A circular shape blank will be cut of 107 mm diameter from a strip of 3.5 mm with a clearance value of 0.25 mm. Take the shear strength as 400 MPa. Determine The appropriate punch diameter. Blanking force. Blanking force when the blade angle is 5.70 o.

A circular shape blank will be cut of 107 mm diameter from a strip of 3.5 mm with a clearance value of 0.25 mm. Take the shear strength as 400 MPa. Determine The appropriate punch diameter. Blanking force. Blanking force when the blade angle is 5.70 o.

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter5: Turning

Section5.3: Machining Operations On The Lathe

Problem 1RQ: If a 0.050" depth of cut is taken on the diameter of a workpiece, by how much will the diameter be...

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Concept explainers

Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes, machining is precise and versatile.

Question

A circular shape blank will be cut of 107 mm diameter from a strip of 3.5 mm with a clearance value of 0.25 mm. Take the shear strength as 400 MPa. Determine

The appropriate punch diameter.
Blanking force.
Blanking force when the blade angle is 5.70 ^o.

A circular shape blank will be cut 106.7 mm diameter from a strip 3.50 mm with a clearance value of
0.25 mm. Take the shear strength as 400 MPa. Determine
a) The appropriate punch diameter.
b) Blanking force.
c) Blanking force when the blade angle is 5.70°.

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