Interview Questions and Answers

GD&T is used to define the geometry, dimensions, and tolerances of mechanical parts and assemblies.

• GD&T ensures clear communication between designers, engineers, and manufacturers

• It allows for more precise and consistent manufacturing processes

• GD&T helps to reduce errors and improve quality control

• It provides a common language for specifying part requirements

• Examples: using position tolerances to control the location of holes on a part, using flatness tolerances to ensure a s...read more

Minimum bend radius is determined by material type, thickness, and machine capabilities.

• Minimum bend radius is influenced by material type - softer materials can bend with smaller radius.

• Thicker materials typically require larger bend radius to prevent cracking or deformation.

• Machine capabilities, such as the size of the bending die, also play a role in determining minimum bend radius.

The location of the hole from the edge of the sheet is determined by the specified distance measurement.

• Measure the distance from the edge of the sheet to the center of the hole

• Use a ruler or measuring tape to accurately determine the distance

• Ensure the hole is positioned at the correct distance for the desired placement

Sheet metal thickness range varies depending on the material and application.

• Sheet metal thickness typically ranges from 0.4 mm to 6 mm.

• Thicker sheet metal (6 mm and above) is often used for structural applications.

• Thinner sheet metal (0.4 mm to 2 mm) is commonly used for automotive panels and electronics.

• Different materials have different thickness ranges, for example, aluminum sheet metal is often thinner than steel sheet metal.

Minimum flange length is determined based on the specific application and industry standards.

• Minimum flange length is typically determined by the size and pressure rating of the piping system.

• Industry standards such as ASME B16.5 provide guidelines for minimum flange dimensions.

• Consideration should also be given to factors such as gasket seating surface and bolt circle diameter.

• Example: For a 2-inch Class 150 flange, the minimum flange length may be specified as 1.38 inches.