MANUFACTURING PROCESS

The main goal is to make the process of making components by using certain materials that meet the requirements of the shape and size and structure that is able to serve certain environmental conditions.Casting process utilizing liquid fluidity able to follow the shape of the container (mold) and then freeze them.Important consideration in the process of formation is the friction that arises between the workpiece by forming tools (eg, dead). Condition of friction in the gears, bearings, sliding bearings and other components similar to it, generally include: 
• Two surfaces with materials and nearly the same strength
 • Expenses elastic so that no surface plastic deformation 
• The existence of cycles in the wear-surface and eventually obtained a compatible pair
 • Usually occurs at low temperatures
 • Easy application and eliminate them
 • reactivity with the surface of the material 
• Ability to work on a variety of stress conditions. Temperature and speed of formation 
• His ability to wet the surface (both surfaces of the workpiece and tooling). 
other factors: 
TEMPERATUREInfluence of temperature on the formation process is in terms of changing the nature and behavior of the material.Based on the current temperature of defective materials, metal forming processes can be grouped into three types, namely hot working, cold working and warm working.
MUG HEATHot metal forming processes where the deformation process carried out under conditions of temperature and strain rate and deformation where recrystallization processes occur simultaneously.
COLD WORKThe process of formation by means of deformation carried out at temperatures below the recrystallization temperature condition known as cold working process (cold work) and is generally performed at room temperature. When compared with the heat then cold work process has several advantages, namely: 
1. No need for heating 
2. Surface finish (surface finishing) a better 
3. Directional properties can be lifted.
4. The problem of contamination can be reduced 
The disadvantages are: 
1. A large force is required to perform deformation 
2. Keep heavy equipment and large power 
3. Products become less resilient
 4. Damage to the nature of the 
5. The incidence of residual stress.
WARM formatingWarm forming process. the metal forming process in which the temperature lies between the temperature of the deformation process of hot and cold working.