CHAPTER 7 HEAT TREATMENT
by Man Ai
1. TYPES OF HEAT TREATMENT
1.1. SOAKING - THE METAL AT THAT TEMPERATURE FOR A SPECIFIC AMOUNT OF TIME
1.2. HEATING -THE METAL TO SPECIFIC TEMPERATURE
1.3. COOLING -COOL THE METAL IN SPECIFIC MANNER
2. HEAT TREATMENT PROSSES
2.1. NORMALIZING
2.2. QUENCHING
2.3. ANNELING -FULL ANNELING -STRESS RELIEF -SPHEROIDIZING
3. DEFENITION
3.1. CONTROLLED HEATING AND COOLING OF METALS AFTER THEIR PHYSICAL AND MECHANICAL PROPERTIES
4. PURPOSE
4.1. - IMPROVE MACHINABILITY - REFINE SIZE -TO INCREASE RESISTANCE -TO WEAR HEAT AND CORROSIM