لنقطة 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 Blow molding is an important industrial process for making one- piece hollow plastic parts with thick .walls *The sequence of the Blow Molding is automated and often integrated with downstream operations such .as bottle filling and labeling لنقطة

لنقطة 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 Blow molding is an important industrial process for making one- piece hollow plastic parts with thick .walls *The sequence of the Blow Molding is automated and often integrated with downstream operations such .as bottle filling and labeling لنقطة

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A thin steel disk of an oil separator of 100mm outside diameter is shrunk onto a solid steel shaft of 20mm diameter. The system is to be designed to make sure the disc does not become loose at speeds lower than 100000rev/min. Determine the shrinkage allowance required in order to avoid separation disc and shaft, at a speed of 100000rev/min. For the material assume a Young's Modulus, Poisson Ratio and density of 210GPa, 0.3 and 7850kg/m³ respectively.
Q.3- Choose the correct answer of the following: 1. Injection molding is a type of: (a) Vacuum casting (b) Centrifugal casting (c) Squeeze casting (d) Die casting 2. From various casting processes, investment casting process is the suitable operation for manufacturing of: (a) Engine blocks (b) Gears (c) Jewelry (d) Car wheels (e) Pipes 3. The welding process by (GMAW) process is (a) Slower than, (b) Faster than, (c) at same speed as (d) at unpredictable speed. 4. The clearance angle is provided on the tools with a view to (a) Strength the tool. (b) Shear off the metal. (c) Prevent the tool from rubbing on workpiece (d) Facilitate easy flow of chips. 5. Chances of crack propagation are more in: (a) Cold working process (b) Hot working process (c) Both of the above (d) None of the above 6. For machining of carbide material which of the following tool will be preferred? (a) Zero rake angle tools. (b) Large positive rake angle tools. c) Large negative rake angle tools (d) Small point angle…
ANDVANCED MANUFACTURING PROCESS 1. Describe in details the process of vacuum sealed molding. Your discussion must include the example of product that can be manufacture and types of material can be cast. You may used schematic diagram to help you explain these processes.
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3 Below are a set of carbon fibre propeller blades. Identify the most appropriate construction method for the blades. wole loop viwala lens of voll di woled or blow, Used with permission from Hartzell Propeller. Retrieved from: http://hartzellprop.com/products/propeller- systems/composite-propellers-piston-engine-aircraft/ (A) CNC 3D machining (B) Extrusion (C) Injection moulding (D) Vacuum lay up 020-000 Los of ins (8) asorgob 008 co pronarpent ovew oibersaryollot sdi to doinw no bettimans al 210 Dener SHU TH
In full mould (cavity-less) casting process, the pattern is made of (A) Expanded polystyrene (B) Wax (C) Epoxy (D) Plaster of Paris
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Define and discuss Blow molding Process in Metal and Plastic. Does blow molding can be use in Glass materials yes orno. Why?
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A horizontal true centrifugal casting process is used to make brass bushings with the following dimensions: length = 10 cm, outside diameter = 15 cm, and inside diameter = 12 cm. (a) Determine the required rotational speed in order to obtain a G-factor of 70. (b) When operating at this speed, what is the centrifugal force per square meter (Pa) imposed by the molten metal on the inside wall of the mold?
h, is placed on the top of the mold cavity of a closed type sand mould as shown in the figure. If the riser is of constant volume, then the rate of solidification in the riser is the least when the lindrical blind riser with diameter dand height is ratio h: d is Sprue basin Riser Mould cavity
In 2018, 25% of produced flat glass were recycled back as a raw material in the production of flat glass as it yielded sustainable impacts such as the reduction of energy requirement to heat up the furnace since the mixture will melt easily. In your opinion, can other types of glass wastes (eg. tempered glass, glass bottles, etc) be used as a raw material in the production of flat glass. Justify your answer by providing references.