Wire Cut Edm Machine

7/27/2019 Wire Cut Edm Machine

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WIRECUTEDMMACHINE

Prepared :- Jayesh patel

Enrollment no :- 120010708021

(me cad cam)

Guide :- prof. krunal shah1


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CONTENTS

Introduction

EDM ProcessWire Cut EDM Process

Advantages

DisadvantagesApplications


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Introduction EDM is a method for producing holes and slots, or

other shapes. It is also called spark erosion.

EDM, is well-suited for cutting intricate contours ordelicate cavities that would be difficult to producewith a grinder, an end mill or other cutting tools.

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Electrical-Discharge-Machining Process

Schematic of the Electrical-Discharge-Machining

Process.

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Materials In EDM

Materials must be Electr ical ly Conductive. so itdoes not work on materials such as glass or ceramic,or most plastics.

EDM is primarily used for hard metals.

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Wire EDM Process

Schematic of the wire EDM process. As much as 50 hours of machining can be

performed with one reel of wire, which is then discarded.

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The step by step EDM process

1. Dieonized water surrounds the wire electrodes as the power supply

generates voltages and amps to produce the spark

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Cont.

2. The generated spark precisely melts and vaporizes the material

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Cont.

3. During the off cycle, the pressurized dielectric fluid immediately cools the

material and flushes out the eroded particles.

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Cont.

4. New wire is constantly fed, while the eroded particles are removed and

separated by a filter system.

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Features of the Wire EDM Process

1. Low work holding forces

2. Low cutting forces

3. Very accurate process tolerances held +/- 0.0001"

4. No tool wear (the wire is continually replenished)5. Environmentally friendly (by products are easily recycled)

6. Hardened materials are easily machined Spark temperatures

are between 8,000 and 12,000 degrees C (plasma zone)

7. The range of the sparks varies from a few microns to 1 mm

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Advantages

1. Wire Cut electrical discharge machining is mainly used to

cut complicated shapes and designs into hard metals.

2. It is most useful in the electronics and aerospace sectors for

prototyping and manufacturing various parts.

3. Complex shapes that would otherwise be difficult to

produce with conventional cutting tools.

4. Very small work pieces where conventional cutting tools

may damage the part from excess cutting tool pressure.

5. Extremely hard material machining to very close

tolerances.

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Disadvantages

1. The inability to machine non-conductive materials.

2. The slow rate of material removal.

3. The additional time and cost used for creating electrodes for

ram / Sinker EDM.4. Reproducing sharp corners on the work piece is difficult

due to electrode wear.

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Applications

1. Prototypes / Production Parts

2. Dies & Tooling / Mold Components

3. Complex Shapes

4. Small Hole EDM

5. Difficult Materials

6. Up to 30 Taper / 10 Thick

7. Unmatched Accuracy

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Wire Cut Edm Machine

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