38- A blanking operation is to be performed on 8.0 mm thick soft cold rolled steel. The part is circular with diameter= 90.0 mm. Determine the appropriate punch size for this operation (Punch diameter = Db - 2c) Clearance allowance value for Metal Group 1100S and 5052S aluminum alloys, 0.045 all tempers Ac 2024ST and 6061 ST aluminum 0.060 alloys; brass, all tempers; soft cold- rolled steel, soft stainless steel Cold-rolled steel, half hard; stainless steel, half-hard and full- hard 0.075

38- A blanking operation is to be performed on 8.0 mm thick soft cold rolled steel. The part is circular with diameter= 90.0 mm. Determine the appropriate punch size for this operation (Punch diameter = Db - 2c) Clearance allowance value for Metal Group 1100S and 5052S aluminum alloys, 0.045 all tempers Ac 2024ST and 6061 ST aluminum 0.060 alloys; brass, all tempers; soft cold- rolled steel, soft stainless steel Cold-rolled steel, half hard; stainless steel, half-hard and full- hard 0.075

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

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.

Question

38 - A blanking operation is to be performed on 8.0 mm thick soft cold rolled steel. The part is circular with diameter% D
90.0 mm. Determine the appropriate punch size for this operation (Punch diameter = Db - 2c)
%3D
Clearance allowance value for
Metal Group
1100S and 5052S aluminum alloys,
all tempers
Ac
0.045
2024ST and 6061 ST aluminum
0.060
alloys; brass, all tempers; soft cold-
rolled steel, soft stainless steel
Cold-rolled steel, half hard;
stainless steel, half-hard and full-
hard
0.075
a)
98,20
b)
89.04
88,80
82.70
e)
74,76

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