Email Us

Process Analysis of CNC Machining

CNC machining refers to the processing that the control system issues commands to make the tool perform various movements that meet the requirements, and express the shape and size of the workpiece in the form of numbers and letters. It generally refers to the process of machining parts on CNC machine tools.

A CNC machine tool is a machine tool controlled by a computer. The computer used to control the machine tool, whether it is a dedicated computer or a general-purpose computer, is collectively referred to as a numerical control system. The movement and auxiliary actions of CNC machine tools are controlled by the commands issued by the CNC system. The instructions of the CNC system are compiled by the programmer according to the material of the workpiece, the processing requirements, the characteristics of the machine tool and the instruction format (NC language or symbols) specified by the system. The numerical control system sends out operation or interruption information to the servo device and other functional components according to the program instructions to control various movements of the machine tool. When the machining program of the part ends, the machine will automatically stop. For any kind of CNC machine tool, if there is no program command input in its CNC system, the CNC machine tool cannot work. The controlled actions of the machine tool roughly include the start and stop of the machine tool; the start and stop of the spindle, the change of the rotation direction and speed; the direction, speed and mode of the feed movement; the selection of the CNC machine tools materials, the compensation of the length and radius; the replacement of the tool, the cooling Liquid opening and closing, etc.

Dimensions should be in line with the characteristics of CNC machining

In NC programming, the dimensions and positions of all points, lines and surfaces are based on the programming origin. Therefore, it is best to give the coordinate dimensions directly on the part drawing, or try to mark the dimensions with the same datum.

The conditions of CNC machining geometric elements should be complete and accurate

In programming, programmers must fully grasp the geometric element parameters that constitute the part outline and the relationship between the geometric elements. Because all geometric elements of the part contour need to be defined during automatic programming, and the coordinates of each node need to be calculated during manual programming, no matter which point is unclear or uncertain, programming cannot be performed. However, due to the lack of consideration or neglect by the part designers in the design for CNC machining process, the parameters are often incomplete or unclear, such as whether the arc and the straight line, the arc and the arc are tangent, intersecting or separating. Therefore, when reviewing and analyzing the drawings, you must be careful and contact the designer in time if you find any problems.

CNC machining positioning benchmark is reliable

In machining CNC technology, the machining process is often concentrated, and it is very important to locate with the same reference. Therefore, it is often necessary to set some auxiliary datums or add some process bosses to the blank.

CNC machining unified geometry type or size

The shape and inner cavity of the part should preferably adopt a unified geometric type or size, which can reduce the number of tool changes, and may also apply control programs or special programs to shorten the program length. The shape of the part is as symmetrical as possible to facilitate programming with the mirror machining function of CNC machining to save programming time.

Related CNC Machining Services
Related News of CNC Machining
  • Machined Washers: Everything You Need to Know About CNC-Engineered FastenersMachined Washers: Everything You Need to Know About CNC-Engineered FastenersNovember 8, 2023​Welcome to the world of machined washers! If you're reading this, you're about to embark on a journey to discover the fundamental building blocks of precision engineering. Whether you're an engineer, a DIY enthusiast, or a professional seeking the perfect fastener for your project, this comprehensive guide will equip you with the knowledge to make informed decisions and take your projects to the next level.view
  • Surface Finishing Process What Are the Different Products Suitable For What Process?Surface Finishing Process What Are the Different Products Suitable For What Process?October 24, 2023The whole process of processing, in the selection of the appropriate processing method CNC processing or 3D printing, after the completion of processing, most of them need surface treatment. Meet the corrosion resistance, abrasion resistance, decoration or other special functional requirements of the product.view
  • How to Reduce the Cost of CNC Machined Parts Through Structural DesignHow to Reduce the Cost of CNC Machined Parts Through Structural DesignOctober 20, 2023CNC machined parts, i.e. parts processed by CNC equipment, CNC machining, usually refers to the precision machining method digitally controlled by a computer, which has become a common method of machining in nowadays.view
  • How do you charge for sleeve parts machining?How do you charge for sleeve parts machining?October 31, 2023Sleeve parts machining charges will be involved in the structural design, machining process, hole size, material selection and other requirements, any one of the different processing needs will lead to a great difference in price, so the need for a relatively accurate quote must provide a complete design drawings, engineers will be based on the design of the drawings labeled materials, dimensions, process, accuracy, structure, table at the detailed parameters such as calculating the accurate quote.view
  • Machining Tungsten Guide: Can Tungsten be Machined?Machining Tungsten Guide: Can Tungsten be Machined?November 13, 2023Welcome to the cutting-edge world of machining tungsten, where precision meets excellence. As the forefront player in CNC machining, Richconn is here to unravel the intricacies of working with tungsten, answering the pivotal question: Can tungsten be machined?view
  • CNC numerical control cutting aluminum sheet, the efficient tool of modern manufacturingCNC numerical control cutting aluminum sheet, the efficient tool of modern manufacturingAugust 4, 2023In modern manufacturing, aluminum sheets are widely used, and CNC (Computer Numerical Control) cutting technology has become an efficient tool for processing aluminum sheets. CNC cutting aluminum she...view
1212, Zehua Building, Intersection of Longhua Meilong Road and Donghuanyi Road, Songhe Community, Longhua Street, Longhua District, Shenzhen, GuangDong, China