(a) Explain the Classification of Welded joints. (b) Explain the design of eccentrically loaded riveted joints. (c) The lead screw of a lathe has Acme threads of 50 mm outside diameter and 8 mm pitch. The screw must exert an axial pressure of 2500 N in order to drive the tool carriage. The thrust is carried on a collar 110 mm outside diameter and 55 mm inside diameter and the lead screw rotates at 30 r.p.m. Determine (a) the power required to drive the screw; and (b) the efficiency of the lead screw. Assume a coefficient of friction of 0.15 for the screw and 0.12 for the collar.
(a) Explain the Classification of Welded joints. (b) Explain the design of eccentrically loaded riveted joints. (c) The lead screw of a lathe has Acme threads of 50 mm outside diameter and 8 mm pitch. The screw must exert an axial pressure of 2500 N in order to drive the tool carriage. The thrust is carried on a collar 110 mm outside diameter and 55 mm inside diameter and the lead screw rotates at 30 r.p.m. Determine (a) the power required to drive the screw; and (b) the efficiency of the lead screw. Assume a coefficient of friction of 0.15 for the screw and 0.12 for the collar.
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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Question No.14: (a) Explain the Classification of Welded joints.
(b) Explain the design of eccentrically loaded riveted joints.
(c) The lead screw of a lathe has Acme threads of 50 mm outside diameter and 8 mm pitch. The screw must exert
an axial pressure of 2500 N in order to drive the tool carriage. The thrust is carried on a collar 110 mm outside
diameter and 55 mm inside diameter and the lead screw rotates at 30 r.p.m. Determine (a) the power required to
drive the screw; and (b) the efficiency of the lead screw. Assume a coefficient of friction of 0.15 for the screw and
0.12 for the collar.
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