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Heat Treatments

Heat Treatments

Heat Treatments. Treating of materials by controlling cooling can produce differences in material properties. Annealing. Makes a metal as soft as possible Hypoeutectoid steels (less than 0.83% carbon) are heated above upper critical temp., soaked and cooled slowly.

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569 views • 27 slides
Classification and Selection of Materials and Components

Classification and Selection of Materials and Components

Classification and Selection of Materials and Components. HEAT TREATMENT OF METALS. Heat treatment refers to the process of heating and cooling metals in a controlled manner. Heat treatment processes are carried out to change the properties of the metals.

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276 views • 22 slides
Annealing, Normalizing, and Quenching of Metals

Annealing, Normalizing, and Quenching of Metals

Annealing, Normalizing, and Quenching of Metals. Manufacturing Lab Experiment # 1. Introduction. Heat Treatment: It is a method used to alter the physical and chemical properties of a material. Heat treatments are also used in the manufacture of many other materials, such as glass.

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995 views • 18 slides
Annealing

Annealing

Annealing. Makes a metal as soft as possible Hypoeutectoid steels (less than 0.83% carbon) are heated above upper critical temp., soaked and cooled slowly. Hypereutecoid (above 0.83%) are heated above lower critical temp., soaked and allowed to cool slowly.

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605 views • 18 slides
Annealing

Annealing

Annealing. Makes a metal as soft as possible Hypoeutectoid steels (less than 0.83% carbon) are heated above upper critical temp., soaked and cooled slowly. Hypereutecoid (above 0.83%) are heated above lower critical temp., soaked and allowed to cool slowly.

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188 views • 18 slides
Diseases and Defects

Diseases and Defects

Diseases and Defects. Trees are living organisms so they are prone to diseases and defects. Diseases and defects affect the strength and quality of the wood however, it can make the timber more valuable because it looks well. Timber we get from trees can be subject to any of the following:

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301 views • 16 slides
Last class - Ceramic tools Cast irons

Last class - Ceramic tools Cast irons

Last class - Ceramic tools Cast irons. Today - Case hardening Hardenability test Quenching design. Case hardening. Gear tooth. Carburizing - pack & gas - add C from CO gas. Nitriding - add N from NH 3. Case must be Q & T, except for nitrided. Carbonitriding - add C & N from CO & NH 3.

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160 views • 15 slides
Heat Treatment of Metals

Heat Treatment of Metals

Heat Treatment of Metals. Introduction . Heat Treatment .

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1.17k views • 12 slides

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