Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 22, Problem 1RQ
What are the major properties required of cutting-tool materials? Why?
Expert Solution & Answer
To determine
What are the major properties required of cutting-tool materials? Why?
Explanation of Solution
A cutting-tool material should have the below attributes:-
Hot hardness
Wear resistance coupled with hardness and strength of the tool stay intact at the temperatures experienced in machining operations. This property is responsible for making sure that the tool would not go through any plastic deformation. That is how it retains its sharpness and forms both.
Toughness and strength of impact
In interfered cutting tasks or forces like milling, and then turning a splined shaft on a lathe, the forces of impact on the tools is experienced time and again. This is because of vibration and chatter amid machining. But this neither chip nor break the tool.
Thermal shock resistance
To bear the fast temperature cycling, as experienced in interfered cutting.
Wear resistance
With the goal that a long-enough tool life is acquired before substituting becomes inevitable.
Chemical stability and inactiveness
Concerning the workpiece material, to evade or limit any unfavorable reactions, adhesion, and tool–chip diffusion which may fasten the wear of the tool.
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Complete the following problems. Show your work/calculations, save as.pdf and upload to the
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missing information to present a completed program. (Hint: You may have to look up geometry
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1. What are the x and y dimensions for the center position of holes 1,2, and 3 in the part shown in
Figure 26.2 (below)?
6.0000
Zero
reference
point
7118
1.0005
1.0000
1.252
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0.2180 deep
(3 holes)
2.6563 1.9445
Figure 26.2
026022 (8lot and Drill Part)
(Setup Instructions---
(UNITS: Inches
(WORKPIECE NAT'L SAE 1020 STEEL
(Workpiece: 3.25 x 2.00 x0.75 in. Plate
(PRZ Location 054:
'
XY 0.0 - Upper Left of Fixture
TOP OF PART 2-0
(Tool List
( T02 0.500 IN 4 FLUTE FLAT END MILL
#4 CENTER DRILL
Dashed line indicates-
corner of original stock
( T04
T02
3.000 diam. slot
0.3000 deep.
0.3000 wide
Intended toolpath-tangent-
arc entry and exit sized to
programmer's judgment…
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მu
Ət
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Chapter 22 Solutions
Manufacturing Engineering & Technology
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