When a machanice or a tool is made,the suitable must be chosen by considering its properties,which can be classicfied as machanice,thermal,electical and chemical .The
main types of materials used in machanical engineering are metals, polymer materials,ceramic and composite materials.The most commonly used materials are metals,which can be divided into ferrous and non-ferrous.They can be used in their pure from or mixed with other elements. In this second case we have an alloy and it is improve some properties of the metals.The most commonly used ferrous metals are iron and alloys which use iron .Because iron is soft and pasty it is not suitable to be used as a structural materials, so a small amount of carbon is added to it to make steel alloy.
Non-ferrous metals contain little or no iron.the most common non-ferrous metals uesd machanics are copper, zinc,tin and aluminium.some common non-ferrous alloys brass (formed by mixing copper and zinc)bronze(formed by mixing copper and tin) are other aluminium alloys which are used in the aircraft industry. Other example of materials used in mechanical engineering are plastic and rubber
PVC or polyviny chloride is a types ot plastic and is used to insulate wires and cables. rubber is a polymer and its best property is elasticity,as it returns to its originals size and shape after deformation.Ceramic materials are good insulators:hard,resistant and strong, but brittle composite materials are made up of two or more materials combined to improve their mechanical properties.Concrete is reinforced with steel and steel and is used in building engineering.
When a machanice or a tool is made,the suitable must be chosen by considering its properties,which can be classicfied as machanice,thermal,electical and chemical .Themain types of materials used in machanical engineering are metals, polymer materials,ceramic and composite materials.The most commonly used materials are metals,which can be divided into ferrous and non-ferrous.They can be used in their pure from or mixed with other elements. In this second case we have an alloy and it is improve some properties of the metals.The most commonly used ferrous metals are iron and alloys which use iron .Because iron is soft and pasty it is not suitable to be used as a structural materials, so a small amount of carbon is added to it to make steel alloy.Non-ferrous metals contain little or no iron.the most common non-ferrous metals uesd machanics are copper, zinc,tin and aluminium.some common non-ferrous alloys brass (formed by mixing copper and zinc)bronze(formed by mixing copper and tin) are other aluminium alloys which are used in the aircraft industry. Other example of materials used in mechanical engineering are plastic and rubberPVC or polyviny chloride is a types ot plastic and is used to insulate wires and cables. rubber is a polymer and its best property is elasticity,as it returns to its originals size and shape after deformation.Ceramic materials are good insulators:hard,resistant and strong, but brittle composite materials are made up of two or more materials combined to improve their mechanical properties.Concrete is reinforced with steel and steel and is used in building engineering.
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