Category: Manufacturing Technology knowledge

The term CNC stands for "computer numerical control," and CNC processing is defined as the subtraction manufacturing process, which typically uses computer control and machine tools to remove layers of material from inventory pieces (called blanks or workpieces) and produce custom-designed parts. This process is applicable to various materials, including metal, plastic, wood, glass, foam and composite materials, and has been applied in various industries, such as large-scale CNC machining and CNC finishing aerospace parts CNC machining features 01 High degree of automation and very high production efficiency. Except for blank clamping, all other processing procedures can be completed by CNC…

With the development of modern NC machining towards high speed, high precision, high intelligence, high flexibility, high automation and high reliability, higher requirements are put forward for the machining ability and efficiency of the machining center, so the multi axis NC machining technology has been developed unprecedentedly What is a multi axis machine tool? Multi axis machine tool refers to simultaneous processing on multiple coordinate axes of a machine tool, and simultaneous coordinated movement can be carried out under the control of a computer numerical control system. Multi axis NC machining can simultaneously control the linkage of more than 4…

Surface treatment is to clean, clean, deburr, degrease and scale the workpiece surface to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. The surface treatment of metal castings mainly includes mechanical polishing, chemical treatment, heat treatment, spraying, etc. What are the common surface treatment processes? The appearance of the processed workpiece is inseparable from the design, color, material and process, and the surface treatment process is the most direct embodiment of the product appearance. The surface treatment can improve the product appearance, texture, function and other aspects of performance. The commonly used surface…

CNC machine tools appeared as early as the 1940s, when it was the first time to use motors to control the movement of existing tools, thus realizing the milling process. With the emergence and development of computer technology, the ability of analog computer is enhanced, which promotes the rise of CNC machining According to the different cutting direction and structure mode, CNC machine tools are divided into milling machines and lathes to meet the processing requirements of different curved surfaces CNC lathe The lathe is the processing method of workpiece rotation. The fixed longitudinal horizontal tool movement is used to process…

With the increase of market demand for machining, the technical accuracy of machining is also improved, and the types of machine tools are more and more. According to the classification of processing methods and tools used, machine tools are classified into 11 categories: lathe, drilling machine, boring machine, grinder, gear processing machine, thread processing machine, milling machine, planer, puller, sawing machine, etc. There are seven categories of commonly used boring machines, grinders, lathes, planers, milling machines, drilling machines, and gear processing machines Boring machine The boring machine is suitable for plane milling and hole series processing of single or small…

Heat treatment refers to a metal heat processing process that facilitates processing and improves the strength or hardness of finished products by heating, holding and cooling materials in solid state. This process is usually used to treat steel workpieces before and after CNC machining. The purpose of heat treatment of CNC machining materials is mainly to improve the mechanical properties of metal materials, give full play to the potential of materials, save materials and extend the service life of parts. Secondly, heat treatment can eliminate the residual stress of materials, improve the performance, and facilitate the cutting of materials Heat…

With the development of science and technology, the requirements for injection molding process are becoming higher and higher. The choice of injection molding mainly depends on the type of plastic, the initial shape, and the shape and size of the product. The common methods of injection molding include extrusion, injection molding, blow molding and calendering. Each method has its advantages and disadvantages, and is more suitable for specific applications. injection molding Injection molding: also known as injection molding, its principle is to add granular or powdery raw materials into the hopper of the injection machine. The raw materials are heated…

What to do if the paint strength is insufficient? There are two cases of insufficient coating strength: one is the normal drying strength, the other is the strength after high temperature washing. The two cannot be replaced. The normal drying strength is high ≠ the high temperature strength, and accidents will occur if misunderstood. 1. There are three reasons for insufficient drying intensity First, the performance of additives is insufficient; second, the amount of additives is insufficient; third, there is a problem with aggregate powder. The former two are easy to understand, while the latter may not be universally and…

This paper summarizes some problems of stamping die and lists some corresponding solutions for your reference. 1. Scrap jumping 1) The length of the punch is not enough, and the punch shall be replaced according to the thickness of one material cut into the female die by the cutting edge of the punch plus 1mm 2) If the clearance of the female die is too large, cut in the die to reduce the clearance or use a draper to reduce the clearance 3) If the punch or template is not demagnetized, demagnetize the punch or template with a demagnetizer 2.…

1、 Flow marks and patterns Visual inspection: the casting surface has stripes consistent with the flow direction of liquid metal, and has obvious non directional veins different from the color of the metal substrate, without development trend. 1. The causes of flow marks are as follows: 1) Too low mold temperature 2) Poor runner design and poor internal gate position 3) Material temperature is too low 4) Low filling speed and short filling time 5) Unreasonable gating system 6) Poor exhaust 7) Spray is unreasonable 2. The pattern is caused by excessive coating or poor coating quality in the mold…