In this PPT fully study about DRILLING MACHINES and BORING MACHINES covered by M.M.RAFIK.

1. Topic:
Drilling machines
&
Boring machines
Guided by - A . C .Gohil Sir Created by :
- M .M .Rafik . j
M.M.RAFIK.J

2. Introduction
Drilling machine
 The drilling machine is one of the most
important machine tools in a workshop.
In a drilling machine holes may be drilled
quickly and at a low cost.
The hole is generated by the rotating edge of
cutting tool is known as “drill”.
Holes were drilled by the Egyptians in 1200 B.C.
about 3000 years ago by bow drills.
The bow drill is the mother of present day metal
cutting drilling machine.

3. Boring machine
The boring machine is one of the most
versatile machine tools used to bore
holes in large and heavy parts like as
engine frames , steam engine cylinders,
machine housings , etc.
Which are practically impossible to
hold and rotate in an engine lathe or a
drilling machine.
M.M.RAFIK

4. Drilling machine
In general case drilling machines used to
drill holes in light weight and small parts like
small metal round bars , small metal sheets ,
small parts of machines , etc.
Boring machine
But, here boring machines used to bore holes
in large and heavy parts like engine frames ,
steam engine cylinders , machine housings , etc.
Now day we can perform various operations
like screw cutting , turning ,gear cutting on
boring machine by help of simple attachments.

5. Types of Drilling machine
1. Portable drilling machine.
2. Sensitive drilling machine.
a)Bench mounting , b)Flour mounting
3.Upright drilling machine.
4.Radial drilling machine.
a)Plain, b)Universal, c)Semi-universal.
5.Gang drilling machine.
6.Multiple spindle drilling machine.
7.Automatic drilling machine.
8.Deep hole drilling machine.
a)Vertical , b)Horizontal.

6. Drilling machines & it’s Mechanism

7. Drilling machines

8. Drilling machines

9. Types of Boring machine
1. Precision boring machine.
2. Horizontal boring machine.
a)Table type , b)Floor type ,
c)Planer type , d)Multiple head type.
3. Vertical boring machine.
a) Vertical turret lathe ,
b)Standard vertical boring machine.
4. Jig boring machine.
a)Vertical milling machine type,
b)Planer type.

10. Precision boring machine
The precision boring machine uses single
point tools to machine surfaces rapidly and
accurately.
Cemented carbide and diamond tipped single
point tools are operated at a very high cutting
speed to produce accurately sized holes with a
fine surface finish.
The feeding movement may be provided by
tool or by the work.
The machine may be vertical or horizontal
type.

11. High Precision boring machines

12. CNC –Precision boring machines

13. Precision
Boring
Machine

14. Vertical boring machine

15. Horizontal Table type boring
machines

16. Horizontal Boring machines
In this type of machine , the work is
supported on table which is stationary and the
tool revolve in a horizontal axis.
A horizontal boring machine can perform
boring , reaming , turning , threading , facing ,
milling , grooving , recessing and many other
operations with suitable tools.
Horizontal boring machine can be able to held
heavy , irregular, unsymmetrical or bulky
workpieces.
Different types of horizontal boring machines
have been designed for different purposes.