Manufacturing Engineering And Technology
7th Edition
ISBN: 9789810694067
Author: Stephen R. Schmid (author) Serope Kalpakjian (author)
Publisher: Pearson Education Orphans
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Textbook Question
Chapter 17, Problem 40QTP
What volume of powder is needed to make the gear in Problem 11.39?
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3) Should green compacts be brought up to the sintering temperature slowly or rapidly? Explain your reasoning.4) Name the various methods of powder production and the morphology of the powders produced.5) What are some P/M (powder metallurgy) products that have been intentionally designed to use the porosity or permeability features of the process?
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Discuss the effect of monomodal and bimodal particle size distribution of powderson the microstructure and properties of advanced ceramics. Which starting powders would youprefer and WHY?
Chapter 17 Solutions
Manufacturing Engineering And 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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- Explain the extrusion blow molding in detail.arrow_forwardShould green compacts be brought up to the sintering temperature slowly or rapidly? Explain your reasoning.arrow_forwardIn powder processing, a cylinder with a diameter of 2 inches and a height of 10 inches is to be made from fine copper powders. A single-action press is used for compaction. If the average density of the green product is 7 g/cm3 at the bottom half of the cylinder, estimate the compaction pressure at the punch surface. Assume no friction between the powders. The coefficient of friction between particles and containers is 0.2.arrow_forward
- Is reconstitution the act of mixing a liquid with a powder to make a liquid form?arrow_forwardThe part shown in Figure is to be pressed from fine copper powders using a compaction pressure of 1000 MPa. Dimensions are milimetres. Determinea) the required press tonnage to perform this operationb) the final weight of the part if the porosity is 15%. Assume shrinkage during sintering can be neglected. (the desity of copper =8,97g/cm3 )arrow_forwardExplain sintering and provide an ICT diagram of the processarrow_forward
- Why there is a need for powder processing of ceramics. Give at least two reasons and explain them brieflyarrow_forwardquick question about ceramic materials. why are ceramic samples difficult to mold into different shapes? thanks and will definitely rate!arrow_forwardIn solid state sintering of compacted metal powder material, discuss how the progress of microstructure changes in sintering can be observed by microscopy. Support your discussion with suitable schematic diagram.arrow_forward
- (b) What are the 3 consumable parts involve in 3D powder printing? Identify which one can be recycled.arrow_forward)Design a two-plate mould for the plastic product as shown in Figure with clearlyshowing the feeding system, cooling system and ejector system.arrow_forwardWhat are some P/M (powder metallurgy) products that have been intentionally designed to use the porosity or permeability features of the process?arrow_forward
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