Q4:- 1- The cutting action in machining involves a. shear deformation b. plastic deformation c. elastic deformation d. deflection of the work material to form a chip 2- A cutting tool has one or more sharp cutting edges and is made of a material that is than the work material. a. softer b. harder c. same hardness d. less hardness 3- In how many groups, metal removal process can be classified? а. 2 b. 3 с. 4 d. 5 4- The ratio of to to tc is Iscos ø Is cos (ø - a) Iscos ø Is cos (ø + a) Işsin ø Issin ø 5- a. r = b. r = C. r = d. r = Is cos (ø + a) ls cos (ø - a) 6- The time period between two consecutive resharpening, with which the cuts the material effectively is called as 7- shear plane is 8- The point at which the cu reground, is called as tool reaches, beyond which it w ill not function satisfactorily until it is a. Tool wear b. tool failure c. too diffusion d. none of the above 9- The cutting tool removes the metal from workpiece in the form of a. solid blocks b. Powder c. chips d. all of the above

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.