Skip to main content

SYLLABUS SIXTH SEMESTER/KURUKSHETRA UNIVERSITY - COMPUTER AIDED DESIGN AND MANUFACTURING

SYLLABUS SIXTH SEMESTER/KURUKSHETRA UNIVERSITY - COMPUTER AIDED DESIGN AND MANUFACTURING 

B.TECH. (SIXTH SEMESTER) MECHANICAL ENGINEERING
ME 308 E COMPUTER AIDED DESIGN AND MANUFACTURING 

Total Theory: 100 Marks         Sessional: 50 marks    Duration of Exam: 03 hours

UNIT I
Introduction to CAD/CAM, Historical Development, Industrial look at CAD/CAM, Introduction to CIM Basic of Geometric & Solid modeling, Coordinate systems, Explicit, Implicit, Intrinsic and parametric equation
Part families, Part classification and coding, product flow analysis, Machine cell Design, Advantages of GT

UNIT II
Introduction, Transformation of points & line, 2-D rotation, Reflection, Scaling and combined transformation, Homogeneous coordinates, 3-D scaling, shearing, rotation, reflection and translation, combined transformations, Orthographic and perspective projections, Algebric and geometric forms, tangent & normal blending functions, re parametrization, Straight line, conics, cubic splines, bezier curves and B-spline curves

UNIT III
Algebraic and geometric forms, tangent & twist vectors, normal blending function, reparametrization, Sixteen point form, four Curve form, Plane surface, ruled surface
Surface of revolution, tabulated cylinder Bi-cubic surface, bezier surface, B-spline surface
Solid models and representation scheme B-rep & CSG, sweep representation, Cell decomposition, spatial occupancy enumeration

UNIT IV
Introduction, fixed programmable and flexible automation, Types of NC systems, MCU & other components, Co-ordinate system, NC manual part programming, G & M codes, part program for simple parts, Computer assisted part programming.
Introduction, FMS component, Types of FMS, FMS layout, planning for FMS, advantage and applications
Introduction, conventional process planning, Steps in variant process planning, types of CAPP, planning for CAPP

Suggested Reading:
·         CAD/CAM theory & practice (Ibrahim Zeid)
·         CAD/CAM (Groover & Zimmer)
·         Numerical control and computer aided manufacturing by RAO and Tiwari, TMG

NOTE: In the semester examination, the examiner will set 8 questions in all, at least two question from each unit, and students will be required to attempt only 5 questions, at least one from each unit.


Comments

Popular posts from this blog

DOM MANUAL / B-TECH / MECHANICAL / KUK - TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN.

OBJECTIVE: TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN. SPECIFICATIONS : 1.       GEAR TRAIN : SUN GEAR : 14 TEETH 2.       PLANT GEAR: 21 TEETH (2 NOS.) 3.       INTERNAL GEAR WITH : 56 TEETH TORQUE MEASUREMENT ·          INPUT TORQUE – MOTOR CURRENT CALIBRATED FOR MOTOR TORQUE. ·          PLANT CARRIER - PULLEY OF 50 MM DIA AND SPRING BALANCE. ·          INTERNAL GEAR - PULLEY, 120 MM DIA AND SPRING BALANCES. Ø   BOTH PULLEYS ARE PROVIDED WITH ROPE OF 12 Ø   MM DIA Ø   DRIVE MOTOR - 1HP DC MOTOR RPM MOTOR OPERATING ON 220 VOLTS Ø   50 HZ SUPLLY, DRIVING THE SUN GEAR. CURRENT(AMPS) TORQUE 1.00 0.5 1.20 1.5 1.40 2.5 ...

MANUFACTURING PROCESS - DRAFT OR TAPER ALLOWANCE

DRAFT OR TAPER ALLOWANCE BY DRAFT IS MEANT THE TAPER PROVIDED BY THE PATTERN MAKER ON ALL VERTICAL SURFACES OF THE PATTERN SO THAT IT CAN BE REMOVED FROM THE SAND WITHOUT TEARING AWAY THE SIDES OF THE SAND MOLD AND WITHOUT EXCESSIVE RAPPING BY THE MOLDER. FIGURE  SHOWS A PATTERN HAVING NO DRAFT ALLOWANCE BEING REMOVED FROM THE PATTERN. IN THIS CASE, TILL THE PATTERN IS COMPLETELY LIFTED OUT, ITS SIDES WILL REMAIN IN CONTACT WITH THE WALLS OF THE MOLD, THUS TENDING TO BREAK IT.  FIGURE  IS AN ILLUSTRATION OF A PATTERN HAVING PROPER DRAFT ALLOWANCE. HERE, THE MOMENT THE PATTERN LIFTING COMMENCES, ALL OF ITS SURFACES ARE WELL AWAY FROM THE SAND SURFACE. THUS THE PATTERN CAN BE REMOVED WITHOUT DAMAGING THE MOLD CAVITY.  PATTERN HAVING DRAFT ON VERTICAL EDGES DRAFT ALLOWANCE VARIES WITH THE COMPLEXITY OF THE SAND JOB. BUT IN GENERAL INNER DETAILS OF THE PATTERN REQUIRE HIGHER DRAFT THAN OUTER SURFACES. THE AMOUNT OF DRAFT DEPENDS UPON THE LENGTH OF THE...

ELECTROCHEMICAL MACHINING (ECM)

ELECTROCHEMICAL MACHINING (ECM) INTRODUCTION:- Electro chemical machining (ECM) is a method of removing metal by an electrochemical process. It is normally used for mass production and is used for working extremely hard materials or materials that are difficult to machine using conventional methods. Its use is limited to electrically conductive materials; however, this includes all metals. ECM can cut small or odd-shaped angles, intricate contours or cavities in extremely hard steel and exotic metals such as titanium, carbide etc. ECM is often characterized as "reverse electroplating," and is similar in concept to electrical discharge machining in that a high current is passed between an electrode and the part, through an electrolyte material removal process having a negatively charged electrode (cathode), a conductive fluid (electrolyte), and a conductive work piece (anode); however, in ECM there is no tool wear. The ECM cutting tool is guided along the desired ...