EB WELDING,USW, & FRANCIS TURBINE

PRESENTED BY Name

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PRESENTATION 2K15

ELECTRON BEAM WELDING

ULTRASONIC WELDING

FRANCIS TURBINE

ELECTRON BEAM

WELDING

Electron beam gun.

Power supply.

Control system.

Deflection coils.

Motion equipment.

Vacuum welding

chamber.

EBW MACHINE

ADVANTAGES

Narrow fusion zone.

Reduces distortion.

Extreme precision.

Dissimilar materials can join.

Vacuum chamber gives high purity

weld.

Repeatability by electrical control

system.

Welds up to 95% of the strength of the

base material.

DISADVANTAGES

High equipment cost.

Time delay when welding in vacuum .

High weld preparation costs.

X-rays produced during welding.

Can cause cracking in some materials.

APPLICATIONS

Aerospace.

Defense.

Medical.

Automobile.

Nuclear.

Electronic components.

ULTRASONIC

WELDING

Sonotrode.

Anvil.

High frequency

transducer.

ULTRASONIC WELDING MACHINE

ULTRASONICALLY WELDED WIRES

ADVANTAGES

No melting occur.

Less time required.

Can weld thin sections.

Less distortion.

Can weld dissimilar materials.

65-100% Parent metal strength.

DISADVANTAGES

High degree of operator skill is

needed.

Equipment cost is high.

Life of equipment is short.

Mostly used to join thin sections.

APPLICATIONS

Glass and plastics can weld.

Can joint electric and electronic

components.

Fabrication of nuclear elements.

FRANCIS TURBINE

ADVANTAGES

No head loss at low discharge of water.

High efficiency than pelton wheel.

Operating head can simply controlled.

Less wear compare to pelton wheel.

DISADVANTAGES

Repair and inspection is harder.

Wear in non dirt free water.

Inspection is difficult.

Water hammer effect is a problem.