Single Head EDM Machine
A single head EDM machine is a type of EDM equipment that features a single electrode used to erode material from a workpiece through a series of controlled electrical discharges. This machine is designed for precision machining of complex shapes and hard materials. Single head EDM machine is also effective for crafting medical device components with critical tolerances as its process does not introduce vibration or cutting pressure.
Benefits of Single Head EDM Machine
Hard material machining
Single head EDM machine is suitable for machining very hard and heat-resistant materials. For example, it can efficiently machine hard alloys, titanium alloys, hard metals, and hardened steels.
Complex Shape Machining
Single head EDM machine is suitable for producing parts with 3D shapes and fine details. It is useful for producing complex shapes that are difficult or impossible to produce with other machining methods.
Low thermal effects
Compared to traditional machining and milling, single head EDM machine has less thermal effects on the material, resulting in less material alteration. This allows machining of heat-sensitive materials such as hardened steels without affecting their properties.
Micro hole machining
Single head EDM machine can effectively machine micro holes. This property is valuable in fields where small parts are required, such as aerospace and medical device manufacturing.
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Why Choose Us
Construction Area
The company currently has a modern factory of more than 20 acres in the high-tech zone of Suzhou City, Jiangsu Province, with a construction area of more than 20,000 square meters, more than 80 employees, and engineers account for 30%.
Our service
24-hour service. The after-sales service in different countries is mainly provided by agents from different countries. If customers need to repair themselves, we can provide relevant spare parts.
Our Certificate
The company has passed the "ISO9001" quality management system certification, won the national "high-tech enterprise", "provincial private technology enterprise", and is the director unit of "China Machine Tool Industry Association Special Processing Machine Tool Branch".
Years Of Experience
Engaged in electric machining research and development services for over 20 years. Fully CNC mirror EDM was successfully developed and put into production. Introduce modern enterprise management mode (enhance soft power).
Copper
Copper is the perfect choice for the single head EDM machine process since it has such high conductivity. The use of copper restricts the process due to copper heating quickly and passing the heat through the metal, which requires that the process be slowed and carefully controlled.
Tungsten Carbide
Tungsten carbide is a difficult metal to machine since it has high hardness and melting point and is brittle, which makes sinker EDM the perfect method for machining it.
Titanium
Titanium has exceptional strength to weight ratio, corrosion resistance, and the ability to withstand high temperatures. Due to its biocompatible properties, it is widely used for medical implants.
Nickel Alloys
Nickel will alloy with several different different metals including chromium, iron, molybdenum, and copper. The wide variety of alloys makes it possible for nickel to have several different properties and characteristics, such as resistance to corrosion, high temperature scaling and strength, exceptional shape memory, and low coefficient expansion.
Aluminum
Aluminum is an extremely abundant metal that is used in a wide assortment of applications and products. Its natural resistance to oxidation, corrosion, and rust makes it a highly durable metal.
The Main Reason for Using Dielectric Fluid in Single Head EDM Machine
Insulation
The dielectric fluid acts as an insulating medium between the electrode (tool) and the workpiece. This insulation allows a high voltage to be applied between the two, which is necessary to generate the electric discharge.
Cooling
The dielectric fluid helps cool the workpiece and the electrode during the machining process. The electrical discharges generate significant heat, which could damage the materials if not properly dissipated.
Debris Removal
The dielectric fluid flushes away the tiny metal particles or debris that are eroded from the workpiece during the single head EDM machine process. This ensures the spark gap remains clear for continued efficient machining.
Electrical Conductivity
The dielectric fluid has a specific level of electrical conductivity that allows the controlled electric discharge to occur between the electrode and workpiece. Common dielectric fluids used in single head EDM machine include kerosene, deionized water, and hydrocarbon oils.
Application of Single Head EDM Machine
Aerospace and Defense
Single head EDM machine is also used extensively in the aerospace and defense industries for creating critical components for jet engines, missiles, and other applications. The process is ideal for producing complex, high-precision parts with tight tolerances, such as turbine blades, compressor vanes, and fuel nozzles.
Medical Device Manufacturing
Single head EDM machine is used in medical device manufacturing for creating surgical tools and implants. The process allows for the creation of small, intricate parts with high precision and repeatability, which is essential for producing high-quality medical devices.
Automotive Industry
Single head EDM machine is used in the automotive industry for producing gears, crankshafts, and other components. The process allows for the creation of complex, high-precision parts with tight tolerances, which is essential for producing high-performance automotive components.
Electronics Industry
Single head EDM machine is used in the electronics industry for creating components for circuit boards and other applications. The process allows for the creation of small, intricate parts with high precision and repeatability, which is essential for producing high-quality electronic components.
Tool and Die Manufacturing
Single head EDM machine is used extensively in tool and die manufacturing. The process allows for the creation of complex shapes with high precision and repeatability, which is essential for producing high-quality tools and dies.
Components of Single Head EDM Machine
Worktable
The worktable is the part of the machine that holds the workpiece in place and secure during the machining process. The internal structure of EDM machine worktables is isolated from the electric current produced by the process.
Control Panel
The control panel is the interface between the operator and the machine. It allows the operator to input the machining parameters and monitor the progress of the machining process.
Power Supply
Control of the arc of the electrode determines the quality of the surface of the workpiece. This involves uniform power and energy from the power supply, which supplies the current and voltage to create the arc.
Electrode
The electrode is a specially shaped tool made of conductive material, such as copper or graphite. It creates the desired shape and is connected to the power supply.
Servo Control System
The servo control system is responsible for controlling the movement of the electrode, the worktable, and the spark discharge gap. The servo control system determines optimum spacing between the electrical discharge electrode and the workpiece.
Filtration System
The filtration system removes debris and particles from the dielectric fluid to ensure that the machining process is clean and efficient. The filtration system captures the waste material.
Factors Affecting The Accuracy of Single Head EDM Machine
Surface roughness
The roughness of the single head EDM machine machined surface depends on the depth of the electric discharge pits and the uniformity of their distribution. Only when shallow and uniformly distributed electric discharge pits are produced on the machined surface, can the machined surface have a smaller roughness value. In order to control the uniformity of the discharge pits, it is necessary to adopt equal energy discharge pulse control technology, that is, to detect the falling edge of the gap voltage breakdown, control the discharge pulse current width to be equal, and use the same pulse energy for processing, so that the surface roughness of the processing is uniformly.
The influence of machining clearance (side clearance)
The size and consistency of the machining gap directly affects the accuracy of single head EDM machine. Only by grasping the value of the machining gap and surface roughness of each standard, can we correctly design the size of the electrode, determine the amount of shrinkage, and determine the standard conversion during the machining process.
The influence of machining slope
In machining, regardless of the hole or cavity, the side wall has a slope. The reason for the slope is that, in addition to the original slope of the electrode side wall itself in the technical requirements or manufacturing, it is generally caused by the uneven loss of the electrode. And "secondary discharge" and other factors. The electrode forms a taper due to wear, and this taper is reflected on the workpiece to form a machining slope.
Common Single Head EDM Machine Mistakes and How to Avoid Them
Improper electrode selection: The choice of electrode material, size, and shape can greatly impact the quality of the final product. Using the wrong type of electrode can lead to poor surface finish, slow cutting speed, and premature electrode wear. To avoid this mistake, it is important to carefully consider the material being machined and choose the appropriate electrode based on the desired results.
Poor flushing: Proper flushing is essential for removing debris and maintaining the correct dielectric fluid level during EDM machine. Insufficient flushing can lead to debris buildup, decreased cutting speed, and poor surface finish. To avoid this mistake, it is important to use the correct type and amount of dielectric fluid, and ensure that the flushing system is functioning properly.
Incorrect parameter settings: The correct selection of EDM machine parameters such as current, pulse duration, and frequency is essential for achieving the desired results. Using incorrect parameter settings can lead to poor surface finish, electrode wear, and slow cutting speed. To avoid this mistake, it is important to carefully analyze the material being machined and adjust the parameters accordingly.
Overcutting: Overcutting occurs when the cutting path extends beyond the desired shape or size, leading to wasted material and decreased accuracy. Overcutting can occur due to poor electrode selection, incorrect parameter settings, or improper machine alignment. To avoid this mistake, it is important to carefully plan the cutting path and ensure that the machine is properly aligned.
Inadequate workpiece preparation: Proper preparation of the workpiece, including cleaning and leveling, is essential for achieving accurate and high-quality results. Failure to adequately prepare the workpiece can lead to poor surface finish, decreased accuracy, and premature electrode wear. To avoid this mistake, it is important to carefully clean and level the workpiece before beginning the machining process.
How to Maintain Single Head EDM Machine
Cleaning
Regularly clean the inner and outer surfaces of the single head EDM machine to keep the machine clean. Clean the dust and oil residue inside the machine, and replace the filter and oil-water separator regularly. Clean the tool library and surrounding areas to keep the tool clean and free from moisture.
Lubrication
Regularly add oil and replace lubricating oil to the lubricating parts of the single head EDM machine. Be careful not to over-add oil to cause excessive oil pollution inside the machine. Regularly check whether the lubricating oil is dirty and replace it in time if necessary.
Adjustment
Regularly check the various adjustments of the single head EDM machine, such as electrode pressure, electrode fixture, cooling water pipeline, etc. Pay attention to the normal use and regular replacement of the electrode. Adjust the tool replacement system, the gap between each axis and the tightness of the transmission belt, etc.
Inspection
During the use of the single head EDM machine, it is necessary to promptly check whether the electrode is normal and whether the electrode fixture is loose. Check the quality and oil level of each lubricating oil of the machine in time. Regularly check the tightness of the screws and the status of the connectors of various parts of the machine.
FAQ
As one of the leading single head EDM machine manufacturers in China, we warmly welcome you to buy discount single head EDM machine from our factory. All customized machines are with high quality and low price.
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