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2021-07

The main factors affecting the machining accuracy of high-precision electrical discharge machining (EDM)

The main factors affecting the machining accuracy of high-precision electrical discharge machining (EDM) are as follows: 1. The impact of discharge gap on machining accuracy: A quantitative understanding of the size of the discharge gap in high-precision EDM is fundamental to determining the machining plan. This includes the design of the tool electrode shape and size, the design of the machining process steps, the selection and switching of machining standards, and the design of corresponding process measures, among others.

2021-07-12

2021-07

Changing the method of vertical servo processing for electrical discharge machining (EDM) machines.

Electrical discharge machining (EDM) machines are primarily used for processing various high-hardness materials and complex-shaped molds, including various metal molds and mechanical equipment. From the perspective of EDM machine manufacturers, discussing methods to change the vertical servo processing of EDM machines involves several key approaches: 1. **Improving Servo Motor Technology**: Upgrading to more advanced servo motors can enhance precision and responsiveness in vertical movements, allowing for finer adjustments during the machining process. 2. **Optimizing Control Algorithms**: Implementing more sophisticated control algorithms can improve the accuracy of vertical positioning and movement, leading to better machining results. 3. **Enhancing Feedback Systems**: Integrating high-resolution feedback systems, such as encoders, can provide real-time data on the position of the machining head, allowing for more precise control of vertical movements. 4. **Adjusting Machine Design**: Redesigning the machine structure to reduce vibrations and improve stability can significantly enhance the performance of vertical servo processing. 5. **Utilizing Advanced Materials**: Using materials with better damping properties for the machine components can help minimize the effects of vibrations during operation, leading to improved machining accuracy. 6. **Implementing Automation**: Incorporating automated systems for vertical adjustments can streamline the machining process and reduce human error, resulting in more consistent outcomes. 7. **Regular Maintenance and Calibration**: Establishing a routine maintenance and calibration schedule ensures that the vertical servo systems are functioning optimally, which is crucial for maintaining machining precision over time.

2021-07-12

2021-07

The working principle of the moving head in electrical discharge machining (EDM) is based on the controlled erosion of material through electrical discharges. In EDM, a tool electrode and the workpiece are separated by a dielectric fluid, which acts as an insulator until a high voltage is applied. When the voltage exceeds a certain threshold, a spark is generated between the tool and the workpiece, creating a localized high-temperature plasma that melts and vaporizes the material at the point of contact. The moving head allows for precise control of the tool's position and movement, enabling intricate shapes and features to be machined into the workpiece. The head can move in multiple axes, allowing for complex geometries to be achieved. The process is highly accurate and is often used for machining hard materials and creating molds and dies.

The linear head of the electrical discharge machine uses an eccentric mechanism to convert the rotational motion of the servo motor into a linear motion trajectory through a maintaining mechanism. This allows each point on the electrode to perform a small circular motion in the horizontal plane around its original position, creating a surface formed by the envelope of many small circles. The radius of this motion is called the linear motion amount, which can be gradually adjusted from zero to compensate for the differences in spark discharge gaps during rough, medium, and fine machining of the electrical discharge machine, thus achieving the purpose of polishing the cavity. The radius of the motion trajectory of each point is referred to as the linear motion amount.

2021-07-12

2021-07

Several Key Points to Note During Electrical Discharge Machining

The stability of discharge in electrical discharge machining (EDM) directly affects the quality and efficiency of the machining process, making it one of the important indicators for measuring the effectiveness of the entire machining process. Therefore, it has always been a concern for engineering technicians engaged in EDM. Achieving high stability in EDM is also a current hot topic of research and discussion in the field of electrical machining. Below are several key points to pay attention to during the discharge process in EDM.

2021-07-12

2021-07

Characteristics and Main Uses of High-Precision Electric Discharge Machining (EDM) Machines

The characteristics of high-precision electrical discharge machining (EDM) are as follows: 1. The energy density of the pulse discharge is high, making high-precision EDM suitable for processing special materials and complex-shaped workpieces that are difficult or impossible to process using conventional machining methods. High-precision EDM is not affected by the hardness of the material or the heat treatment condition.

2021-07-12

2021-07

Safety Operating Procedures for Electric Discharge Machining (EDM) Machines

Safety Operating Procedures for Electric Discharge Machine Tools 1. Operators must undergo professional training, pass examinations, and obtain certification before operating independently. 2. Open flames and smoking are prohibited in the operating room, and fire extinguishing equipment for oil fires should be readily available.

2021-07-12

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