Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Chapter 33, Problem 20RQ
To determine
The term voxel.
The significant of voxel in additive processes.
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2. Read the following Vernier caliper measurements. (The scales have been
enlarged for easier reading.) The Vernier caliper is calibrated in metric units.
(a)
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4 5
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(b)
1
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(c)
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Explain why on the interval 0<x<1000 mm and 1000<x<2000mm, Mt is equal to positive 160 Nm, but at x= 0mm and x=1000mm Mt is equal to -160 Nm (negative value!). What is the reason for the sign change of Mt?
20
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Gears
1079
A pair of helical gears consist of a 20 teeth pinion meshing with a 100 teeth gear. The pinion rotates at
Ta
720 r.p.m. The normal pressure angle is 20° while the helix angle is 25°. The face width is 40 mm and
the normal module is 4 mm. The pinion as well as gear are made of steel having ultimate strength of
600 MPa and heat treated to a surface hardness of 300 B.H.N. The service factor and factor of safety
are 1.5 and 2 respectively. Assume that the velocity factor accounts for the dynamic load and calculate
the power transmitting capacity of the gears.
[Ans. 8.6 kW
Chapter 33 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 33 - What are the four traditional families of...Ch. 33 - What are some of the assets and limitations of the...Ch. 33 - What are some of the manufacturing changes or new...Ch. 33 - Prob. 4RQCh. 33 - What is a prototype and how is it used?Ch. 33 - What are the four areas of application for the...Ch. 33 - What are some of the other terms that have been...Ch. 33 - What are the attractive benefits of free-form...Ch. 33 - What is involved in preprocessing?Ch. 33 - Prob. 10RQ
Ch. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - Prob. 13RQCh. 33 - What are the three families of layerwise...Ch. 33 - Prob. 15RQCh. 33 - Prob. 16RQCh. 33 - Prob. 17RQCh. 33 - What is stairstepping?Ch. 33 - Describe the coordinate system that has become...Ch. 33 - Prob. 20RQCh. 33 - What are some of the factors that affect the...Ch. 33 - What is hatching and how might it be affected by...Ch. 33 - Prob. 23RQCh. 33 - Of the three components of build time...Ch. 33 - Prob. 25RQCh. 33 - How the various layers produced during...Ch. 33 - Prob. 27RQCh. 33 - Prob. 28RQCh. 33 - Prob. 29RQCh. 33 - Prob. 30RQCh. 33 - Prob. 31RQCh. 33 - What are the advantages of inkjet deposition (ID)...Ch. 33 - How are the various layers produced during...Ch. 33 - Prob. 34RQCh. 33 - Prob. 35RQCh. 33 - How might the products of selective laser...Ch. 33 - Prob. 37RQCh. 33 - Why might some form of protective atmosphere be...Ch. 33 - Prob. 39RQCh. 33 - What is the difference between selective laser...Ch. 33 - Describe the ideal product for manufacture by...Ch. 33 - What are some of the advantages of using an...Ch. 33 - How are the various layers produced during 3-D...Ch. 33 - Prob. 44RQCh. 33 - Prob. 45RQCh. 33 - Prob. 46RQCh. 33 - Prob. 47RQCh. 33 - What are some of the potential benefits of...Ch. 33 - Prob. 49RQCh. 33 - Prob. 50RQCh. 33 - What are some of the advantages and disadvantages...Ch. 33 - Prob. 52RQCh. 33 - Prob. 53RQCh. 33 - Prob. 54RQCh. 33 - Prob. 55RQCh. 33 - How are products extracted after a...Ch. 33 - Prob. 57RQCh. 33 - Prob. 58RQCh. 33 - Prob. 59RQCh. 33 - What are some of the advantages of a physical...Ch. 33 - Prob. 61RQCh. 33 - How can the additive manufacturing processes be...Ch. 33 - Prob. 63RQCh. 33 - Prob. 64RQCh. 33 - Prob. 65RQCh. 33 - Prob. 66RQCh. 33 - Prob. 67RQCh. 33 - Prob. 68RQCh. 33 - Prob. 69RQCh. 33 - What are some of the commonly cited limitations or...Ch. 33 - Prob. 71RQCh. 33 - Prob. 72RQCh. 33 - Prob. 73RQCh. 33 - Prob. 74RQCh. 33 - Which of the additive manufacturing processes can...Ch. 33 - Prob. 2PCh. 33 - Prob. 3PCh. 33 - The ability to restore worn parts to original...Ch. 33 - Prob. 5PCh. 33 - Prob. 6PCh. 33 - Prob. 7PCh. 33 - Prob. 8P
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- 4. A single stage helical gear reducer is to receive power from a 1440 r.p.m., 25 kW induction motor. The gear tooth profile is involute full depth with 20° normal pressure angle. The helix angle is 23°, number of teeth on pinion is 20 and the gear ratio is 3. Both the gears are made of steel with allowable beam stress of 90 MPa and hardness 250 B.H.N. (a) Design the gears for 20% overload carrying capacity from standpoint of bending strength and wear, (b) If the incremental dynamic load of 8 kN is estimated in tangential plane, what will be the safe power transmitted by the pair at the same speed?arrow_forwardDetermine the stress in each section of the bar shown in Fig. when subjected to an axial tensile load shown in Fig. The central section is 30 mm hollow square cross- section; the other portions are of circular section, their diameters being indicated What will be the total deformation of the bar? For the bar material E = 210GPa. 20mi О 30mm 30mmm 2.6 15mm 30kN 1 2 10kN - 20kN 3 -329 91mm 100mm 371mmarrow_forwardCalculate the load that will make point A move to the left by 6mm, E=228GPa. The diameters of the rods are as shown in fig. below. 2P- PA 80mm B 200mm 2P 0.9m 1.3m.arrow_forward
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