Case studies

Case studies - MTL 700 Lecture 4 Part 3: Case studies 1. 2....

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MTL 700 Lecture 4 Part 3: Case studies 1. Nylon Fan 2. Aluminum Piston 3. Ceramic Spark plug insulator 4. CD case 5. Car Bumper
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Process selection for a small nylon fan A small nylon fan is to be manufactured for a vacuum cleaner. The design requirements are summarized in the Table. Use the process attribute charts to identify the possible processes, making allowance if necessary for including a secondary finishing process. Small fan
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Process selection for a small nylon fan
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1- Material compatibility chart Nylon is a thermoplastic , all thermoplastic processes apply Conventional machining Injection molding Blow molding Compression molding Rotational molding Process selection for a small nylon fan Total 8
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2- Mass range (0.1 and 0.2 kg) Conventional machining & Resin transfer molding are excluded Injection molding Blow molding Compression molding Rotational molding Thermo-forming Polymer casting Process selection for a small nylon fan Total 6
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3- Thickness (4mm minimum ) Polymer casting is excluded Injection molding Blow molding Compression molding Rotational molding Thermo-forming Process selection for a small nylon fan Total 5
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4- Shape (3D solid) Blow molding, rotational molding and thermo-forming are excluded Injection molding Compression molding 5- Tolerance (less than 0.5 mm) Polymer casting and rotational molding are excluded Process selection for a small nylon fan Total 2 Total 2
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6- Roughness (less than 1 μm) All thermoplastic processes apply to a roughness of less than 1 μm except conventional machining
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This note was uploaded on 01/18/2012 for the course MECH MTL 700 taught by Professor Habiba during the Fall '11 term at Ryerson.

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Case studies - MTL 700 Lecture 4 Part 3: Case studies 1. 2....

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