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Illustrate the specification of PDDI
(i) The 3-D geometry of the product which is defined by a set of curves, surfaces and volumes.
(ii) The topology which describes the set of elements and relations for defining the product boundary.
(iii) The tolerance which is inherent in the accuracy of the manufacturing processes.
(iv) The future elements needed for defining manufacturing operations.
(v) The non-geometric information for organizational purposes and description of material and its properties.
ELECTRIC RESISTANCE WELDING Electric resistance welding is an important and widely applied non fusion welding process. This write up covers the basic principles of various resi
(a) What is a coated tool? What are its advantages? What types of coatings are used in cutting tool. Discuss. (b) Discuss different types of cutting fluids, their properties and
(a) What is an ideal gas ? How does it differ from perfect gas ? Write the different laws of perfect gas. (b) The pressure in a car tyre was checked at 15 o C temp. and reading
FRICTION WELDING In this, friction is employed to generate heat b/w two sliding or rotating metal surfaces. This process is usually carried out by placing the pieces to be welded
derivation for varing shear stress for thin circular tubes.
connecting rod AB of length L support a variable compressiv force F .Drive an expression for the moment of F about the crank axis O in the term of F L r and angle
Quenching and Tempering Cast iron pearlite structure might be heated to lower critical temperature and after that quenched to effect extremely rapid cooling. This treatment re
Newton law of motion: Secon d Law The rate of change of momentum is proportional to external force applied on the body and take place, in the same direction in which the
Fuse : Fuse wire is made of soft metal and housed in a glass tube. It is connected in circuit. It protects the electrical accessories, which may be damaged by the overflow o
Can you explain the principal of resistance welding? Classify various Resistance welding processes and Illustrate in detail two of them. With the help of neat and clean graph ex
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