Practical Concepts List and Explanations of Concepts (110410056)

Practical Concepts List


1- Drilling 

2- Laser Sintering 

3- Grinding 

4- Tapping

5- Bending 

6- Joining 

7- Hot-Cold-Hydro Forming

8- Shearing

9- CNC (Computer Numerical Control)

10- PLC (Programmable Logic Control) 


Explanations of Concepts

Work: Work is defined as a force causing the movement or displacement of an object. In the case of a constant force, work is the scalar product of the force acting on an object and the displacement caused by that force.

Energy: Energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. First law of thermodynamics states that energy is conserved quantity and energy can be converted in form, but not created or destroyed.

Velocity: Velocity is defined as a vector measurement of the rate and direction of motion. More simply, velocity is the speed at which something moves in a particular direction, such as the speed of a car traveling north on a major freeway, or the speed a rocket travels as it launches into space.

Acceleration: In physics or physical science, acceleration is defined as the rate of change (or derivative with respect to time) of velocity. To accelerate an object is to change its velocity, which is accomplished by altering either its speed or direction in relation to time.

Pressure: Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Tolerance: Tolerance is the limit of random (unintentional) deviation of a dimension from its nominal value.

Allowance: Allowance is the amount of designed (intentional) deviation between two mating dimensions in a fit, which, in combination with their respective tolerances, results into a maximum and minimum clearance or interference.

Fatigue: In materials science, fatigue is the weakening of a material caused by repeatedly applied loads. It is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading.

Vibration: Vibration, periodic back and forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium.

Power: In physics, power is the rate of doing work, the amount of energy transferred per unit time. Having no direction, it is a scalar quantity.