| This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. |
Classes of materials include: | Non-ferrous metals and alloys - copper, aluminium, zinc, lead, tin, titanium and their alloysFerrous metals - carbon steels, alloy steels and cast ironsNon-metallic - composite materials, bearing materials, lubricants, ceramics, polymers and fabrics, adhesivesElectrical insulation materials, thermal conductors and insulators, electrical conductors, semiconductors and insulators |
Properties of materials include: | Strength, elasticity, plasticity, malleability, toughness, brittleness, fatigue endurance, mouldability, weldability, machinability, formability, resistance to creep and stress relaxation, resistance to degradation (e.g. use of plastic fillers to enhance UV resistance), adhesion; electrical, magnetic, thermal, chemical and optical; material structure and effect on properties, flammability of fabrics |
Other factors include: | Corrosion and corrosion protection methodsAging of metals and fatigueThe effect of manufacturing and construction processes on material properties (e.g. effect of heat treatment on corrosion resistance and fatigue properties, hydrogen embrittlement, shot peening of surfaces)The effect of property enhancement on design (e.g. adhesives plus sintering replacing some forging and machining of gears on shafts)Lay-up methods for composite structuresCosts, such as manufacture of material, source of material, and typical applications and possibilities |
Aeronautical engineering refers to: | The engineering discipline concerned with the conceptual development, research, design, manufacture, implementation, installation, commissioning and maintenance of aerospace mechanical, hydraulic, pneumatic, fuel and fire products, processes, systems or services for civil and military applications |
Australia’s national measurement system includes: | National Measurement Institute (NMI)National Association of Testing AuthoritiesStandards AustraliaJoint Accreditation System of Australia and New Zealand |
Sources of information include: | Reference textsManufacturer’s catalogues and industrial magazinesWebsitesUse of phone, email and fax information gathering |
Standards councils/societies/ authorities/regulatory bodies include: | Australian Standards (AS)American Society of Testing and Materials (ASTM)US Military Specification (MIL Spec.)American Society of Manufacturing Engineers (ASME)International Standards Organisation (ISO)CASAADFUnited States Federal Aviation Authority European Aviation Safety Agency |
Standards and codes include: | Non-destructive testing (NDT) and mechanical test standardsChemical test standardsElectrical test standardsCompliance test standards for components |
Tests of materials include: | Destructive, including tensile, compression, impact, hardness, fatigue, corrosion, stress relaxation and creep, and peel resistance (adhesives)Non-destructive, including hardness, ultrasonics, X-ray, magnetic particle, dye penetrant, eddy current, surface friction, conductivity, heat expansion, photoelastic, heat capacity refractive index and magnetic hysteresis loop |
Traceability includes: | Test calibrations that can be traced back to the relevant base unit in the relevant measurement system |