How to understand precision parts processing in a short time

How to understand precision parts processing in a short time

Precision parts processing has already made rapid progress in improving accuracy and productivity. In terms of increasing productivity, improving the degree of automation is the direction that countries are striving to develop. In recent years, precision parts processing has rapidly developed from CNC to CIMS, and has been used in a certain range. The development from precision machining to ultra-precision machining is also the development direction of the world’s major developed countries.

According to the mechanism and characteristics of the machining method, precision machining can be divided into four categories: tool cutting, abrasive machining, special machining and compound machining. With the development of processing technology, many new processing mechanisms have appeared. Parts must be processed according to the forming mechanism and characteristics of the parts, especially in micro-machining.

Removal processing is divided into three categories: combination processing and deformation processing. The removal process is also called separation process. It uses force, heat, electricity, light and other processing methods to remove part of the material from the workpiece, such as cutting, grinding, electrical processing, etc. Combined processing is a method of attaching and welding a layer of different materials on the surface of the workpiece using physical and chemical methods, such as electroplating, vapor deposition, oxidation, carburizing, bonding, welding, etc.; deformation processing is the use of force, heat, and molecular motion And other means to deform the workpiece, change its size, shape and function, such as casting, forging, etc.

It can be seen that while the processing concept emphasizes appearance processing and forms appearance processing skills, it breaks the traditional removal processing method and has the characteristics of accumulation, growth, and deformation.

Compared with the chip-free process, the cutting process of precision parts has the advantages of high material removal rate and good economy compared with the laser plasma process. This is because the process can only achieve a high material removal rate by providing a large amount of energy. On the other hand, there are still questions about whether the processed workpiece can meet the requirements of size and shape accuracy.

Chipless pressure machining is mainly used for mass production, and usually requires subsequent cutting to obtain the final qualified workpiece shape. Therefore, the first point of machining is to make the workpiece to achieve higher precision, and precision parts are widely used. Especially with the development trend of small batch production, the requirements for the shape and dimensional accuracy of the workpiece are getting higher and higher, which has opened up a new and broader field for precision parts processing.

The use of lathes naturally requires various turning processes, but it should also be noted that the processing of precision parts such as drilling, milling, grinding and gear cutting can all be completed on a lathe (process integration). This is the machining method of the compound machine tool of the turning and milling machining center developed now.

Dongguan PTJ Precision Machinery Parts Co., Ltd. focuses on: CNC finishing supporting services for automation, aviation, basic scientific research, optical fiber, communications, semiconductors, electronics, medical equipment, auto parts suspension and other equipment accessories.
Processed materials: aluminum alloy, stainless steel, magnesium alloy, titanium alloy, nickel-based alloy (invar alloy/Invar alloy, kovar alloy/Kova alloy), high temperature alloy, tungsten copper alloy, engineering plastics And other special difficult-to-process materials.

Processed products: precision mechanical parts, medical precision parts, aviation parts, instrumentation parts, optical fiber communication parts, electronic product parts, auto parts, shock absorbers, suspension parts, non-standard components, connectors, High-standard products in industries such as alloy parts, hardware enclosures, and radiators.

Author: Chris Na