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The drilling machine is an imporatant part of engineering specially fo machines.
the dilling machine is taken in use for making a hole in the product.
it can use in multiple sizes and standards according to the need.
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This presentation contains various aspects of metal cutting like mechanics of chip formation, single point cutting tool, chip breakers, types of chips,etc
This slide is all about Metal cutting and Machining tools insights. It covers Mechanics of metal cutting, orthogonal and oblique machining, Tools geometry, Types of Chips, and Tools Signature.
This presentation contains various aspects of metal cutting like mechanics of chip formation, single point cutting tool, chip breakers, types of chips,etc
This slide is all about Metal cutting and Machining tools insights. It covers Mechanics of metal cutting, orthogonal and oblique machining, Tools geometry, Types of Chips, and Tools Signature.
UNIT III SHAPER, MILLING AND GEAR CUTTING MACHINESKarthik R
Shaper - Types of operations. Drilling ,reaming, boring, Tapping. Milling operations-types of milling
cutter. Gear cutting – forming and generation principle and construction of gear milling ,hobbing
and gear shaping processes –finishing of gears.
MILLING – Cutting parameters, machine time calculation
Milling operation – Plain milling, side & face milling, form milling, gang milling, end milling, face milling, T slot milling, slitting
GEAR CUTTING – Gear cutting on milling machine – dividing head and indexing method, gear hobbing, principle of operation, advantages & limitation, hobbing tech, gear shaping, gear finishing process
Whole lathe machine in brief which any one can understand easily and quickly.
A Perfect ppt to get knowledge about lathe machine, its parts, operations etc.
This presentation describes the cylindrical grinding process and types of operations and machines in this process, which is why useful topic B.Tech mechanical of fourth sem students. This explains about the overview on the external cylindrical grinding process.
UNIT III SHAPER, MILLING AND GEAR CUTTING MACHINESKarthik R
Shaper - Types of operations. Drilling ,reaming, boring, Tapping. Milling operations-types of milling
cutter. Gear cutting – forming and generation principle and construction of gear milling ,hobbing
and gear shaping processes –finishing of gears.
MILLING – Cutting parameters, machine time calculation
Milling operation – Plain milling, side & face milling, form milling, gang milling, end milling, face milling, T slot milling, slitting
GEAR CUTTING – Gear cutting on milling machine – dividing head and indexing method, gear hobbing, principle of operation, advantages & limitation, hobbing tech, gear shaping, gear finishing process
Whole lathe machine in brief which any one can understand easily and quickly.
A Perfect ppt to get knowledge about lathe machine, its parts, operations etc.
This presentation describes the cylindrical grinding process and types of operations and machines in this process, which is why useful topic B.Tech mechanical of fourth sem students. This explains about the overview on the external cylindrical grinding process.
The drilling machine or drill press is one of the most common and useful machine employed in industry for producing forming and finishing holes in a workpiece.
With Organized Outdoor Options, you can advertise in Orion Mall Bangalore : 9999163133/8860886720/8826335802
Visit us at http://www.organizedoutdoor.com
Rising Indian Music Stars Harshal Bhatt and Hemen BhattHarshal Bhatt
I have represented my whole musical journey here from just learning an instrument to making progress and creating my brand along with my brother.
.
Musical Brother was started by Harshal Bhatt in 2015 to enhance the musical experience. His brother, Hemen Bhatt took this venture to the next level with his writing, production, and instrumentalist skills. They create, and collab with other musicians for social media videos and on-stage performances. They encourage young musicians to join them and create various styles of music. Contact us For Query/ Performance/ Meet-Up at: themusicalbrother@gmail.com
Rising Indian Music Stars Harshal Bhatt and Hemen Bhatt
Conflicting nature between 2 wheel and 4 wheels drivetrain.pptHarshal Bhatt
This will help you to understand different wheel drive theories, why 2 wheel drive or 4 wheel drivetrain is used, and the conflicting nature between the two.
Experimental setup techniques for acoustic jury testing newHarshal Bhatt
This was my group project in my Master's at the University of Windsor. This project was guided by Dr. Colin Novak on the subject of Noise, Vibration, and Harshness.
Company Review is a topic from subject Contributors Personality Development.
Here I the company which I have taken is a famous consumer product company known as Hindustan Unilever Limited (HUL).
I hope this will help you to get all your required information plz like it and share it.
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Human Population And Environment by Harshal bhatt Harshal Bhatt
Hello Friends,
This ppt contains all the information regarding Environmental Studies and the subject of Human Population And Environment
too.
Here, I have tried to put areas such as
1.Population Growth and Its Variation
2.Causes
3.Effects
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You can win (Shiv Khera) Book Review - By Harshal BhattHarshal Bhatt
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This book review ppt is based on the book You can win which is written by famous book writer Shiv Khera.
It can be used by Engineering students and book lovers too.
I have provided almost all the information about the book and author
I hope u like it.
I hope this will help you to get all your required information plz like it and share it.
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The dual cycle is an important part of I mechanical engineering.
here I have to try to derive some of the rules and important parts.
such as,
1.History
2.Comparison Between Otto, Diesel and Dual Cycle
3.Dual Combustion Engine
4.Characteristics
5.Parts Of Engine
6.Stroke
7.Sequence of Operations
8.Expression For Efficiency
9.Applications
10.Automobile
11.Generators/Aircrafts
12.Marine Engines
I hope this will help you to get all your required information plz like it and share it.
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Youtube: Harshal Bhatt
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Mahabharat is one of the most important historical evidence for the Hindu religion.
here I have to try to inculcate some parts of it because it is not possible for me to include all of them as it is so big.
I hope this will help you to get all your required information plz like it and share it.
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Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
3. 3
Drilling is the process of cutting holes in
metals by using a drilling machine as shown
Drills are the tools used to cut away fine
shavings of material as the drill advances in a
rotational motion through the material.
Drilling is done by forcing a rotating drill into
stationary job as on a drilling machine or by
forcing stationary drill in a rotating workpeiece
as on a lathe.
Drilling also done by milling machine with a
drilling attachment. In this case the job is fed
onto rotating drill.
5. This type of drilling machine is can carried anywhere in shop.
So it is called portable.
The machine can be used for creating holes with work piece in
any position which is not possible with standard drilling
machines.
The entire machine is quite compact and handy.
Most of the portable drilling machines are operated by
individual motors contained in the machine. Some small
machines can be operated by hand.
6.
7. The column may be round or of box
section.
It can be raised or lowered along the pillar
depending upon the height of the job
clamped in position for rigidly.
The table in the case can be rotated about
its own axis and clamped in position.
The swivel of the table about the pillar and
rotation of the table about its center permits
easy location of the job under the drill.
9. A Gang drill machine has a number of drill
heads arranged with a common base and
table.
Each drill head has its own power unit and
carries a tool to perform an operation on a
job in sequence.
The spindle may be set up with drills of
different diameter or other tools as required.
The job is moved from one spindle to the
other spindle for performing various
operations.
Gang drilling machines are useful when
several different machining cuts with
different tool are to be taken on sufficiently
large number of work pieces.
10. Multi-spindle drilling machines with two
or more spindles driven by a common
head.
This machine are used for drilling a
numbers of holes simultaneously in a
work piece.
Multi-spindle machines are high
production rate machines and lead to
considerable saving for large quantity
jobs.
11. These are high performance automatic
machine designed for variety of operations
being done on the work piece.
A number of machines are arranged in series
to perform variety of different operations on
the work piece at successive work stations.
After one operation is completed at one
workstation the work piece is automatically
transferred to the next work station.
Because all operation are done automatically
the preciseness is higher and production time
is lower.
12. A drill bit is a multi-point tool and typically has a pointed end. A twist
drill is the most common type used.
Twist drills are available with parallel shanks up to 16mm diameter
and with taper shanks up to 100mm diameter
Standard lengths are known as jobber-series twist drills, short drills
are known as stub series, and long drills as long series and extra long
series.
Different helix angles are available for drilling a range of materials.
Manufactured from three main materials
1. Carbon-tool steels
2. High-speed steel
3. Cemented-carbide
16. Drilling is the operation of producing
circular holes in solid metal by rotating
the drill and feeding it through the job.
This is the main operation done on the
this machine.
Before starting the drilling it is necessary
to mark the position of the hole on the
work piece.
Drilling process is dose not produce
accurate hole. The center may not be
accurate, the size of the hole is slightly
larger than required.
17. Reaming is an operation of sizing and shaping a
hole using a tool called reamer.
A reamer as shown on figure is multitoothed tool
designed for remove relatively small amount of
material from a previously drilled hole.
Reaming is done to achieve accurate hole
dimension.
Initially a hole is drilled slightly smaller in size.
18. Boring is a process of aligning, sizing and
finishing a cylindrical hole.
It uses single point cutting tool which
rotates relative to the stationary work piece.
The hole can be aligned and sized with
good surface finish.
Boring is often used to enlarge the drilled
holes.
19. • Counter boring is the operation of enlarging one
end of an existing hole concentric with the original
hole with a square bottom as shown in figure.
• The counter tool known as counter bore has a pilot
as shown in figure.
• The pilot enters in previously drilled hole and align
the tool so that the counter bored hole is concentric
with the existing hole.
• The tool has end cutting edges square with the axis
to produce a flat bottom.
• Counter boring is used to recess a bolt head or a
nut below the surface to permit a mitting part to
operate with obstruction.
20. A countersink tool enlarges
the top portion of an existing
hole to a cone-shaped opening.
Countersinking is performed
after drilling to provide space
for the head of a fastener, such
as a screw, to sit flush with the
work piece surface.
Common included angles for a
countersink include 60, 82, 90,
100, 118, and 120 degrees.
21. Spot facing shown in figure is the process of
producing a flat machined surface generally
around a hole perpendicular to the hole axis.
This flat surface allows the bottom of a
screw or bolt to seat squarely with the
material.
Spot facing is commonly done on castings
where irregular surfaces are found.
Spot facing may be performed on a drill
press with a counter bore of suitable size for
the operation.
22. Tapping is a thread cutting for producing
internal threads.
Tapping uses multi- point cutting tool called
taps may be done manually or on machine
like drills.
The tapping attachment used with the drill
permits forward rotation of the tap when it is
cutting and fast reverse rotation for
withdrawal.
23. Trepanning is the process for making
large holes in sheet metal.
A small diameter hole is drilled in
center for drilling large diameter hole.
The pilot of trepanning tool is fitted
into this hole and the length of the
adjustable arm is set to the radius of
the hole to be cut.
Holes up to a diameter of 350 mm
can be cut by this arrangement.
24. The classification is as follow:
1. Machine Table Vice
2. Step Blocks
3. Clamps
4. V-Blocks
5. Angles
6. Jigs
7. T- Slots Bolt
25. Cutting Speed (v):-
It’s the peripheral speed of the drill
v = *D*N where
D = dia of the drill in m
N = Speed of rotation in rpm
Feed Rate (f):-
It’s the movement of drill along the axis (rpm)
Depth of Cut (d):-
The distance from the machined surface to the drill
d = D / 2
26. Material Removal Rate:-
It’s the volume of material removed by the drill per unit
time
MRR = ( D2 / 4) * f * N mm3 / min
Machining Time (T) :-
It depends upon the length (l) of the hole to be drilled ,
to the Speed (N) and feed (f) of the drill
t = L / f N min
28. Do not support the workplaces by hand. Use a holding device to
prevent the work piece from being tom from the operator’s hand.
Never make any adjustments while the machine is operating.
Never clean away chips with your hand. Use a brush.
Keep all loose clothing away from turning tools.
Make sure that the cutting tools are running straight before starting
the operation