Plastics Product Design — Winter 2021

What is product design? Explain its importance.

List the short term and long term properties of plastic materials.

Explain the steps in Product Design.

List the points of comparison between rotational molding and blow molding processes.

What are undercuts? What care should be taken while designing undercuts?

Explain the material and process selection to design a chemical storage tank.

Explain about design considerations while designing holes in product design.

What are reasons for failure of a plastic product?

Describe the preliminary design considerations for designing a product.

Explain the importance of taper or draft in product design.

List the points of comparison between compression and transfer molding process.

What is an ideal checklist for product design?

Explain wall thickness design considerations for designing a product.

Which is the process used to manufacture thermoplastic chairs and why?

What is the importance of designing radii and fillets in a product?

Explain the product design process for designing a wrist watch gear.

How is consideration of weld line important in designing a product?

By which process are thermoplastic disposable cups manufactured? Give reasons for the same.

What is the importance of ribs and bosses? What are the design considerations to be taken while designing ribs and bosses?

What is lettering and embossing and how is it important in product design?1

Which is an ideal material to manufacture plastic box with hinge and why?

Describe the procedure to select appropriate material and process to design an overhead water storage tank.

What is a parting line? Explain its importance in product design.

Write a short note on designing inserts in plastic part.

Describe in detail, the procedure for designing a plastic tooth brush.