1. Technician is turning (lathing) a work material with shear strength of 250 MPa as shown in Fig.1. The following conditions are used: v = 4.0 m/s, ƒ = 0.25 mm/rev, d = 3.0 mm, and rake angle = 8° in the direction of the chip flow. The resulting chip ratio = 0.5. Chip Tool R N R/Fn Work Figure 1: Turning process. Using the orthogonal model as an approximation of turning, you have been asked to determine: (a) Shear plane angle. (b) Material removal rate. (c) Shear strain (d) Shear force. (e) Cutting force and thrust force.

1. Technician is turning (lathing) a work material with shear strength of 250 MPa as shown in Fig.1. The following conditions are used: v = 4.0 m/s, ƒ = 0.25 mm/rev, d = 3.0 mm, and rake angle = 8° in the direction of the chip flow. The resulting chip ratio = 0.5. Chip Tool R N R/Fn Work Figure 1: Turning process. Using the orthogonal model as an approximation of turning, you have been asked to determine: (a) Shear plane angle. (b) Material removal rate. (c) Shear strain (d) Shear force. (e) Cutting force and thrust force.

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

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

1. Technician is turning (lathing) a work material with shear strength of 250 MPa as shown in Fig.1. The
following conditions are used: v = 4.0 m/s, ƒ = 0.25 mm/rev, d = 3.0 mm, and rake angle = 8° in the
direction of the chip flow. The resulting chip ratio = 0.5.
Chip
Tool
R
N
R/Fn
Work
Figure 1: Turning process.
Using the orthogonal model as an approximation of turning, you have been asked to determine:
(a) Shear plane angle.
(b) Material removal rate.
(c) Shear strain
(d) Shear force.
(e) Cutting force and thrust force.

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