Handling and use of toll such as tube cutter ,tube bender ,flaring tool pliers , service gauge ,soldering and brazing joint etc I hope it will be most helpful for you. Thank you Asheesh kushwaha

1. OBJECT - Handling and use of tools such as- Tube cutter,
Tube bender, Flaring and Swaging tool, wrenches, pliers, service
valves, service gauges, preparation of soldered and brazing joint
Apparatus Requires - Tube cutter , tube Bender , flaring ,
Wrenches , pliers, service gauge, brazing
Joint .
Theory -
1 . TUBE CUTTER
Meaning :- A pipecutter is a type of tool used by plumbers to cut pipe.
Besides producing a clean cut, the tool is often a faster, cleaner, and more
convenient way of cutting pipe than using a hacksaw, although this
depends on the metal of the pipe.
Used material :- 1 - Aluminium .
2 - Iron.
3 - coper
4 - polymer / plastic

2. Types of tube cutter :- pipes and tube cutter are
frequently used To ,
1 :- Ratcher tube cutter .
2:- Three way tube cutter.
3:- power tube cutter.
4:- wheel tube cutter .
5:- pivoted joint tube cutter.
6:- trigger tube cutter.
7:- Soil and drain tube cutters
Ratchet tube cutter:-
The ratchet tube cutter has a ratchet system to cut the pipe. It is
opened and closed around the tubing three to four times to
complete a cut. It is a very versatile tool as it can be used to cut
most tube sizes and materials.

3. Three way tube cutter:-
The three way tube cutter has a rotating slots system which
allows it to cut three different sizes of pipe.
Power tube cutter:-
The power tube cutter has a 75 watt motor which powers
the blade to cut plastic tubing in four seconds. This is useful
if a lot of tubing needs to be cut quickly.

4. Wheel tube cutter :-
The wheel tube cutter is placed around the tube to cut it. As it is
small, it is good for use in tight areas and with groups of tubing.
Pivoted joint tube cutter:-
The pivot joint tube cutter is one of the smaller tube cutters,
therefore used to cut small tubing, between 3mm (0.1") and
16mm (0.6") in diameter. The tube is placed in the cutter, then the
top section is pushed down to make the cut.

5. Trigger tube cutter:-
The trigger tube cutter has a trigger handle which controls the
blade. It also has tube rest to avoid warping. It can be used to cut
a number of differently sized plastic tubes.
Soil and drain tube cutter:-
The soil and drain tube cutter can be used to
cut and bevel soil and drain pipes. These are
much larger than other cutters used for
plastic tubing, and cut in a circular motion.

6. Application of tube cutter:- pipe and tube cutter are
Frequently used to ,
1- To creat custom piping system both for residential and
Commercial building .
2 - For industrial plumbing or processing lines for fluid transfer.
3 - For waste water treatment .
4 - for fluid or gas handling
Advantage :-
1 :- No material lost between cuts.
2 :- can be integrated with secondary operation such as grooving
And chamfering.
3 :- No chips are produce.
Disadvantage:-
1:- can produce metal fatigue at cut end ,which can be
detrimental to secondary operation.
2:- tool life is shortened when cutting hard material.

7. TUBE BENDER
Tube bending is the umbrella term for metal forming processes
used to permanently form pipes or tubing. One must differentiate
between form-bound and freeform-bending procedures, as well
as between heat supported and cold forming procedures.
process :- Tube bending as a process starts with loading a tube
into a tube or pipe bender and clamping it into place between two dies,
the clamping block and the forming die. The tube is also loosely held by
two other dies, the wiper die and the pressure die.
The process of tube bending involves using mechanical force to push
stock material pipe or tubing against a die, forcing the pipe or tube to
conform to the shape of the die. Often, stock tubing is held firmly in
place while the end is rotated and rolled around the die. Other forms of
processing including pushing stock through rollers that bend it into a
simple curve.[2] For some tube bending processing, a mandrel is placed
inside the tube to prevent collapsing. The tube is held in tension by a
wiper die to prevent any creasing during stress. A wiper die is usually
made of a softer alloy such as aluminum or brass to avoid scratching or
damaging the material being bent.

8. Types of bending :-
1 :- press bending
2:- rotary draw bending
3 :-Roll bending .
4 :-Three roll push bending.
5 :- simple things three roll bending.
6 :- induction bending.
Press bending
Press bending is probably the first bending process used on cold
pipes and tubing.[clarification needed] In this process a die in the
shape of the bend is pressed against the pipe forcing the pipe to
fit the shape of the bend. Because the pipe is not supported
internally there is some deformation of the shape of the pipe,
resulting in an oval cross section. This process is used where a
consistent cross section of the pipe is not required. Although a
single die can produce various shapes, it only works for one size
tube and radius.

9. Rotary draw bending
Rotary draw bending (RDB) is a precise technology, since it bends
using tooling or "die sets" which have a constant center line
radius (CLR), alternatively indicated as mean bending radius (Rm)
. Rotary draw benders can be programmable to store multiple
bend jobs with varying degrees of bending. Often a positioning
index table (IDX) is attached to the bender allowing the operator
to reproduce complex bends which can have multiple bends and
differing planes.

10. Roll bending
During the roll bending process the pipe, extrusion, or solid is
passed through a series of rollers (typically three) that apply
pressure to the pipe gradually changing the bend radius in the
pipe. The pyramid style roll benders have one moving roll, usually
the top roll.
Three-roll push bending
Three-roll push bending (TRPB) is the most commonly used
freeform-bending process to manufacture bending geometries
consisting of several plane bending curves.

11. Simple three-roll bending
Three roll bending of tubes and open profiles can also be
performed with simpler machines, often semi-automatic and non
CNC controlled, able to feed the tube into the bending zone by
friction. These machines have often a vertical layout, i.e. the three
rolls lie on a vertical plane.
Induction Bending
Induction bending is used to produce bends for a wide range of
applications, such as (thin walled) pipe lines for both the
upstream and down stream and on- and off shore segments of
the petrochemical industry, large radius structural parts for the
construction industry, thick walled, short radius bends for the
power generating industry and city heating system

12. Flaring Tool
Flaring tools are adaptive mechanisms used in pipe fittings. They
accept pliable metal piping and expand the ends of pipe sections
as needed, so the pipe can fit to the next section.
Function:- In automotive uses, flaring tools help mechanics fit
brake, fuel, cooling and transmission lines. The basic functionality
is the same as non-automotive flaring tools, although the size
presets provided by the device are industry-specific.

13. Swagging Tool
A Swaging Tool is a downhole tool that is usually used for
opening a tubing that is damaged. It is used along with the
slickline and when lifted up, the tool opens up the collapsed
tubing wall with force. This is accomplished by the circular
wedge on the end of the tool. A tool string has a jar fitted on it
that provides enough force for the Swaging Tool to be pushed in
and out from the tubing without any restriction. This helps the
tool to open up the deformed or damaged tubing, thus
maintaining it easily.

14. Wrenches Tool
Wrench, also called spanner, tool, usually operated by hand, for
tightening bolts and nuts. Basically, a wrench consists of a stout
lever with a notch at one or both ends for gripping the bolt or nut
in such a way that it can be twisted by a pull on the wrench at right
angles to the axes of the lever and the bolt or nut. Some wrenches
have ends with straight-sided slots that fit over the part being
tightened; these tools are known as open-end wrenches and are
made in various sizes to fit specific bolt and nut sizes.

15. Types of wrenches tool:-
1-Adjustable wrench.
2- combination wrench.
3- open end wrench.
4-Ratchet wrench.
5- Crowfoot wrench.
6-Basin wrench.
7-pipe wrench. etc
Pliers
Pliers are a hand tool used to hold objects firmly, possibly developed from
tongs used to handle hot metal in Bronze Age Europe.[1] They are also
useful for bending and compressing a wide range of materials. Generally,
pliers consist of a pair of metal first-class levers joined at a fulcrum
positioned closer to one end of the levers, creating short jaws on one side
of the fulcrum, and longer handles on the other side.[1] This arrangement
creates a mechanical advantage, allowing the force of the hand's grip to be
amplified and focused on an object with precision. The jaws can also be
used to manipulate objects too small or unwieldy to be manipulated with
the fingers.
.

16. Types of pliers
1 -slip joint plier.
2-Diagonal plier.
3-Needle nose plier.
4-Bent nose plier.
5-pincers. Etc
Service valve
Depending on the device you are working, fittings vary and will be
different. Service valves, devices that allow access in hermetic
refrigerating systems. The most economical way to do this is by
crimping. This procedure is performed at the factory. Small length
of the copper pipe attached to the suction side and the high side of
the system. When the desired quantity of refrigerant was placed in
the system, corrugated pipes and solder closed. When this is
completed, then this is not the way to get back into the system.

17. Soldering
Soldering is the act of joining two pieces together with a melted
component. Solder can seal the links of a tiny necklace chain or
join giant pipes on a ship. Soldering is different from welding. In
welding, the pieces to be joined are actually melted together.
Solder, though, is the material that actually melts between the two
solid pieces, forming a joint, of which there are several different
kinds.

18. Brazing
Brazing is a metal-joining process in which two or more metal
items are joined together by melting and flowing a filler metal into
the joint, the filler metal having a lower melting point than the
adjoining metal.
Conclusion:- Hence we have studied different type of tool
Which are used in maintenance of
Refrigeratory system.