10+ Mankind Pharma Interview Questions and Answers

To prevent plastic defects, design engineers use methods such as mold flow analysis, material selection, gate design optimization, and part geometry considerations.

• Perform mold flow analysis to identify potential issues before production.

• Select the appropriate plastic material based on the requirements of the part.

• Optimize gate design to ensure proper filling and packing of the mold.

• Consider part geometry to minimize stress concentrations and improve overall quality.

• Use desig...read more

Various methods such as injection molding, blow molding, extrusion, and rotational molding are used in plastic manufacturing.

• Injection molding: molten plastic is injected into a mold to create a part

• Blow molding: air pressure is used to expand molten plastic into a mold

• Extrusion: plastic is melted and forced through a die to create a continuous profile

• Rotational molding: powdered plastic is rotated in a mold until it coats the entire surface

Renloyds number is a dimensionless number used in fluid mechanics to characterize the flow of a fluid over a surface.

• Renloyds number is defined as the ratio of inertial forces to viscous forces in a fluid flow.

• It is used to determine the type of flow (laminar or turbulent) that occurs over a surface.

• Renloyds number is calculated using the formula: Re = (ρ * V * L) / μ, where ρ is the density of the fluid, V is the velocity of the fluid, L is a characteristic length, and μ is ...read more

Draft angles are used in plastic to facilitate easy ejection of the molded part from the mold.

• Draft angles help prevent the part from getting stuck in the mold during ejection

• They reduce friction between the part and the mold walls

• Draft angles improve the overall quality and consistency of the molded part

• Common draft angles range from 1 to 3 degrees, depending on the material and design

Design library in SolidWorks is a feature that allows users to store and reuse commonly used parts, features, and assemblies.

• Design library provides easy access to standard components like screws, nuts, bolts, etc.

• Users can drag and drop items from the design library directly into their designs.

• It helps in saving time by reusing pre-designed components instead of creating them from scratch.

• Design library can be customized to include user-specific components and features.

• Examp...read more

The joining of 2 sheet metal processes can be achieved through methods like welding, riveting, adhesive bonding, or clinching.

• Welding: involves melting the edges of the two sheet metals and fusing them together.

• Riveting: involves using metal fasteners to join the two sheet metals together.

• Adhesive bonding: involves using a strong adhesive to bond the two sheet metals together.

• Clinching: involves deforming the edges of the two sheet metals to interlock them together.

Shrinkage in plastic refers to the reduction in size of a plastic part during the cooling process after molding.

• Shrinkage occurs due to the cooling and solidification of the molten plastic material.

• It is important to account for shrinkage when designing molds for plastic parts.

• Factors affecting shrinkage include the type of plastic material, mold temperature, and cooling rate.

• Examples of plastics with high shrinkage include ABS and polystyrene.

• Shrinkage can lead to dimensiona...read more

Root cause analysis is a systematic process of identifying the underlying cause of a problem or issue.

• Root cause analysis helps in understanding the fundamental reason behind a problem.

• It involves investigating the symptoms, identifying potential causes, and determining the primary cause.

• By addressing the root cause, it is possible to prevent the problem from recurring.

• Root cause analysis techniques include 5 Whys, Fishbone diagram, Fault Tree Analysis, etc.

• For example, if a ...read more

Plastic design consideration involves material selection, part geometry, manufacturability, and environmental impact.

• Material selection based on properties like strength, flexibility, and temperature resistance.

• Consideration of part geometry for moldability, assembly, and functionality.

• Ensuring manufacturability by designing for injection molding, extrusion, or other processes.

• Addressing environmental impact by choosing recyclable materials and minimizing waste.

• Testing for du...read more