Paramtech Cad Services Design Engineer Interview Questions and Answers

A stress-strain diagram is a graphical representation of the relationship between stress and strain in a material.

• It shows how a material deforms under applied stress.

• The diagram typically consists of a linear elastic region, a yield point, and a plastic region.

• The slope of the linear region represents the material's elastic modulus.

• The yield point indicates the stress at which permanent deformation begins.

• The plastic ...read more

Material properties refer to the characteristics and behaviors of a material that determine its performance and suitability for specific applications.

• Material properties include mechanical properties (such as strength, stiffness, and toughness), thermal properties (such as conductivity and expansion), electrical properties (such as conductivity and resistivity), and chemical properties (such as corrosion resistance and...read more

Manufacturing processes are methods used to transform raw materials into finished products.

• Casting: pouring molten material into a mold to create a solid object (e.g. metal casting)

• Machining: shaping materials through cutting, drilling, grinding, etc. (e.g. CNC milling)

• Forming: deforming materials using pressure or heat (e.g. sheet metal forming)

• Joining: combining multiple parts together (e.g. welding, soldering)

• Additi...read more