Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 17, Problem 12RQ
To determine
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Name some properties of materials. How do you define these properties? Where do they come from?
What is the advantage of nitriding? Select all correct answers.
Some complex components can be nitride without difficulty.
Better wear resistance.
Better fatigue resistance.
The cheapest method of case hardening.
What is the correct definition of plastic deformation?
The behavior of a material when its size changes by the addition of heat.
The behavior of a material that deforms under load and returns to its original shape when the load is removed.
Deformation caused by cleavage, where the material is actually pulled apart across atomic planes within the crystals or along the grain boundaries.
The behavior of a material that deforms under load and does not fully return to its original shape when the load is removed.
1) What are strengthening mechanisms for metals? Explain. (if it necessary, on figures)
Chapter 17 Solutions
Manufacturing Engineering & Technology
Ch. 17 - Describe briefly the production steps involved in...Ch. 17 - Name the various methods of powder production and...Ch. 17 - Explain why metal powders may be blended.Ch. 17 - Describe the methods used in metal powder...Ch. 17 - What is isostatic pressing? How is it different...Ch. 17 - What hazards are involved in PM processing?...Ch. 17 - Describe what occurs to metal powders during...Ch. 17 - Prob. 8RQCh. 17 - Why might secondary and finishing operations be...Ch. 17 - Prob. 10RQ
Ch. 17 - Prob. 11RQCh. 17 - Prob. 12RQCh. 17 - Prob. 13RQCh. 17 - What is screening of metal powders? Why is it...Ch. 17 - Why are protective atmospheres necessary in...Ch. 17 - Why is there density variation in the compacting...Ch. 17 - What is the magnitude of the stresses and forces...Ch. 17 - List the similarities and differences of forging...Ch. 17 - Give some reasons that powder-injection molding is...Ch. 17 - How does the equipment used for powder compaction...Ch. 17 - Explain why the mechanical and physical properties...Ch. 17 - What are the effects of the different shapes and...Ch. 17 - Describe the relative advantages and limitations...Ch. 17 - How different, if any, are the requirements for...Ch. 17 - The powder metallurgy process can be competitive...Ch. 17 - What are the reasons for the shapes of the shown...Ch. 17 - Should green compacts be brought up to the...Ch. 17 - Because they undergo special processing, metal...Ch. 17 - In Fig. 17.12, it can be seen that the pressure is...Ch. 17 - Why do the compacting pressure and the sintering...Ch. 17 - What will be stronger: a blend of stainless steel...Ch. 17 - Name the various methods of powder production and...Ch. 17 - Estimate the maximum tonnage required to compact a...Ch. 17 - Refer to Fig. 17.11a. What should be the volume of...Ch. 17 - Determine the shape factors for (a) a cylinder...Ch. 17 - Estimate the number of particles in a 500-g sample...Ch. 17 - Prob. 37QTPCh. 17 - A coarse copper powder is compacted in a...Ch. 17 - A gear is to be manufactured from iron powders. It...Ch. 17 - What volume of powder is needed to make the gear...Ch. 17 - The axisymmetric part shown in Fig. P17.41 is to...Ch. 17 - Prepare an illustration similar to Fig. 13.1,...Ch. 17 - Prob. 44SDPCh. 17 - Compare the design considerations for PM products...Ch. 17 - Prob. 46SDPCh. 17 - Prob. 47SDPCh. 17 - Using the Internet, locate suppliers of metal...Ch. 17 - Explain why powder metal parts are commonly used...Ch. 17 - Prob. 50SDPCh. 17 - Describe how the information given in Fig. 17.15...Ch. 17 - It was stated that, in the process shown in Fig....Ch. 17 - Prob. 53SDPCh. 17 - The axisymmetric parts shown in Fig. P17.54 are to...Ch. 17 - Assume you are working in technical sales. What...
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- Describe the significance of the structures or machine components made of two materials with different coefficients of thermal expansion and identify at least THREE (3) examples of products where these arrangements are beneficial.arrow_forwardHeat treatment is the controlled heating and cooling of metals to alter their physical and mechanical properties without changing the product shape. When performing the cooling step of the tempering process, knife makers have used material such as clay to cover portions of the blade to slow the cooling rate of the covered steel. Why may this technique be beneficial for making a sword which holds a sharp edge while remaining flexible enough to withstand the forces subjected to it in battle?arrow_forwardif u have a variety of materials including low carbon steel, cast iron, high carbon steel, aluminum alloys, and epoxy resin, categorize all these materials into those high formability, low formability, and non- formability, respectivelyarrow_forward
- 6. What are the 4 strategies for strengthening metals? Explain in detail. Do these 4 strategies work for all metals regardless of their crystallinity? Why or why not?arrow_forward"Your boss requests a recommendation on which process to use to make fillet welds on stainless steel rail tank cars with this material. Your heart beating fast, you respond. " A: Use HYPERFILL®. The cooling rate is acceptable for this material and productivity gains are important given the large size of the product. B: "Use HYPERFILL®, for the same reasons as (A), BUT we need to change materials to a low carbon stainless steel (e.g. 304L) or we will get corrosion failure in the HAZ." C: "Use GMAW-P. For this material, this heat input is best. " D: "Use GMAW-P, for the same reasons as (C), but we need to change materials to a low carbon stainless steel (e.g. 304L) or we will get corrosion failure in the FZ."arrow_forward3. (a) Plot the relation of springback in terms of RiY/ET of three types of metals or alloys (listing their material properties in a table), and (b) describe your observations. 6arrow_forward
- 1- Ceramic matrix composites are designed to overcome which of the following weaknesses of ceramics (two best answers): (a) compressive strength, (b) hardness, (c) hot hardness, (d) modulus of elasticity, (e) tensile strength, and (f) toughness? 2- A facing operation is normally performed on which of the following machine tools (one best answer)? (a) drill press, (b) lathe, (c) milling machine, (d) planer. 3- A cylindrical workpart 125 mm in diameter and 900 mm long is to be turned in an engine lathe. Cutting conditions are: v = 2.5 m/s, f= 0.3 mm/rev, and d = 2.0 mm. The (a) cutting time, and (b) metal removal rate are: a) 7.18 min and 1400 mm3/s 7.85 min and 1500 mm/s b) 7.85 min and 1700 mm3/s c) 7.00 min and 1500 mm/s d) 4- Which of the following materials are not composites. (d) Portland cement, (a) cemented carbide, (e) rubber in automobile tires, (b) phenolic molding compound, (c) plywood, and (f) wood? 5- Which one of the following manufacturing processes will likely result in…arrow_forwardWhat is the advantage of nitriding? Select all the correct answers - some complex components can be nitride without difficulty - better wear resistance - better fatigue resistance -arrow_forwardلانقطة واحدة of Warm working The advantages over cold working are: 1) forces and power are higher,2) more intricate work geometries possible, and 3) need for annealing may be reduced .or eliminated T F Blow molding is an important industrial process for making one- piece hollow plastic parts with thick .walls T Sly The sequence of the Blow Molding is automated and often integrated with downstream operations such .as bottle filling and labeling T لنقطة واحدةarrow_forward
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