IDM 331- Exercise 3

IDM 331- Exercise 3 - 23.12- The seven elements of...

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Review Questions 23.2 – The three modes of tool failure in machining are: 1. Fracture Failure 2. Temperature Failure 3. Gradual wear 23.5- The physical interpretation of the parameter C in the Taylor tool life equation is, The intercept on the speed axis, and the representation of the cutting speed that results in a 1-min tool life. 23.9-The principal alloying ingredients in high speed steel are: Tungsten, Molybdenum, Chromium, Vanadium, Cobalt, Carbon 23.10- The difference in ingredients between steel cutting grades and nonsteel-cutting grades of cemented carbides are as followed. Nonsteel cutting grades refer to those cemented carbides that are suitable for machining aluminum, brass, copper, magnesium, titanium, and other nonferrous metals. In the nonsteel-cutting grades, grain size and cobalt content are the factors that influence properties of the cemented carbide material. The Steel-cutting ingredients are titanium carbide and/or tantalum carbide. This is substituted for some of the tungsten carbide.
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Unformatted text preview: 23.12- The seven elements of single-point tool geometry are: 1. End Cutting Edge Angle (ECEA) 2. Nose Radius (NR) 3. Side Cutting Edge Angle (SCEA) 4. Side Rake Angle 5. Back Rake Angle 6. Side Relief Angle (SRA) 7. End Relief Angle (ERA) 23.15- The two general categories of cutting fluids according to function are: 1. Coolants 2. Lubricants 23.19- Cutting fluid filter systems are becoming more common and some of the advantages are: it helps with contamination issues, prolonged cutting fluid life between changes, reduced fluid disposal cost, cleaner cutting fluid, lower machine tool maintenance, and longer tool life. 23.20 Some of the problems associated with the use of cutting fluids are: Overheating the tool, operating at lower cutting speeds and production rates to prolong tool life, and absence of chip removal benefits in grinding and milling. Multiple Choice 23.1 A 23.3 B, C, G 23.5- C, E 23.7- D 23.9- B...
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IDM 331- Exercise 3 - 23.12- The seven elements of...

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