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MECHANICAL
TECHNOLOGY

by
L. B. Pandya

The topics covered in this text include materials of construction, timber, various kinds of joints, and hand tools used in pattern making shop, foundry, fitting shop, smithy shop, etc.

Elementary idea regarding the processes such as heat treatment, soldering, brazing and welding is given. The instruments of measurements have been also briefly described.

It covers the First course in Mechanical Technology for Degree as well as Diploma classes.
Price : Rs. 45-00    
Edition : Fourth Revised and Enlarged Edition
Book Size : 135 mm × 210 mm
Binding : Half-cloth Hard-Bound with Two Colour Jacket Cover
Pages : 238 + 12
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CONTENTS

Chapter 1   : MATERIALS OF CONSTRUCTION

Chapter 2   : TIMBER

Chapter 3   : CARPENTRY TOOLS

Chapter 4   : JOINERY

Chapter 5   : FASTENINGS

Chapter 6   : WOOD WORKING MACHINERY

Chapter 7   : PATTERN MAKING

Chapter 8   : FOUNDRY

Chapter 9   : SMITHY AND FORGING

Chapter 10 : BENCH WORK

Chapter 11 : HEAT TREATMENT OF STEELS

Chapter 12 : SOLDERING, BRAZING AND WELDING

Chapter 13 : PIPES AND PIPE JOINTS

Chapter 14 : MEASURING TOOLS OF MACHINE SHOPS

Next>>

CONTENTS

Chapter 1 : MATERIALS OF CONSTRUCTION

1-1
1-2
1-3
1-4
1-5
1-6

Classification
Mechanical properties of materials of construction
Determination of mechanical properties
Ferrous metals - cast iron and wrought iron
Steel
Alloy steels
  Carbon steels
Alloy steels
Nickel steel
Chromium steel
Manganese steel
1-7 Non-ferrous metals and alloys
  Copper
Zinc
Copper-Zinc alloys
Tin
Bronze
Gunmetal
Phosphor bronze
Aluminiam and its alloys
1-8 Non-metallic materials
Table 1 : VARIOUS USES OF STEEL
Table 2 : VARIOUS USES OF METAL ALLOYS
Questions

Chapter 2 : TIMBER

2-1
2-2
2-3
2-4
2-5
2 -6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15

Definition
Classification
Structure of a timber tree
Characteristics of a good timber
Felling of timber trees
Seasoning of timber
Defects in timber
Decay of timber
Conversion of timber
Timber trees of India and their uses
Market forms of timber
Preservation of timber
Veneers and plywoods
Fibre boards
Uses of timber
Questions

Chapter 3 : CARPENTRY TOOLS

3-1

Kinds of tools

(i)
(ii)
(iii)
(iv)
(v)
(vi)
Marking tools
Cutting tools
Boring tools
Planing tools
Hammers and screw drivers
Holding and supporting tools
3-2
3-3
3-4
3-5
3-6
3-7
Marking tools
Cutting tools
Boring tools
Planing tools
Fixing tools
Holding and supporting tools
Questions

Chapter 4 : JOINERY

4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11

Introduction (Processes)
Planing
Marking
Sawing
Boring
Rebating
Grooving and tongueing
Tenoning and mortising
Moulding
Recessing
Joints - Introduction
(i)
(ii)
(iii)
(iv)
Tensile
Compressive
Shear
Torsion
4-12
Classification of joints
(i)
(ii)
(iii)
(iv)

Widening joints
Angle and bearing joints
Lenghtening joints
Hinging and shutting joints

4-13
4-14
4-15
4-16
4-17
4-18
General principles
Methods of joining
Side or widening joints
Angle joints
Lengthening joints
Hinging and shutting joints
Questions

Chapter 5 : FASTENINGS

5-1
5-2
5-3

Introduction
Fastening

Glue
  Animal glue
Liquid glue
Casein glue
Vegetable glue
Vegetable-protein glue
Blood albumin glue
Questions

Chapter 6 : WOOD WORKING MACHINERY

6-1
6-2

Introduction
Saws
(a)
(b)
(c)
(d)
Log Frame sawing machines
Fret saw or jig saw
Circular saw
The band saw
6-3
6-4
Planning machines
Mortising machines
(i)
(ii)
Chain mortasing
Square chisel mortasing
6-5 Other machines
(a)
(b)
(c)
(d)
(e)
(f)
Tenoning machines
Moulding machines
The routers
Sand papering machines
Nailing machines
Dust extracting machines
Questions

Chapter 7 : PATTERN MAKING

7-1
7-2
7-3
7-4
7-5

Definition
Fundamental moulding operations
Factors affecting pattern design
Parting lines
Types of patterns
(a)
(b)
(c)
(d)
(e)
(f)
(g)
Solid or one piece pattern
Two piece pattern or split pattern
Multiple part pattern
Skeleton pattern
Section pattern
Patterns with loose pieces
Patterns without follow boards
7-6
7-7
7-8
7-9
7-10
7-11
7-12
7-13
Pattern allowances
Shrinkage allowances
Draft
Finish
Machining provisions
Allowance to overcome warp
Allowance for rapping
Pattern making tools
(i)
(ii)
(iii)
(iv)
(v)
(vi)
Measuring and layout tools
Sawing tools
Planing tools
Boring tools
Clamping tools
Miscellaneous tools
7-14
7-15
7-16
Machines used in pattern makillg
Pattern making materials

Shellac
Questions

Chapter 8 : FOUNDRY

8-1

Introduction
(a)
(b)
(c)
(d)
Metals
Fuels
Fluxes
Refractories
8-2
8-3

Moulding process
Moulding tools

(i)
(ii)
(iii)
(iv)
(v)
(vi)
Brushes
Spikes
Smootheners
Rammers
Hand blowers
Cast iorn moulding boxes
8-4
Types of moulding
(i) Green sand moulding
(a)
(b)
(c)
Turning over
Bedding in
Open sand moulding
(ii)
(iii)
(iv)
Dry sand moulding
Loam moulding
Plate and machine moulding
8-5
8-6
8-7
Sands
Casting process
Defect in casting
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)

Drawing
Hole
Scabbing
Honeycombing
Cold short
Lift and shifts
Swelling
  
8-8
8-9
8-10

8-11
8-12
Casting metals
Melting furnaces
Cupola
Ladles
Inspection of casting
Questions

Chapter 9 : SMITHY AND FORGING

9-1
9-2
9-3
9-4
9-5
9-6
9-7
9-8
9-9
9-10
9-11
9-12
9-13
9-14
9-15
9-16
9-17
9-18
9-19
9-20
9-21

Introduction
Smithing and forging
Equipment of a smithy shop
Tools used in a smithy shop
Striking tools
Holding tools
Cutting tools
Punching and drifting tools
Forming and finishing tools
Resting or supporting tools
Measuring and testing tools
Forging operations
Upsetting or jumping
Drawing down
Setting down
Cutting out
Bending
Welding
Punching and drifting
Riveting
Simple examples of forging
Questions

Chapter 10 : BENCH WORK

10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
10-13

Introduction
Hammers
Screw drivers
Wrenches
Hacksaw
Laying out
Chipping
Files and filing
Scraping
Drills and drilling
Reamers
Tapping
Grinding
Questions

Chapter 11 : HEAT TREATMENT OF STEELS

11-1
11-2
11-3
11-4
11-5
11-6
11-7
11-8
11-9
11-10
11-11
11-12
11-13
11-14

Introduction
Composition of carbon steel
Mechanical treatment of steel
Rolling
Drawing
Pressing
Forging
Extrusion
Heat treatment processes
Annealing
Normalising
Hardening
Tempering
Case hardening
  Precautions in case hardening
process
11-15
11-16
Drawing
Temperatures of metals represented by various colours
Questions

Chapter 12 : SOLDERING, BRAZING AND WELDING


12-1

12-2
12-3
12-4

12-5
12-6
12-7
12-8
1
2-9
12-10
12-11
12-12
12-13
12-14
12-15
12-16
12-17
12-18

SOLDERING
Introduction
BRAZING
Introduction
Silver soldering
Brazing of tipped tools
WELDING
Introduction
Precautions
Comparative study of different types of welding work
Electric welding
Welding tools
Choice between AC and DC machines
Cables
Faults in welder’s circuits
Fluxes
Tests
Carbon arc welding
Atomic hydrogen welding
Safety regulations
Acetylene gas welding

 

12-19

LOW PRESSURE SYSTEM
HIGH PRESSURE SYSTEM
Gas cutting
Questions

Chapter 13 : PIPES AND PIPE JOINTS

13-1
13-2
13-3
13-4
13-5
13-6

General
Pipe cutting
Pipe threading
Pipe bending
Pipe fitting
Lead pipe fittings
Questions

Chapter 14 : MEASURING TOOLS OF MACHINE SHOPS

14-1
14-2
14-3
14-4
14-5
14-6
14-7
14-8
14-9
14-10
14-11
14-12
14-13
14-14

Rules and scales
Calipers
Dividers and trammels
Micrometers
Verniers
Combination set
Sine bar
Gauges
Plug gauges
Snap gauges
Other gauges
Slip gauges or gauges blocks
Dial indicators
Kinds of tools
Questions