A PROJECT REPORT ON “MODELLING AND DRAFTING OF THE SUPPORT COMPONENT OF A AIR FRAME IN A MISSILE” Submitted in partial fulfillment of the requirement for the award of degree of BACHELOR OF TECHNOLOGY IN MECHANICAL ENGINEERING SUBMITTED BY SUSHANG SHAH - 105D1A03A4 Under the Esteemed Guidance of Mr. R. SURENDRA RAO (Asst. Professor, Mechanical Engineering Department) DEPARTMENT OF MECHANICAL ENGINEERING KASIREDDY NARAYAN REDDY COLLEGE OF ENGINEERING & RESEARCH (Affiliated to JNTUH, Hyderabad) 2010 – 2014
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A
PROJECT REPORT
ON
“MODELLING AND DRAFTING OF THE SUPPORT
COMPONENT OF A AIR FRAME IN A MISSILE”
Submitted in partial fulfillment of the requirement for
the award of degree of
BACHELOR OF TECHNOLOGY
IN
MECHANICAL ENGINEERING
SUBMITTED BY
SUSHANG SHAH - 105D1A03A4
Under the Esteemed Guidance of
Mr. R. SURENDRA RAO
(Asst. Professor, Mechanical Engineering Department)
DEPARTMENT OF MECHANICAL ENGINEERING
KASIREDDY NARAYAN REDDY COLLEGE OF ENGINEERING
& RESEARCH
(Affiliated to JNTUH, Hyderabad)
2010 – 2014
ACKNOWLEDGEMENT
A report work of this magnitude is not possible without the help of several
people directly or indirectly. It is with immense satisfaction that I present our practical
experience in the form of a project we carried out in RAMTECH
MANUFACTURING INDUSTRIES
I am grateful to Prof. Mr. S. AMARESH BABU, PRINCIPAL, KNRCER
for giving me the permission to carry out my project work at RAMTECH
ENGINEERING SERVICES.
I take this opportunity to thank Mr. D. MADHAV REDDY, Associate
Professor and Head of the Department of Mechanical Engineering for his
encouragement throughout the project work.
I wish to express my sincere and profound gratitude to Sri V.R.SUNIL
KUMAR, MD (RAM TECH Manufacturing Industries), Sri K.KISHORE KUMAR
REDDY, Design Engineer (RAM TECH Engineering Services), Sri M.SUNIL,
Master Technician (RAM TECH Manufacturing Industries) and M. MAHESH
KUMAR, project guide (RAM TECH Engineering Services), for guiding me and
providing valuable suggestions for the completion of my project.
I also express my sincere thanks to Mr. R. SURENDRA RAO, Assistant
Professor, Department of Mechanical Engineering for guiding me at every stage of
my project work.
SUSHANG SHAH -
105D1A03A4
CONTENTS
Abstract III
List of Figures IV
List of Tables V
1. INTRODUCTION 01 - 05
1.1 Methodology 01
1.2 Computer Aided Design (CAD) 02
1.3 Types of CAD software 03
1.4 Design process 04
2. INTRODUCTION TO UNIGRAPHICS 06 - 11
2.1 About UNIGRAPHIS 06
2.2 History of NX 07
2.3 NX 7.5 for design 07
2.4 NX 7.5 for manufacturing 08
2.5 NX 7.5 for simulation 09
2.5.1 NX 7.5 Nastran 10
2.6 Advantages 11
3. MISSILE 12 - 18
3.1 Types of missiles 12
3.1.1 Surface-Surface/Air-Surface 12
3.1.2 Surface-Air/Air-Air 13
3.2 Parts of missile 14
3.3 Use of coupler in different missiles 16
4. SUPPORT COMPONENT (TUBE COUPLER) 19 - 32
4.1 Introduction 19
4.2 Material used to manufacture 19
4.3 Drafting sheet of the component 21
4.4 Modeling of the object 23
5. CONCLUSION 33
6. REFERENCES 34
ABSTRACT
MODELLING AND DRAFTINGOF THE SUPPORT
COMPONENT OF A AIR FRAME IN A MISSILE
In manufacturing, the goal is to produce components that meet the design
specifications. The design specification ensures the functionality aspect. Next step to
follow is to assemble these components into final product. Process planning acts as a
bridge between design and manufacturing by translating design specification into
manufacturing process detail.
A missile is a self-propelled guided weapon system. Missiles have four system
components: targeting and/or guidance, flight system, engine, and warhead. Missiles
come in types adapted for different purposes: surface-to-surface and air-to-surface
(ballistic, cruise, anti-ship, anti-tank), surface-to-air (anti-aircraft and anti-ballistic),
air-to-air, and anti-satellite missiles.
Support is used to hold the air frame and other circuit parts in of a missile. Its
acts as a centre hanger or a tube coupler for a body tube and a launch lug of a missile.
The component is drafted and modeled using UNGRAPHICS (UGNX-7.5) by
Siemens
LIST OF FIGURES
Fig. No. Name Page No.
1.1 Design procedure cycle. 05
2.1 NX 7.5 cover 06
3.1 Parts of a missile. 14
3.2 Couple or support position outside of
the missile. 17
3.3 Support or tube coupler inside the missile. 17
4.1 Drafting sheet of the support component. 22
4.2 2D sketch of the section of the component. 23
4.3 Using revolve command. 24
4.4 Sketching a hole on the selected plane. 25
4.5 Making hole using extrude command. 26
4.6 It shows the holes at different angles. 27
4.7 Generated the holes at the given angles upto
some depth. 28
4.8 Making the counter sunk hole. 29
4.9 Chamfer on the outside edge of
the component on both sides. 30
4.10 Chamfer on the inside of the component. 31
4.11 Front view of the final product. 32
4.12 3D view of the component. 32
LIST OF TABLES:
Fig. No. Name Page No.
4.1 Wrought Al alloy composition limits(% weight). 20
4.2 Minimum tensile requirements for cast Al alloys. 20
ABSTRACT
MODELLING AND DRAFTING OF THE SUPPORT
COMPONENT OF AIR FRAME IN A MISSILE
In manufacturing, the goal is to produce components that meet the design
specifications. The design specification ensures the functionality aspect. Next step to
follow is to assemble these components into final product. Process planning acts as a
bridge between design and manufacturing by translating design specification into
manufacturing process detail.
A missile is a self-propelled guided weapon system. Missiles have four system
components: targeting and/or guidance, flight system, engine, and warhead. Missiles
come in types adapted for different purposes: surface-to-surface and air-to-surface
(ballistic, cruise, anti-ship, anti-tank), surface-to-air (anti-aircraft and anti-ballistic),
air-to-air, and anti-satellite missiles.
Support is used to hold the air frame and other circuit parts in of a missile. Its
acts as a centre hanger or a tube coupler for a body tube and a launch lug of a missile.
The component is drafted and modeled using UNGRAPHICS (UGNX-7.5) by
Siemens
1. INTRODUCTION
1.1 METHODOLOGY :
Process planning refers to the product design and decides how to manufacture it
within the resource constraints. Process planning can be seen as an activity which
integrates knowledge about products and resources.
Manufacturing process planning is the process of selecting and sequencing
manufacturing processes such that they achieve one or more goals and satisfy a set of
domain constraints.
Process planning is a production organization activity that transforms a product
design into a set of instruction (sequence, machine tool setup etc.) to manufacture
machined part economically and competitively. The information provided in design
includes dimensional specification (geometric shape and its feature) and technical
specification (tolerance, surface finish etc.)
My project deals with the drafting and modeling of “support” component using
CAM software (‘UGNX-7.5’ which is a CAD/CAM software used to generate part
program by designing and feeding the geometry of the component) and defining the
proper tool path and thus transferring the generated part program to the required CNC
machine with the help of DNC lines and manufactured. Then the program is executed
with suitable requirements.
The component can be either designed in UG or can be retrieved from any other
CAD software. Then sequence of programs such as modeling the component,
selection of tools according to the sequence of operations and sizes, generating the
tool path, at last the generated NC part program is verified and sent to the required
CNC machine to manufacture the particular component. Finally the required surface
finish has been obtained by machining the component at optimum speeds and feeds
and the cost of machining is also optimized by choosing optimal machining process
and machine tools.
1.2 COMPUTER AIDED DESIGN (CAD):
Today’s industries cannot survive worldwide competition unless they
introduce new products with better quality, at lower cost, and with shorter lead time.
Accordingly, they have tried to use the computer’s huge memory capacity, fast
processing speed, and user-friendly interactive graphics capabilities to automate and
tie together otherwise cumbersome and separate engineering or production tasks, thus
reducing the time and cost of product development and production. Computer-aided
design (CAD), computer-aided manufacturing (CAM), and computer-aided
engineering (CAE) are the technologies used for this purpose during the product
cycle. Thus, to understand the role of CAD, CAM, and CAE, we need to examine the
various activities and functions that must be accomplished in the design and
manufacture of a product.
Throughout the history of our industrial society, many inventions have been
patented and whole new technologies have evolved. Perhaps the single development
that has impacted manufacturing more quickly and significantly than any previous
technology is the digital computer. Computers are being used increasingly for both
design and detailing of engineering components in the drawing office.
Computer-aided design (CAD) is the use of computer technology for the
design of objects, real or virtual. CAD often involves more than just shape. As in the
manual drafting of technical and engineering drawings, the output of CAD often must
convey also symbolic information such as materials, processes, dimensions, and
tolerances, according to application-specific conventions.
The first step in preparing a process plan is to secure a good drawing or
drawings of the project. Because the drawings represent the initial ideas and plans for
the product, “The design of production processes starts with the product designer”
(Wright, 1990, p. 412). In many schools today, computer-aided drafting (CAD) is
taught and can be used to create the student’s ideas into quality, dimensioned
drawings with achievable specifications. Either manual or CAD drawings are suitable
as long as students know how to read and interpret them. The dimensioned drawings
should contain important information including the following: complete and clear
graphics, material types, part name, drawing number, owner name, date, units,
appropriate set of views showing all required dimensions, tolerances with reasonable
values for each dimension, clear titles and labels, and should be easy to read.