Aihao Metal Products

Summary of 10 Common Problems in CNC Engraving and Machining (Part 2)

       In the previous article, we introduced four common issues that tend to arise in CNC engraving and machining. There are still some situations that require detailed explanations, such as what are the main factors affecting engraving and machining? And so on. Next, Suzhou machining parts manufacturer - Aihao Metal Products Factory will introduce to you a summary of 10 common issues that tend to arise in CNC engraving and machining (Part 2):

       What are the main factors affecting engraving and machining?

       Precision metal processing is a relatively complex process, and there are many factors that affect its processing results. The main factors are as follows: the characteristics of the machine tool, the tools used, the control system, the processing technology, the material characteristics, the auxiliary fixtures, and the surrounding environment;

       6. If CNC machining can utilize tools with very small diameters, can it replace electric discharge machining (EDM)?

       Of course not. Although engraving has narrowed the range of tool diameters for milling, small molds that could only be processed using electric discharge machining (EDM) in the past can now be achieved through engraving. However, the length-to-diameter ratio of engraving tools is generally around five to one. When using small-diameter tools, only very shallow cavities can be processed, and the EDM process basically has no cutting force. With intelligent manufacturing of electrodes, cavities can be processed;

 7. What are the requirements for the control system in CNC engraving and machining?

       CNC engraving processing first requires a control system, so the control system must possess the control capability for milling processing. For small tool processing, it is also necessary to provide a feedforward function, slowing down the path in advance to reduce the frequency of tool breakage for small tools. At the same time, the cutting speed should be increased in relatively smooth path segments, thereby improving the efficiency of engraving processing;

       8. Which materials are suitable for engraving and processing?

       The non-metallic materials suitable for carving and processing mainly include plexiglass, wood, and tree branches. The non-metallic materials unsuitable for carving and processing mainly include glass and natural marble. The metallic materials suitable for carving and processing mainly include copper, aluminum alloy, and mild steel with a hardness less than HRC40. The metallic materials unsuitable for carving and processing include hardened steel, etc;

       9. What characteristics of materials will affect processing?

       The main factors affecting the engraving performance of materials are material type, hardness, and toughness. Material types primarily include metallic and non-metallic materials. Generally speaking, the greater the hardness, the worse the processing performance; the greater the toughness, the worse the processing performance; the more impurities, the worse the processing performance; the greater the strength of internal micro-particles in the material, the worse the processing performance. The general standard is that the higher the carbon content, the worse the processing performance; the higher the alloy content, the worse the processing performance; the higher the non-metallic element content, the better the processing performance;

       10. What are the impacts of the tool's back on machining?

       The factors affecting the cutting tools used in engraving mainly include the material, geometric parameters, and grinding technology of the tools. The cutting tool material used in engraving is cemented carbide, which is a powder alloy. The main performance indicator determining the material properties is the average diameter of the powder. The smaller the diameter, the more wear-resistant the tool, and the higher its durability. The sharpness of the tool is the main factor affecting the cutting force;

       Suzhou Aihao Metal Products Factory is a professional manufacturer specializing in the production of sheet metal parts, stamping parts, machining parts, drawing parts, welding parts, and hardware processing parts. Our main business includes Suzhou sheet metal parts, Suzhou stamping parts, sheet metal processing, stamping parts processing, and Suzhou machining parts. We have passed the IATF16949 quality system and welcome inquiries for cooperation.