The following data are available from orthogonal cutting experiments. In both cases, depth of cut (feed) to = 0.13 mm, width of cut w = 2.5 mm, rake angle a = -5°, and cutting speed V = 2 m/s. a. Determine the shear angle o, friction coefficient u, shear stress t and shear strain y on the shear plane, chip velocity Vc and shear velocity Vs, as well as the unit energies. Compare the results. Parameters Chip thickness, tc, mm Cutting force, Fe, N Thrust force, F₁, N Work piece Materials Aluminum 0.23 430 280 Parameters Flow strength (Y₁, MPa) Thermal diffusivity; K, mm²/s Volumetric specific heat; pc, N/mm²°C Steel 0.58 890 800 b. Estimate the temperatures for the conditions of last problem for the following work piece properties. Work piece Materials Aluminum Steel 120 523 97 14 2.6 3.3

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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1 question. 2 parts
The following data are available from orthogonal cutting experiments. In both cases, depth of
cut (feed) to = 0.13 mm, width of cut w = 2.5 mm, rake angle a = -5°, and cutting speed V =
2 m/s.
a.
Determine the shear angle o, friction coefficient µ, shear stress t and shear strain y on
the shear plane, chip velocity Ve and shear velocity Vs, as well as the unit energies.
Compare the results.
Parameters
Chip thickness, tc, mm
Cutting force, Fc, N
Thrust force, Ft, N
Work piece Materials
Aluminum
0.23
430
280
Parameters
Flow strength (Y₁, MPa)
Thermal diffusivity; K, mm²/s
Volumetric specific heat; pc, N/mm²°C
Steel
0.58
890
800
b. Estimate the temperatures for the conditions of last problem for the following work
piece properties.
Work piece Materials
Aluminum Steel
120
523
97
14
2.6
3.3
Transcribed Image Text:The following data are available from orthogonal cutting experiments. In both cases, depth of cut (feed) to = 0.13 mm, width of cut w = 2.5 mm, rake angle a = -5°, and cutting speed V = 2 m/s. a. Determine the shear angle o, friction coefficient µ, shear stress t and shear strain y on the shear plane, chip velocity Ve and shear velocity Vs, as well as the unit energies. Compare the results. Parameters Chip thickness, tc, mm Cutting force, Fc, N Thrust force, Ft, N Work piece Materials Aluminum 0.23 430 280 Parameters Flow strength (Y₁, MPa) Thermal diffusivity; K, mm²/s Volumetric specific heat; pc, N/mm²°C Steel 0.58 890 800 b. Estimate the temperatures for the conditions of last problem for the following work piece properties. Work piece Materials Aluminum Steel 120 523 97 14 2.6 3.3
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