Which metal Cannot be machined by EDM?

Which metal Cannot be machined by EDM?

2. Which of the following material cannot be machined using electronic discharge machine? Explanation: Wood is a bad conductor of electricity and hence cannot be machined using electronic discharge machine.

What materials can be machined by EDM?

In general, every conductive material can be machined with electrical discharge machining. Common materials include metals or metal alloys such as hardened steel, titanium, and composites. Typically, the electrodes for die sinking EDM are made of copper or graphite.

What does EDM use to machine metal?

EDM is a thermoelectric process used to remove metal via a series of discrete sparks between the metal and workpiece. In EDM an electric spark is used as the cutting tool to cut (erode) the workpiece and produce the finished part to the required shape.

Which of the following materials is are used for electrical discharge machining EDM process?

EDM involves the direction of high-frequency electrical spark discharges from a graphite or soft metal tool, which serves as an electrode, to disintegrate electrically conductive materials such as hardened steel or carbide.

Can glass be machined by EDM?

EDM is not suitable for machining of (a) Very hard metals, (b) Glass, (c) Plastics, (d) Fragile metallic components.

What is the basic principle of EDM?

Basic Principle: Process and applications of EDM. EDM is a machining technique for electrically conductive materials in which the tool consists of a fast and controlled continuous series of electric arcs between an electrode and the workpiece.

Why dielectric is used in EDM?

Dielectric is an important parameter in EDM and plays a crucial role in determining high material removal rate (MRR) and surface finish during operation. The dielectric fluid behave as a medium which controls the electrical discharge and absorb heat during process.

What EDM means?

Electronic dance music
Electronic dance music/Full name
abbreviation Music. electronic dance music: a range of genres of electronic music often played in nightclubs and characterized by a strong danceable beat: The festival lineup includes several popular EDM artists.

Which one of the following is most important parameter for EDM?

For EDM, MRR (Material Removal Rate), and Ra (Roughness Parameter, average roughness) are considered as the most important parameters and the need to maximize MRR and minimize Ra has always been the goal for many researchers and industries.

What are the principles of EDM?

Principles of EDM Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape.

What are the characteristics of electro discharge machining EDM?

Electro- Discharge Machining (EDM) is a material removal process based on a spark erosion mechanism generated between the electrode and the workpiece. Obviously, the workpiece material should at least possess a certain degree of conductivity such that a spark can be initiated.

What is wire EDM?

Definition of Wire EDM. Electrical Discharge Machining (EDM), a manufacturing process whereby a desired shape is obtained using electrical discharges, is primarily used to cut hard metals and other materials that would be impossible to machine with traditional techniques.

How does EDM work?

How Wire EDM Works. Wire EDM machining (also known as “spark EDM”) works by creating an electrical discharge between the wire or electrode, & the workpiece. As the spark jumps across the gap, material is removed from both the workpiece & the electrode.

What is EDM cutting?

EDM (Electrical discharge machining) wire-cutting, wire burning, wire-cut EDM or wire erosion, is a process in which holes are cut out of materials with the use of electrical discharges.

How does electrical discharge machining work?

The process of electrical discharge machining works by utilizing an electrical discharge or spark to create a product. This discharge is the result of two electrodes that are separated by a specialized fluid, known as a dielectric liquid, which is then subject to electrical current.