WATER JET MACHINE PROCESS : Working of abrasive water Jet machining process (animation).
Summary
TLDRThe video script delves into the water jet machining process, a versatile non-conventional technique that utilizes high-velocity water jets for cutting materials. It can be used for both soft materials like plastic and rubber, and hard materials such as metals and granite with the addition of abrasive particles. The script covers the working principle, construction, operation, advantages, and disadvantages of water jet machining, highlighting its precision, cleanliness, and environmental friendliness. Applications range from automotive to aerospace industries, and it's also used for paint removal and stress peening. The script provides a comprehensive guide for those interested in this efficient and eco-friendly machining method.
Takeaways
- 💧 Water jet machining uses a high-velocity jet of water to cut materials, and is also known as water jet cutting.
- 🔨 For cutting harder materials, abrasive water jet machining is used, which mixes abrasive particles like garnet or aluminium oxide with water.
- 🏗️ The setup for water jet machining includes a water reservoir, hydraulic pump, intensifier, accumulator, control valve, flow regulator, mixing chamber, and nozzle.
- 🚀 The hydraulic intensifier increases water pressure from around 5 bars to 3000-4000 bars, which is crucial for the cutting process.
- 🔄 The accumulator helps to maintain a consistent high pressure by storing and supplying pressurized water as needed.
- 💦 The control valve and flow regulator manage the pressure and flow of the water jet, ensuring precision in cutting.
- 🔩 The nozzle, often made of ruby or diamond, converts the high pressure of water into a high-velocity stream for cutting.
- 🗑️ The drain and catcher system separates debris and particles from the water after machining, allowing for water reuse.
- 🛠️ Water jet machining is capable of producing complex cuts and is clean, dust-free, and has low operating costs due to the lack of moving parts.
- ♻️ It is environmentally friendly, producing no pollution or toxic byproducts, and can achieve high precision with tolerances of ±0.005 inches.
- 🚫 Disadvantages include the inability to machine very thick materials and the high initial cost of the equipment.
Q & A
What is water jet machining also known as?
-Water jet machining is also known as water jet cutting.
What type of materials can be cut using water jet machining?
-Water jet machining can cut both softer materials like plastic, rubber, or wood, and harder materials like metals or granite when an abrasive material is mixed with the water.
What is the term used when an abrasive material is mixed with water in the machining process?
-When an abrasive material is mixed with water for the machining process, it is called abrasive water jet machining.
What are the common abrasive particles used in abrasive water jet machining?
-The most commonly used abrasive particles in abrasive water jet machining are garnet and aluminium oxide, although sand and glass beads are also used.
What is the function of the abrasive particles in water jet machining?
-The function of the abrasive particles is to enhance the cutting ability of the water jet.
What are the main components of a water jet machining setup?
-The main components of a water jet machining setup include a water reservoir, hydraulic pump, booster, hydraulic intensifier, accumulator, control valve, flow regulator or valve, mixing chamber or tube, nozzle, and a drain and catcher system.
How does the hydraulic intensifier increase the pressure of water?
-The hydraulic intensifier increases the pressure of water from about four to three thousand to four thousand bar.
What is the purpose of the accumulator in water jet machining?
-The accumulator stores high pressurized water temporarily and supplies it when a large amount of pressure energy is required, helping to eliminate pressure fluctuation during the machining process.
What is the typical velocity of the water jet that comes out of the nozzle?
-The typical velocity of the water jet coming out of the nozzle is about one thousand meters per second.
What are some of the advantages of water jet machining?
-Advantages of water jet machining include the ability to produce complex cuts, a clean and dust-free machining area, low operating and maintenance costs, negligible thermal damage to the workpiece, the ability to cut a wide range of materials, being environmentally friendly, and high precision machining.
What are some of the disadvantages of water jet machining?
-Disadvantages of water jet machining include the inability to machine very thick materials and the high initial cost of the equipment.
In which industries is water jet machining commonly used?
-Water jet machining is commonly used in various industries such as mining, automotive, and aerospace for cutting, shaping, and other operations.
What are some of the materials commonly machined by water jet?
-Materials commonly machined by water jet include rubber, textiles, plastics, foam, leather, composites, tile, stone, glass, paper, and more.
What are some additional applications of high pressure water jet besides the machining process?
-Besides the machining process, high pressure water jet is used in paint removal, surgery, cleaning, and peening to remove residual stress.
Outlines
💧 Introduction to Water Jet Machining
This paragraph introduces water jet machining, a non-conventional machining process that uses a high-velocity jet of water to remove material from a workpiece. It can be used on both soft materials like plastic and rubber, and harder materials like metal and granite, with the latter requiring the addition of abrasive particles to enhance cutting ability. The video script outlines the topics to be covered, including the working principle, construction, working process, applications, advantages, and disadvantages of water jet machining. The principle is based on water erosion, and the setup includes components like a water reservoir, hydraulic pump, intensifier, accumulator, control valve, mixing chamber, nozzle, and a drain and catcher system. The paragraph concludes with an invitation to subscribe to the channel for updates.
🛠 Advantages and Applications of Water Jet Machining
This paragraph delves into the advantages of water jet machining, such as its ability to produce complex cuts, maintain a clean machining area, have low operating costs due to the lack of moving parts, and cause minimal thermal damage to the workpiece. It also highlights the environmental benefits and precision capabilities of the process. The disadvantages mentioned include the inability to machine very thick materials and the high initial cost of the equipment. The applications of water jet machining span various industries, including mining, automotive, and aerospace, for cutting, shaping, and other operations. The paragraph lists materials commonly machined by water jet, such as rubber, textiles, plastics, and glass, and notes that abrasive water jet machining is used for hard and difficult-to-machine materials like steel plates and ceramics. It also mentions other uses of high-pressure water jets, such as paint removal and stress peening, and concludes with an encouragement to like and subscribe to the channel for more content.
Mindmap
Keywords
💡Water Jet Machining
💡Abrasive Water Jet Machining
💡Hydraulic Pump
💡Intensifier
💡Accumulator
💡Control Valve
💡Mixing Chamber
💡Nozzle
💡Drain and Catcher System
💡Advantages
💡Disadvantages
💡Applications
Highlights
Water jet machining, also known as water jet cutting, is a non-conventional machining process using a high-velocity water jet to remove material from the workpiece.
The process can cut both softer materials like plastic, rubber, and wood, as well as harder materials like metals and granite by mixing an abrasive material with water.
When abrasive material is mixed in water, the process is termed as abrasive water jet machining.
Garnet and aluminum oxide are the most commonly used abrasive particles, with sand and glass beads also being utilized.
The construction of a water jet machining setup includes a water reservoir, hydraulic pump, intensifier, accumulator, control valve, flow regulator, mixing chamber, and nozzle.
The hydraulic intensifier increases water pressure from about 5 bars to 3000 to 4000 bars.
The accumulator stores high-pressure water to provide a consistent pressure supply during machining.
The nozzle converts the pressure energy of water into a high-velocity water jet, with the tip made of ruby or diamond to prevent erosion.
A drain and catcher system separates debris and machined particles from the water, recycling it back to the reservoir.
Water jet machining is capable of producing complex and intricate cuts in materials.
The machining area remains clean and dust-free due to the nature of the process.
Operating and maintenance costs are low as there are no moving parts involved in the process.
Thermal damage to the workpiece is negligible due to the absence of heat generation.
Water jet machining is environmentally friendly as it does not create pollution or toxic byproducts.
High precision can be achieved with tolerances in the order of plus or minus 0.005 inch.
One of the disadvantages is the inability to machine very thick materials.
The initial cost of water jet machining equipment is high.
Water jet machining is used in industries such as mining, automotive, and aerospace for cutting, shaping, and other operations.
Common materials machined by water jet include rubber, textiles, plastics, foam, leather, composites, tile, stone, glass, paper, and more.
High-pressure water jets are also used for paint removal, surgery, cleaning, and peening to remove residual stress.
Abrasive water jet machining can be used for drilling, pocket milling, and turning operations.
Transcripts
water jet machining process
water jet machining also called as water
jet cutting is a non-conventional
machining process
in which high velocity jet of water is
used to remove materials from the
surface of the workpiece or cutting it
into two parts
water jet machining process can be used
to cut softer materials like plastic
rubber or wood in order to cut harder
materials like metals or granite
an abrasive material is mixed in the
water when an abrasive material is used
in the water for the machining process
then it is called abrasive water jet
machining
this video will cover the following
about water jet machining process
one working principle two construction
three working four applications
five advantages and disadvantages
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working principle it is based on the
principle of water erosion
when a high velocity jet of water
strikes the surface the removal of
material takes place
pure water jet is used to machine softer
materials
but to cut harder materials some
abrasive particles are mixed with the
water for machining
and it is called as abrasive water jet
machining
the most commonly used abrasive
particles in abrasive water jet
machining are
garnet and aluminium oxide sand and
glass beads are also used as abrasive
the function of the abrasive particles
is to enhance the cutting ability of the
water jet
construction of water jet machining
setup it consists of following parts
water reservoir it stores the water
required for machining process
hydraulic pump it is used to circulate
the water from the storage tank during
the machining process
the pump delivers water to the
intensifier at low pressure of about
five bars
a booster is also used which increases
the initial pressure of water to 11 bar
before delivering it to the intensifier
hydraulic intensifier
it is used to increase the pressure of
water to very high pressure
it receives the water from the pump at
four bar and increases its pressure up
to three thousand to four thousand bar
accumulator that stores the high
pressurized water temporarily
it supplies that fluid when a large
amount of pressure energy is required
it eliminates pressure fluctuation
conditions in the machining process
control valve it controls the pressure
and direction of the water jet
flow regulator or valve the flow of the
water is regulated with the help of the
flow regulator
mixing chamber or tube it is a vacuum
chamber
where the mixing of abrasive particles
into water takes place
nozzle it is used to convert the
pressure energy of water
into kinetic energy in water jet
machining here nozzle converts the
pressure of water jet into high velocity
beam of water jet the tip of the nozzle
is made of ruby or diamond to prevent it
from erosion
drain and catcher system after the
machining the debris and machined
particles from the water
are separated out with the help of the
drain and catcher system
it removes the metal particle and other
unwanted particles from the water
and sends it back to the reservoir for
further use
working of water jet machining process
the water from the reservoir is pumped
to the intensifier with the help of a
pump
the intensifier increases the pressure
of the water from five bars to three
thousand to four thousand bar
this high pressure water from the
intensifier is moved to the nozzle as
well as in accumulator
the accumulator stores the high pressure
water and supplies it at any instant
when it is required
it is used to eliminate the fluctuation
of the high pressure requirement of
machining hard material
the high pressure water is then passed
to the nozzle where the high pressure
energy of the water is converted into
kinetic energy
a very high velocity jet of water which
is about one thousand meters per second
comes out through the nozzle in the form
of a narrow beam abrasive such as garnet
or aluminium oxide
is mixed with water within the nozzle a
mixing chamber is there in the nozzle
where the abrasives get mixed with the
high pressure water
this high velocity jet of water when
strikes the surface of the work piece
it removes the material from it
the water jet after machining it gets
collected by the drain and catcher
system
here the debris metal particles from the
water are removed
and it is supplied to the reservoir tank
the working will be same for the water
jet machining
but in water jet machining abrasive
particles are not mixed with the high
velocity jet
only pure water jet comes out from the
outlet of the nozzle
advantages 1. it is capable of producing
complex and
intricate cuts in materials 2. the
machining area in this machining process
remains clean
and dust free 3. it has low
operating and maintenance cost because
it has no moving parts
4. the thermal damage to the workpiece
is negligible due to no
heat generation 5. water jet machining
is capable of cutting softer materials
like rubber
plastics or wood as well as harder
material by mixing abrasives with water
6. it is environment friendly as it does
not create any pollution or toxic
products
7. it has a greater precision of the
machining
the tolerances in the order of plus or
minus 0.005 inch can be achieved easily
disadvantages of water jet machining one
very thick material cannot be machined
by this process
two the initial cost of water jet
machining is high
applications 1. waterjet machining is
used in various industries
like mining automotive and aerospace for
performing
cutting shaping and operations
2. the materials which are commonly
machined by waterjet
a rubber textiles plastics foam leather
composites
tile stone glass paper and much more
3. water jet machining is mostly used to
cut soft and easy to machine materials
such as thin sheets and foils wood
non-ferrous metallic alloys
textiles honeycomb plastics polymers
leathers etc
for abrasive water jet machining is
typically used to machine those
materials which are hard and difficult
to machine
it is used to machine thick plates of
steel aluminium and other commercial
materials
reinforced plastics metal matrix and
ceramic matrix composites
layered composites stones glass etc
five besides the machining process the
high pressure water jet is used in paint
removal
surgery cleaning peening to remove
residual stress
etc 6. abrasive water jet machining can
also be used to perform drilling
pocket milling turning and hope
you have understood water jet machining
process
an abrasive water jet machining process
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