eb welding,usw, & francis turbine
TRANSCRIPT
PRESENTED BY Name
1
2
3
4
5
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.