Jyoti Plastic Works Design & Development Engineer Interview Questions, Process, and Tips

The density of PP (Polypropylene) is approximately 0.9 grams per cubic centimeter.

• PP has a relatively low density compared to other plastics.

• The density of PP can vary slightly depending on the specific grade and manufacturing process.

• For example, a common grade of PP has a density of around 0.9 g/cm³.

• The density of PP is lower than that of materials like PVC (polyvinyl chloride) or HDPE (high-density polyethylene).

Edm stands for Electrical Discharge Machining, a process of shaping hard metals using electrical sparks.

• Edm uses electrical sparks to erode metal and create a desired shape

• It is commonly used in the manufacturing of aerospace and medical components

• Edm can be performed using wire or sinker machines

• The process is highly precise and can create complex shapes with tight tolerances

The density of ABS (Acrylonitrile Butadiene Styrene) is typically around 1.04 g/cm³.

• ABS is a common thermoplastic polymer used in various industries.

• The density of ABS can vary slightly depending on the specific formulation and additives.

• For example, ABS with higher levels of butadiene tends to have a lower density.

• The density of ABS is important to consider in applications where weight and volume are factors, such as

Designing products for molds involves considering the mold material, part geometry, and production volume.

• Determine the mold material based on the product material and production volume

• Consider part geometry and draft angles to ensure easy release from the mold

• Design for uniform wall thickness to prevent warping and sink marks

• Add fillets and radii to reduce stress concentrations and improve moldability

• Use simulation so...read more