DEPARTMENT OF PRODUCTION ENGINEERING HALDIA INSTITUTE OF TECHNOLOGY

LAB MANUAL ON

MACHINE DRAWING-I (ME 391)

CREDIT: 2

CONTACT HOURS / WEEK: 0-0-3

Syllabus

Machine Drawing-I (ME 391)

Schematic product symbols for standard components in mechanical, electrical and electronic systems, welding symbols and pipe joints; Orthographic projections of machine elements, different sectional views- full, auxiliary sections; Isometric projection of components; Assembly and detailed drawings of a mechanical assembly, such as a Plummer block, tool head of a shaping machine, tailstock of a lathe, welded pipe joints indicating work parts before welding, etc.

(At least six sheets must be drawn)

Books:

Text Book on Engineering Drawing, Narayana/ Kannaia H, Scitech.

Mechanical Engineering Drawing and Design, S. Pal and M. Bhattacharyya.

Machine Drawing by N.D. Bhatt.

Machine Drawing by P.S. Gill.

Course Outcome:

COS ME 391.

ME 391. 1

The incumbent will be able to demonstrate the knowledge/skill on schematic product symbols for standard components in mechanical, electrical and electronic systems, welding symbols and pipe joints, keeping in mind technical, economical, safety and legal issues.

ME 391. 2

The incumbent will be able to define, illustrate and to draw orthographic projections of machine elements, different sectional views analyzing and interpreting data using modern engineering tools and techniques leading to decision making in real time.

ME 391. 3

The incumbent will be able to apply the skill/knowledge on isometric projection of components adhering to the rules and regulations of safety, social, legal aspects, and cultural issues applicable to professional engineering practice.

ME 391. 4

The incumbent will be able to assembly and detailed drawings of a mechanical assembly, such as a Plummer block, tool head of a shaping machine, tailstock of a lathe, welded pipe joints indicating work parts before welding, etc. with an open mind for life-long learning and for the benefit of the organization as well as for the self.

ME 391. 5

The incumbent will be able to demonstrate and to interact effectively, via team-based laboratory activities, on a social and interpersonal level with fellow students, and will demonstrate the ability to divide up and share task responsibilities to complete assignments.

ME 391. 6 The incumbent will be able to use different modern software lie AutoCAD, CATIA to improve the accuracy and quality of the solutions and to reduce the time and effort.

CO-PO Correlation:

COS ME 391. PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12

ME 391. 1

The incumbent will be able to demonstrate the knowledge/skill on schematic product symbols for standard components in mechanical, electrical and electronic systems, welding symbols and pipe joints, keeping in mind technical, economical, safety and legal issues.

3 3 3 3 3 1 3 3 3 3 3 3

ME 391. 2

The incumbent will be able to define, illustrate and to draw orthographic projections of machine elements, different sectional views analyzing and interpreting data using modern engineering tools and techniques leading to decision making in real time.

1 3 3 1 3 3 3 3 3 3 3 3

ME 391. 3

The incumbent will be able to apply the skill/knowledge on isometric projection of components adhering to the rules and regulations of safety, social, legal aspects, and cultural issues applicable to professional engineering practice.

2 2 3 2 3 2 2 3 2 2 2 2

ME 391. 4

The incumbent will be able to assembly and detailed drawings of a mechanical assembly, such as a Plummer block, tool head of a shaping machine, tailstock of a lathe, welded pipe joints indicating work parts before welding, etc. with an open mind for life-long learning and for the benefit of the organization as well as for the self.

3 3 3 3 2 3 3 3 3 3 3 3

ME 391. 5

The incumbent will be able to demonstrate and to interact effectively, via team-based laboratory activities, on a social and interpersonal level with fellow students, and will demonstrate the ability to divide up and share task responsibilities to complete assignments.

3 3 2 3 3 3 3 3 3 3 1 3

ME 391. 6

The incumbent will be able to use different modern software lie AutoCAD, CATIA to improve the accuracy and quality of the solutions and to reduce the time and effort.

3 3 3 3 3 3 3 3 3 1 3 3

* Enter correlation levels 1, 2 or 3 as defined below: 1: Slight (Low) 2: Moderate (Medium)3: Substantial (High) and It there is no correlation, put “-”

2.50 2.83 2.83 2.50 2.83 2.50 2.83 3.00 2.83 2.50 2.50 2.83

CO-PSO Correlation:

COS ME 391 PSO1 PSO2 PSO3

ME 391 1

The incumbent will be able to demonstrate the knowledge/skill on schematic product symbols for standard components in mechanical, electrical and electronic systems, welding symbols and pipe joints, keeping in mind technical, economical, safety and legal issues.

2 3 3

ME 391 2

The incumbent will be able to define, illustrate and to draw orthographic projections of machine elements, different sectional views analyzing and interpreting data using modern engineering tools and techniques leading to decision making in real time.

3 2 3

ME 391 3

The incumbent will be able to apply the skill/knowledge on isometric projection of components adhering to the rules and regulations of safety, social, legal aspects, and cultural issues applicable to professional engineering practice.

3 3 3

ME 391 4

The incumbent will be able to assembly and detailed drawings of a mechanical assembly, such as a Plummer block, tool head of a shaping machine, tailstock of a lathe, welded pipe joints indicating work parts before welding, etc. with an open mind for life-long learning and for the benefit of the organization as well as for the self.

3 3 3

ME 391 5

The incumbent will be able to demonstrate and to interact effectively, via team-based laboratory activities, on a social and interpersonal level with fellow students, and will demonstrate the ability to divide up and share task responsibilities to complete assignments.

2 3 1

ME 391 6 The incumbent will be able to use different modern software lie AutoCAD, CATIA to improve the accuracy and quality of the solutions and to reduce the time and effort.

3 2 2

* Enter correlation levels 1, 2 or 3 as defined below: 1: Slight (Low) 2: Moderate (Medium)3: Substantial (High) and It there is no correlation, put “-”

2.67 2.67 2.50

CO-ASSIGNMENT CORRELATION MAP:

COS ME 391. A-O1 A-O2 A-O3 A-O4 A-O5 A-O6 A-O7

ME 391. 1

The incumbent will be able to demonstrate the knowledge/skill on schematic product symbols for standard components in mechanical, electrical and electronic systems, welding symbols and pipe joints, keeping in mind technical, economical, safety and legal issues.

ME 391. 2

The incumbent will be able to define, illustrate and to draw orthographic projections of machine elements, different sectional views analyzing and interpreting data using modern engineering tools and techniques leading to decision making in real time.

ME 391. 3

The incumbent will be able to apply the skill/knowledge on isometric projection of components adhering to the rules and regulations of safety, social, legal aspects, and cultural issues applicable to professional engineering practice.

ME 391. 4

The incumbent will be able to assembly and detailed drawings of a mechanical assembly, such as a Plummer block, tool head of a shaping machine, tailstock of a lathe, welded pipe joints indicating work parts before welding, etc. with an open mind for life-long learning and for the benefit of the organization as well as for the self.

ME 391. 5

The incumbent will be able to demonstrate and to interact effectively, via team-based laboratory activities, on a social and interpersonal level with fellow students, and will demonstrate the ability to divide up and share task responsibilities to complete assignments.

ME 391. 6

The incumbent will be able to use different modern software lie AutoCAD, CATIA to improve the accuracy and quality of the solutions and to reduce the time and effort.

ASSIGNMENT NO-1:

Ideation of Orthographic Projections of machine components.

ASSIGNMENT NO-2: Ideation of Isometric Projections of machine components.

ASSIGNMENT NO-3: Ideation of Sectional Views and Auxiliary views.

ASSIGNMENT NO-4:

Schematic product symbols for standard components in mechanical, electrical and electronic systems.

ASSIGNMENT NO-5: Schematic product symbols for welding

ASSIGNMENT NO-6: Schematic product symbols and constructional features of pipe joints

ASSIGNMENT NO-7: Assembly of different mechanical Components.

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/01

Ideation of Orthographic Projections of machine components.

Figure: 01

Figure: 02

Figure : 03

Figure : 04

Figure :05 Figure 06

Fig 1: Draw plan, elevation, and right side view in first angle. Fig 2: Draw plan, elevation, and right side view in third angle. Fig 3: Draw plan, elevation, and right side view in first angle. Fig 4: Draw plan, elevation, and left side view in third angle. Fig 5: Draw plan, elevation, and left side view in first angle. Fig 6: Draw plan, elevation, and left side view in third angle.

Dimensioning should be done in aligned method for Fig 1, 2, 3 and unidirectional method for Fig 4, 5 and 6.

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/02

Ideation of isometric projections of machine components. Draw the isometric view of the followings

Fig 1

Fig 2

Fig 3

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/03

Ideation of Sectional Views and Auxiliary views

sectional View explaining the meaning

1. Full Sectional View:

2. Half Sectional View:

3. Broken Sectional View:

4. Aligned Section:

5. Offset Section:

6. Conventional Break Symbols:

7. Multiple Sections:

8. Removed Section:

9. Revolved Section:

10. Multiple Removed Sections:

11. Section of Ribs:

Assignment 1: Draw the full sectional assembled view of the protected type flange coupling using metric threaded hexagonal headed bolt with square nut. Only the socket end has been depicted. Show

the keys on the assembly, which are at a phase of 90.

Assignment 2: In this figure certain surface symbols have been shown. This also gives an idea of auxiliary view. Copy this figure knowing the relevance.

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/04

Schematic product symbols for standard components in mechanical, electrical and electronic systems.

Symbolic representation of Mechanical Systems

a) Kinematic Drives and components

Spur/Helical Gears

Compound Gear Train

Gear Mounting

Open Flat belt

Bevel Gear

Crossed Flat belt

Worm worm Wheel

Chain and Sprocket

Spiral (Crossed Helical) Gears

Vee Belt drive

Simple Gear Train with Idler

Rack and Pinion

Motor

Cam drive

A typical mechanism of Fellow's Gear shaping has been shown below. Copy the figure knowing fully well the symbol

graphics for different machine elements. Convert all the symbols to present IS convention. (Ref: Principles of Machine

tool. Sen and Bhattacharya)

Typical examples of machine kinematics with mechanical circuit diagram

b) Hydraulic System Components:

Typical examples of Hydraulic Circuits with circuit diagram

c) Electrical and Electronic System Components:

Schematic Product Symbols for Standard Components in Electrical Systems

Schematic Product Symbols for Standard Components in Electronic Systems

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/05

Schematic product symbols for welding

1. Welding Symbols with Designation, Illustration, Representation, and Symbolization

2. Welding Symbols with Designation, Illustration, Representation, and Symbolization

3. Welding Symbols with Designation, Illustration and Representation on Drawing

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/06

Schematic product symbols and constructional features of pipe joints

1. Study the different symbolic representation of pipe joints and realize the physical form of the same.

2. Study of different pipe joints (Nipple joint, Socket joint, Taper Pipe joint, Welded pipe joints, Flanged pipe joint, spigot and socket pipe joint, hydraulic pipe joints, Union joints, Expansion joints with all important proportional dimensions) and fittings.

3. Fig. 1 depicts a hydraulic joint with proper dimensions. Copy the figure knowing fully well the detailed constructional feature.

Fig 1. Orthographic view of a hydraulic pipe joint

4. Fig. 2 depicts a Union joint with proper dimensions. Copy the figure knowing fully well the detailed constructional feature.

Fig 2. Orthographic view of a Union pipe joint

Haldia Institute of Technology

Department of Production Engineering Sub: Machine Drawing-I (ME-391)

Assignment No: ME 391/07

Assembly Drawing of Machine Parts

1. Draw the assembly drawing of the plummer block.

2. The details of a lathe tail stock are given hereunder. Draw the assembled sectional view of the tail stock and

balloon them. Also make a complete list of material. (See P. S. Gill pp 665: 17th edition, 2001)

3. The detail of a Clapper box is given hereunder. Draw the assembled full sectional view of the Clapper box in the

in the direction of main stroke. Also make a complete list of material. (See P. S. Gill pp 675: 17th edition, 2001).