spirit and problem-solving ability;*master the characteristics and classification of CNC device, CNC programming for machining, the interpolation principle and mechanical structure and design of CNC machine tool.*keep abreast of current CNC development and other application fields.Syllabus and Schedule of LecturesTheoretical Teaching:Chapter 1 Introduction1.1 An Introduction of CNC Machine Tool and Its Classification1.2 The Origin and Development of CNC Machine Tool1.3 FMC, FMS and CIMSChapter 2 Programming of CNC Machining2.1 Basis of CNC Programming2.2 Manual Programming2.3 An Introduction of Automatic Programming of CNC MachiningChapter 3 CNC Device and Its Interface3.1 The Hardware Structure of CNC Device3.2 The Software Structure of CNC Device3.3 PLC and Interface Circuit of CNC DeviceChapter 4 Interpolation, Cutter Compensation and Speed Control4.1 Interpolation Principle and Programming4.2 Cutter Radius Compensation, Feed Speed and Acceleration and Deceleration ControlChapter 5 Servo-drive System5.1 Surveying Device, Stepper Motor and Its Driving System5.2 Direct Current Servomotor and Its Speed Control5.3 Alternating Current Servomotor and Its Speed Control5.4 Spindle Drive and Position ControlChapter 6 An Introduction to the Cases of CNC System6.1 An Introduction of Economical CNC System6.2 Advanced Economical CNC System6.3 An Introduction of High-class CNC SystemPractical Training (12 Hours)PrerequisitesElectrical Engineering and Electronic Technique, Programmable Logic Controller (PLC), Basis of Control Engineering, The Test Sensor Technology, Principle of Mechanical Manufacturing Engineering, etc.TextbookDong, Yuhong. Computerized Numerical Control (CNC) (2nd ed.). Higher Education Press, 2012.AssessmentsAssignment (including group work, experiment report, homework and attendance)30% Examination 70%。

数控技术数字化控制技术英文回答：Numerical Control (NC) Technology.Numerical control (NC) technology is a method of controlling machine tools and other industrial machinery by using a computer program. This program contains the instructions for the machine, including the position of the cutting tool, the speed of the spindle, and the feed rate. The program is loaded into the machine's computer, which then executes the instructions.NC technology is used in a wide variety of industries, including aerospace, automotive, and medical. It is used to manufacture a wide range of products, including aircraft parts, car parts, and medical devices.Advantages of NC Technology.NC technology offers a number of advantages over manual control. These advantages include:Increased accuracy: NC machines can produce parts with a high degree of accuracy. This is because the machine is controlled by a computer program, which eliminates human error.Increased speed: NC machines can operate at high speeds, which can reduce production time.Reduced labor costs: NC machines can be operated by a single operator, which can reduce labor costs.Improved quality: NC machines can produce parts with a consistent quality, which can reduce scrap rates.Disadvantages of NC Technology.NC technology also has some disadvantages. These disadvantages include:High cost: NC machines can be expensive to purchase and maintain.Complexity: NC machines can be complex to operate, which can require specialized training.Limited flexibility: NC machines are only able to perform the tasks that are programmed into them.Digital Control Technology.Digital control technology is a type of NC technology that uses digital signals to control the machine. This type of technology is more precise and reliable than analog control technology, which uses analog signals to control the machine.Digital control technology is used in a wide variety of industries, including aerospace, automotive, and medical.It is used to manufacture a wide range of products, including aircraft parts, car parts, and medical devices.Advantages of Digital Control Technology.Digital control technology offers a number of advantages over analog control technology. These advantages include:Increased accuracy: Digital control technology is more precise than analog control technology. This is because digital signals are more accurate than analog signals.Increased speed: Digital control technology can operate at higher speeds than analog control technology. This is because digital signals can be transmitted faster than analog signals.Reduced noise: Digital control technology produces less noise than analog control technology. This is because digital signals are less susceptible to noise than analog signals.Disadvantages of Digital Control Technology.Digital control technology also has some disadvantages. These disadvantages include:Higher cost: Digital control technology can be more expensive than analog control technology.Complexity: Digital control technology can be more complex than analog control technology. This can require specialized training to operate digital control machines.中文回答：数控技术。