Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 29, Problem 5RQ
What is the purpose of a spacer layer in surface micromachining?
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Chapter 29 Solutions
Manufacturing Engineering & Technology
Ch. 29 - Define MEMS, SIMPLE, SCREAM, and HEXSIL.Ch. 29 - Give three examples of common...Ch. 29 - Why is silicon often used with MEMS devices?Ch. 29 - Describe bulk and surface micromachining.Ch. 29 - What is the purpose of a spacer layer in...Ch. 29 - What is the main limitation to successful...Ch. 29 - What are common applications for MEMS andMEMS...Ch. 29 - Prob. 8RQCh. 29 - Prob. 9RQCh. 29 - Explain the differences between stereolithography...
Ch. 29 - What is MolTun? What are its main advantages?Ch. 29 - What is HEXSIL?Ch. 29 - What do SIMPLE and SCREAM stand for?Ch. 29 - Describe the difference between isotropic etching...Ch. 29 - Lithography produces projected shapes, so true...Ch. 29 - Which process or processes in this chapter allow...Ch. 29 - What is the difference between chemically reactive...Ch. 29 - The MEMS devices discussed in this chapter are...Ch. 29 - Explain how you would produce a spur gear if...Ch. 29 - Prob. 20QLPCh. 29 - Prob. 21QLPCh. 29 - Prob. 22QLPCh. 29 - Is there an advantage to using the MolTun process...Ch. 29 - The atomic-force microscope probe shown inFig....Ch. 29 - Estimate the natural frequency of the cantilever...Ch. 29 - Using data from Chapter 28, derive the time needed...Ch. 29 - It is desired to produce a 500 m by 500...Ch. 29 - If the Reynolds number for water flow through a...Ch. 29 - Prob. 30SDPCh. 29 - Prob. 31SDPCh. 29 - Prob. 32SDPCh. 29 - Design a micromachine or device that allows the...Ch. 29 - Conduct a literature search and determine the...Ch. 29 - Perform a literature search and write a...
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- Define the term Additive Manufacturing?arrow_forwardBased on the table below, which of the statements below is/are correct regarding the 3D printing process shown in the schematic? a.You can produce a room-temperature non-fragile 225C oven-safe food container with at least one material from the above table using this process and a 280C nozzle b.You can use this process to print plastic or brittle objects but not elastomers and rubbers c.Manufacturing a thermoplastic HDPE hose with an extrusion nozzle heated to 175C is possible with this process d.You can print thermoplastic and thermoset polymers with this process, you only need to make sure that the nozzle specs and the crosslinking conditions match the polymer requirements e.This process is best suited for the low volume production of tubes, bars and beams due to the nature of the extrusion processarrow_forwardWhat is a cost advantage of using preformed parts in a fabrication?arrow_forward
- What is the approach common to all material addition technologies to prepare instructions for the Rapid Prototyping system? UES PC WORDSarrow_forward1) How many categories of additive manufacturing technology are there according to ASTM F42 committee? (a) 5 (b) 6 (c) 7 (d) 8 2) An additive manufacturing process which builds a 3D part layer-by-layer by controlling a laser beam to selectively cure a vat of photocurable liquid resin is called (a) Laser stereolithography (b) Laser powder bed fusion (c) Selective laser sintering (d) Laser engineered net shaping 3) A vertex is a geometric entity of (a) 1D (b) 2D (c) 3D (d) None of the above 4) If the slopes of two curve segments are the same at the point of connection, we say these two curves are: (a) C° continuous (b) C' continuous (c) C? continuous (d) None of the above 5) How many points does a 3rd-degree B-spline curve with 10 control points pass through? (a) 2 (b) 3 (c) 4 (d) 10 6) Which of the following types of surfaces is most flexible for surface representation for a given set of control points? (a) Bicubic surface (b) Bezier surface (c) Coons surface (d) NURBS surfacearrow_forwardWhich one of the following processes or processing steps is not applicable in glassworking: annealing pressing O quenching O sinteringarrow_forward
- Working principle of 3D plastic printersarrow_forward5 Explain the “4C’s” practised as part of current Good Manufacturing Practice (cGMP) to prevent cross - contaminationarrow_forward(a) Figure 4 shows a HSS drill bit to be coated with TiN coating using either PVD or CVD coating proces. There is a requirement from the client; the product must be coated with a coating process that will not change its properties and will maintain its sharp edge on all sides. Considering the special requirement from the client: i. Propose the appropriate coating process to be used for this product. ii. Justify your answer in (i). Figure 4: Drill bit straight flutearrow_forward
- Please explain some methods for printing suitability and materials used for 3D printed applications in Aerospace, as Printed Winglet or wing module.arrow_forwardWhat is the significance of print spooling in the printing process, and how does it work?arrow_forwardDescribe the potential applications of 8D printing in aerospace engineering and materials science.arrow_forward
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