Sinker EDM vs wire EDM: Main differences and applications
Electrical Discharge Machining (EDM) is a process that uses electrical current to remove metal from a part. EDM is used to create complex shapes with accuracy and repeatability. There are two types of EDM: Sinker EDM and Wire EDM. In this article, we will discuss the main differences between the two and explain their applications.
What is Sinker EDM?
Sinker EDM is also known as Cavity Type EDM or Volume EDM. It is a process where a tool, such as a graphite or copper electrode, is used to create a shape in a workpiece. The electrode is connected to a power source and an electrolyte solution is used to conduct electric current between the electrode and the workpiece. As electricity flows, sparks are generated which erode the metal from the workpiece.
What is Wire EDM?
Wire EDM is also known as Ram Type EDM or Profile EDM. This process is similar to Sinker EDM but uses a thin wire instead of an electrode. The wire is passed through the workpiece and is connected to a power source. An electrolyte solution is used to conduct electric current between the wire and the workpiece. As electricity flows, sparks are generated which erode the metal from the workpiece.
The main differences between Sinker EDM and Wire EDM
- Sinker EDM is used for making complex shapes in hard metals such as tungsten carbide, while Wire EDM is used for making intricate cuts in softer metals such as aluminum and brass.
- Sinker EDM is a slower process than Wire EDM, but it produces more accurate results.
- Wire EDM is a faster process than Sinker EDM, but it is less accurate.
- Sinker EDM is more expensive than Wire EDM because of the larger size of the electrodes used.
- Wire EDM is less expensive than Sinker EDM because it uses smaller wires.
Applications of Sinker EDM and Wire EDM
Sinker EDM is used in the aerospace, automotive, medical, and mold-making industries. It is often used to create complex parts for aircraft engines, turbine blades, and medical implants. Wire EDM is used in a variety of industries such as aerospace, automotive, and medical. It is often used to produce intricate shapes in die and mold-making, as well as turbine blades and medical implants.
Conclusion
Sinker EDM and Wire EDM are two types of EDM processes that are used to create complex shapes in metal parts. The main difference between the two is that Sinker EDM is used for making complex shapes in hard metals while Wire EDM is used for making intricate cuts in softer metals. Each process has its own advantages and disadvantages, and they both have applications in a variety of industries.