Uniparts Group Senior Design Engineer Interview Questions and Answers

Allowable stress values vary depending on the material and type of loading (tension, compression, shear).

• Allowable stress values are typically provided by material specifications or codes.

• For example, for structural steel in tension, the allowable stress might be around 0.6 times the yield strength.

• In compression, the allowable stress might be lower than in tension due to buckling considerations.

• For shear, the allowabl...read more

The crane standard commonly used for designing is ASME B30.2.

• ASME B30.2 is a widely recognized standard for designing cranes

• It provides guidelines for the design, inspection, testing, maintenance, and operation of cranes

• Other standards like ISO 4301 and CMAA also used in crane design

Careful consideration of material selection, part geometry, draft angles, and tooling design is essential for designing die casted parts.

• Select the appropriate material based on the desired properties and cost-effectiveness

• Design parts with uniform wall thickness to prevent defects like porosity

• Incorporate draft angles to facilitate easy ejection from the mold

• Avoid sharp corners and complex geometries that can lead to ...read more

Common defects in plastic parts include sink marks, warping, flash, and short shots.

• Sink marks: caused by uneven cooling or thick sections in the part

• Warping: caused by uneven cooling or internal stresses in the material

• Flash: excess material around the edges of the part due to poor mold design or excessive injection pressure

• Short shots: incomplete filling of the mold cavity resulting in a part with missing sections