The document summarizes a student project on removing impure layers through abrasive shot blasting. It discusses the shot blasting process which uses compressed air or gravity to propel abrasive materials like sand or glass beads to clean surfaces. Key components of shot blasting systems and factors affecting the process are outlined. Applications include cleaning metals and producing decorative finishes. The document also covers safety precautions for the process.

1. DEPARTMENT OF MECHANICAL ENGINEERING
Project on-
‘REMOVAL OF UNPURE LAYER BY
ABRASIVE SHOT BLASTING’
Presented By-
Bhavsar Yogesh G.
Patil Rajesh S.
Samudre Shekhar M.
Waghmare Pravin P.
Guided By
Prof S.R.Chaudhari

2. Introduction
 Shot Blasting is a surface treatment process using high
stream of abrasive material.
 Mechanical force is used to propel blast media such as
sand, sponge or glass beads at the surface to be
cleaned to remove contaminants such as paint ,rust,
corrosive layer etc.
 Can be performed in closed environments like blasting
chambers or cabinets, or on open sites such as
buildings, bridges, tanks, boats or mobile plant.

3. LITERATURE REVIEW-
TITLE OF PAPER AUTHOR
NAME
YEAR CONCLUSION
REVIEW ON SHOT BLASTING
PROCESS
MITUL MALII 2014 SPACE IS REQUIRED BETWEEN TWO
FLIGHTS DUE TO ARRANGEMENT OF
ROLLING CONVEYOR FOR
TUMBLING THE COMPONENTS.
BECAUSE OF THE SPACE
COMPONENTS WITH THIN SECTION
MAY TRAP BETWEEN TWO
CONSECUTIVE PLATES.
METHODOLOGY OF TESTING
SHOT BLASTING MACHINES
IN INDUSTRIAL CONDITIONS
R.WRONA
A et all
2012 VARIETY OF PROCESS IMPLIES
EFFECTIVE USE OF SHOT
BLASTING PROCESS IN
INDUSTRIES
THE RESEARCH OF
QUATERNITY OF DRILLING-
BLASTING-FRACTURING-
EXTRACTING TECHNOLOGY
ZHOU
CHAOA et
al
2011 DRILLING-BLASTING FRACTURING-
EXTRACTING INTEGRATION
TECHNOLOGY IMPROVES GAS
DRAINAGE VOLUME AND SPEED OF
CONSTRUCTION THAT WILL
BECOME A MATURE AND
EFFECTIVE TECHNOLOGY.
INVESTIGATIONS ON THE
MACHINE PARTS TREATMENT
T.O.
Stefanovyc
2011 THE OPERATIONS OF FORCIBLY
PROPELLING A STEAM OF

4. Components
Shot blasting systems are comprised of 6 basic subsystems:
1. Abrasive powder delivery method(Hopper):
By Compressed Air & Gravity
2. P U Pipes & Nozzles
3. Blast Cabinet
4.Motor Mechanism for holding job
5.Dust collector & Blower
6. Part movement and support system.

5. Working
• The process involves using high pressure to blast fine bits of
abrasive material onto the surface.
• It is a surface treatment process which involves projecting beads
on the work piece to change its surface state.

6. Advantages
 Low Energy Demands
 High Quality Of Treated Surfaces
 Good Potentials For Process Automation For
Cleaning Surfaces Such As Steel, Bricks, Cement
And Concrete
 Obtain Excellent Cleaning And Surface
Preparation For Secondary Finishing Operations
 Removal of corrosion on metals in industrial
processes.

7. Applications
 Cleaning a surface by removing unwanted rust,
scale, paint, etc.
 Change metallurgical properties or stress relieve a
part by the peening action of multiple impactions.
 Mechanical cleaning of iron, steel, non-cast
parts, forgings, sheets, rods, coils, wire, etc.
 Produce a desired matte or decorative finish.

8. Factors Affecting The Shot
Blasting Process
 Initial condition of the component – material and
contamination
 Velocity of abrasive
 Size (and shape) of abrasive
 Hardness of abrasive
 Revolving speed of work piece

9. Safety & Precautions
 Use a less-toxic abrasive material
 Use exhaust ventilation systems in containment
structures to capture dust
 Use perfectly isolated blast rooms or blast cabinets
 Implementation of Personal Protective Equipment

10. Activity plan
MONTHS JULY
2015
AUG
2015
SEPT
2015
OCT
2015
NOV
2015
DEC
2016
JAN
2016
FEB
2016
MAR
2016
APR
2016
ACTIVITY
Selction of topic
Literature
collection
Preparation of
literature review
Material
procurement
Fabrication
Report
preparation
Report submission