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Influence Of Non-electrical Parameters On Processing Speed

The flushing, oil pumping and processing speed flush, the oil pumping is too small, and the chip removal is not good. There are many opportunities for secondary discharge. Excessive flushing and oil pumping will cause interference and destroy the processing stability, which will reduce the processing speed. In addition, when the oil is flushed outside, the flushing method and the size of the flushing oil will have a certain influence on the processing speed. The method and size of flushing and pumping should be determined according to the processing conditions. Generally, the depth of processing is deep or the processing area is large, and the pressure of flushing and pumping increases accordingly. For small hole processing, the method to increase the processing speed is high-pressure chip removal:  

The working fluid and the processing speed are in the process of electric machining. The working fluid can ensure proper dielectric strength in the gap, so that the ionization can be deionized as soon as possible after the pulse discharge, and the flow of the working fluid can take away the corrosion and corrosion products. the hottest. Therefore, the type, privacy and cleanliness of the oil have an impact on the processing speed. Generally, the most widely used working fluid in EDM is kerosene. If a certain amount of oil is added to kerosene, the processing speed can be improved.  

Different Media Have Different Processing Speeds.

The approximate sequence is as follows: High pressure water to kerosene + engine oil)>kerosene>alcohol aqueous solution, electrode material and processing speed are different when the electrical parameters are selected, different electrode materials and processing polarities are used. The processing speed is also different. In general, in the middle pulse width section, the processing speed of graphite electrode is better than that of copper. In the wide pulse and narrow pulse section, the processing speed of copper electrode is better than that of graphite.  

Workpiece material and processing speed Under the same processing conditions, the processing speed of different workpiece materials is also different. Generally speaking, the higher the melting point and boiling point of the workpiece material, the greater the specific heat capacity, the latent heat of fusion and the latent heat of vaporization, and the lower the processing speed, the more difficult it is to process. For example, the processing speed of cemented carbide is lower than that of steel}Il,1},i?f:}r. The processing speed of unquenched steel is lower than that of quenched steel},’  

Force stability and machining speed Machining stability is an important factor affecting the machining speed. To ensure the machining stability, the following issues should be paid attention to: ;: The rigidity of the machine tool should be better. The spindle guiding accuracy should be high.

Non-electrical Parameters On Processing Speed Influence

The processing speed of a CNC (Computer Numerical Control) machine is influenced not only by electrical parameters but also by several non-electrical factors. These non-electrical parameters can significantly impact the machine’s performance and efficiency. Some of the key non-electrical factors that influence processing speed include:

  • Material Type: Different materials have varying properties, such as hardness, density, and thermal conductivity, which affect the cutting and machining process. Harder materials may require slower feed rates to avoid excessive tool wear and breakage, leading to reduced processing speeds.
  • Cutting Tool Quality: The quality and sharpness of the cutting tools used in the CNC machine play a crucial role in determining the processing speed. Dull or low-quality tools may require slower feed rates to achieve accurate cuts, whereas high-quality tools can enable faster machining.
  • Cutting Parameters: The selection of appropriate cutting parameters, such as cutting speed, feed rate, and depth of cut, is critical in determining the processing speed. Optimal cutting parameters ensure efficient material removal while maintaining tool life and surface finish.
  • Fixturing and Workholding: The method used to hold and secure the workpiece during machining can impact processing speed. Proper fixturing ensures stability and reduces vibrations, allowing for higher feed rates and cutting speeds.
  • Coolant and Lubrication: Effective coolant and lubrication systems are essential for managing heat generated during the machining process. Adequate cooling and lubrication prevent tool overheating and material buildup, enabling faster processing speeds.
  • Machine Rigidity and Stability: The rigidity and stability of the CNC machine itself influence its ability to handle higher cutting forces and speeds. A rigid and well-maintained machine can support faster machining without compromising accuracy.
  • Software and Programming: The CNC machine’s software and the efficiency of the programming can impact processing speed. Well-optimized G-code programs, efficient toolpath planning, and minimizing unnecessary tool movements can lead to faster machining times.
  • Operator Skill and Experience: The operator’s skill level and experience in operating the CNC machine can influence the processing speed. Experienced operators can make real-time adjustments and optimize machining parameters to improve efficiency.
  • Safety Considerations: Sometimes, to ensure safety, the machine may operate at reduced speeds in specific situations, such as when machining complex or critical components.

It’s essential to strike a balance between processing speed and the quality of the finished product. While increasing processing speed can improve productivity, it should not be done at the expense of compromising accuracy, surface finish, or tool life. Manufacturers and operators must carefully consider these non-electrical parameters and optimize them to achieve the best possible balance between speed and quality in CNC machining operations.

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  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

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