Friday 31 January 2014

BASICS OF THERMODYNAMICS AND THERMODYNAMIC PROCESS OF PERFECT GASES

MASS

                      Mass is a property of a physical object that quantifies the amount of matter and energy it is equivalent to. Unlike weight, the mass of something at rest stays the same regardless of location. Mass is a central concept of classical mechanics and related subjects.
 
                      In physics, mass  is a property of a physical body which determines the body's resistance to being accelerated by a force and the strength of its mutual gravitational attraction with other bodies. The SI unit of mass is the kilogram (kg). As mass is difficult to measure directly, usually balances or scales are used to measure the weight of an object, and the weight is used to calculate the object's mass.

                                              SI Unit of mass is Kilogram.

                                                     Unit of mass is "m".

CASTING PROCESS

TYPES OF PATTERNS

The common types of patterns are:

1. Single piece pattern

2. Split piece pattern

3. Loose piece pattern

4. Gated pattern

5. Match pattern

6. Sweep pattern

7. Cope and drag pattern

8. Skeleton pattern

9. Shell pattern

10. Follow board pattern.

FUNDAMENTALS OF ENERGY

CLASSIFICATION OF ENERGY RESOURCES

                                The classification of energy resources chart is given below:


PROPERTIES OF FLUIDS AND PRESSURE MEASUREMENTS

DEFINITION OF FLUID

                            Fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids.
  
                            Fluid is a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force tending to change its shape.

AUTOMOBILE ENGINES

BASIC ENGINE COMPONENTS

  • Camshaft
  • Crankshaft
  • Connecting Rod
  • Cylinder Heads
  • Crank Case
  • Engine Belt
  • Engine Valve
  • Engine Oil System
  • Engine Block
  • Engine Overhaul Kits
  • Engine Brackets
  • Piston
  • Push Rods

INTRODUCTION TO CIM AND COMPUTER AIDED DESIGN & ANALYSIS

INTRODUCTION TO CIM

                  Computer-integrated manufacturing (CIM) is the manufacturing approach of using computers to control the entire production process.  This integration allows individual processes to exchange information with each other and initiate actions. Through the integration of computers, manufacturing can be faster and less error-prone, although the main advantage is the ability to create automated manufacturing processes. Typically CIM relies on closed-loop control processes, based on real-time input from sensors. It is also known as flexible design and manufacturing.

AUTOMATIC LATHES AND GEAR MANUFACTURING

AUTOMATIC LATHE

                          An automatic lathe is a lathe (usually a metalworking lathe) whose actions are controlled automatically. Although all electronically controlled (CNC) lathes are automatic, they are usually not called by that name, as explained under "General nomenclature". The first kinds of automatic lathes were mechanically automated ones, from the 1870s until the advent of NC and CNC in the 1950s and 1960s. CNC has not yet entirely displaced mechanically automated machines. The latter type of machine tool is no longer being newly built, but many existing examples remain in service.